U.S. PATENT AND TRADEMARK OFFICE
Information Products Division |
U.S. Patent Classification System - Classification Definitions
as of June 30, 2000
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Class 019
TEXTILES: FIBER PREPARATION
Class Definition:
Means for mechanically isolating and for manipulating fibers
so as to place them in condition for the purpose for which
they are to be utilized. Includes the bringing together of
the fibers into laps, slivers, and the like, but not twisting
or interlacing into permanent form.
(1) Note. Patents directed to the feeding of material to a
named fiber treating machine, combined with fiber treatment,
are classified in the appropriate subclasses in this class.
LINES WITH OTHER CLASSES AND WITHIN THIS CLASS
Mere cutting, i.e., mechanical shearing or abrading of a
filament or bundle of filaments unaccompanied by any textile
handling or treating operation, comprises subject matter of
Class 83, Cutting or Class 451, Abrading. For further
statement of the line between Classes 19 and 83 see the
reference to Class 19 in "Relationship to other classes
including, per se, cutting, severing, or incising" in section
III of the class definition of Class 83.
REFERENCES TO OTHER CLASSES
SEE OR SEARCH CLASS:
162, Paper Making and Fiber Liberation, appropriate
subclasses for methods and apparatus for fiber liberation
involving some chemical treatment whether or not combined
with mechanical treatment. See the definition of Class 162
for the scope of processes and apparatus provided therein.
193, Conveyors, Chutes, Skids, Guides, and Ways, appropriate
subclasses for a chute for guiding material.
198, Conveyors: Power-Driven. for a power-driven conveyor.
209, Classifying Separating, and Assorting Solids,
appropriate subclasses for a beater which enhances a cleaning
or separating operation, i.e., removal of dirt from fibers.
222, Dispensing, appropriate subclass for means to feed
material to a machine.
406, Conveyors: Fluid Current, appropriate subclasses,
particularly 134 for a beater which enhances a pneumatic
conveying operation.
SUBCLASSES
Subclass:
0.2
This subclass is indented under the class definition. Method
or apparatus including the step of or means for causing
cessation of operation of a machine of this class or a part
thereof in response to some condition occurring in the
material being fed, or through a defect in the machine or its
operation.
SEE OR SEARCH CLASS:
200, Electricity: Circuit Makers and Breakers, 61.13 for an
electrical switch which is controlled by a thread or strand:
subclass 61.14, wherein the switch is controlled by a knot or
change in the diameter of the thread or strand; and subclass
61.18, wherein the switch is controlled by the slack or run
out or failure of the strand to travel along its intended
path, in order to stop the machine.
Subclass:
0.21
This subclass is indented under subclass .2. Method or
apparatus wherein the cessation of operation is caused by
light responsive means which energizes an electric circuit
upon occurrence of an undesired condition.
SEE OR SEARCH CLASS:
192, Clutches and Power-Stop Control, subclass 127 or 129+
for photo safety stop mechanisms.
200, Electricity: Circuit Makers and Breakers, 61.2 for
photo-responsive detection operating a switch means.
356, Optics: Measuring and Testing, 385 for the
photoelectric mensuration of a moving object by means of
changes in visible light caused by the object; subclasses
429+ for the photoelectric monitoring of webs or threads for
light reflection or flaws, and subclass 242.1 for visual
thread counters.
Subclass:
0.22
This subclass is indented under subclass .2. Method or
apparatus including a step of or means for giving an audible
or visible response to the cessation of operation.
SEE OR SEARCH CLASS:
116, Signals and Indicators, 67 for an alarm or indicator;
subclasses 137+ for a horn; subclasses 147+ for a siren and
subclasses 148+ for a bell.
340, Communications: Electrical, 500 for an electric alarm.
Subclass:
0.23
This subclass is indented under subclass .2. Method or
apparatus wherein means are employed to detect variations in
the weight or size of a sliver and to stop the mechanism upon
substantial variation of the weight per unit volume of the
moving sliver.
Subclass:
0.24
This subclass is indented under subclass .23. Method or
apparatus wherein a roll means detects the variation in
density of the sliver passing thereunder and stops the
machine in response to said variation.
Subclass:
0.25
This subclass is indented under subclass .2. Method or
apparatus wherein the condition detecting means comprises a
feeler element resting upon the sliver which detects any
parting of the sliver mass or failure of the sliver supply.
SEE OR SEARCH CLASS:
200, Electricity: Circuit Makers and Breakers, subclass 61.18
for a strand slack, run out or failure actuated control
switch.
226, Advancing Material of Indeterminate Length, 10 for
means to stop a machine in response to a defect in material
being fed.
Subclass:
0.26
This subclass is indented under subclass .25. Method or
apparatus wherein the sliver soils or convolutes about a roll
causing the package of roll and strand to thicken about its
circumference thus causing the cessation of operation.
SEE OR SEARCH CLASS:
200, Electricity: Circuit Makers and Breakers, subclass 61.17
and 61.18 for running length web or strand breakage,
misalignment or decrease in spool, reel or idler rotation
which cause a circuit breaking.
Subclass:
0.27
This subclass is indented under the class definition. Method
or apparatus including, in addition to a treating step or
means, a step of, or means for applying heat, in order to
remove excess moisture from the fibers, to render them
adaptable for subsequent treatment.
SEE OR SEARCH CLASS:
28, Textiles: Manufacturing, 247, especially subclasses 249,
261 and 265+ for thread texturing combined with heating.
34, Drying and Gas or Vapor Contact With Solids, 148 for
drying of a sheet, web, or strand.
Subclass:
0.3
Processes and apparatus for severing filaments of indefinite
length, before such filaments are incorporated into a fabric,
to produce fibers approximating in length the staple fibers
of natural origin.
(1) Note. Although this and the indented subclasses do not
include inventions relating to the severing of continuous
filaments after they have been incorporated into a fabric, it
does include those directed to the breaking of filaments
united in a yarn or other twisted bundle.
(2) Note. Mere cutting, i.e., mechanical shearing or
abrading of a filament or bundle of filaments unaccompanied
by any textile handling or treating operation is not within
the scope of this or the indented subclasses. See Lines With
Other Classes in the class definition of this class.
(3) Note. For classification in this or the indented
subclasses, the severing operation must be claimed
significantly. That is, some detail of the severing
apparatus or process must be set forth in a patent claim, so
that the claim expresses a more specific embodiment of this
subject matter than that imparted by the mere recitation of
such terms as "stapilizing", "breaking" or "severing".
SEE OR SEARCH CLASS:
30, Cutlery, appropriate subclasses for cutter elements, per
se, and for hand cutting implements(e.g., razors).
57, Textiles: Spinning, Twisting, and Twining, 252 for
staplized yarns and for yarns fabricated at least partly from
stapled fibers.
65, Glass Manufacturing, 454 and 470+ for processes of
forming glass or slag fibers or filaments and especially
subclasses 476+ for glass or slag fiber attenuation;
subclasses 484+ for fiber forming apparatus, especially
subclasses 535+ for attenuation and severing.
99, Foods and Beverages: Apparatus, 635 for cutting or
removing the end section from a fruit or vegetable.
131, Tobacco, subclass 46, 63, 64.1+, 65, 83.1, and 91 for
processes and apparatus directed to cigar and cigarette end
trimming or cutting in combination with other cigar or
cigarette making operations, and subclasses 117 and 118 for
methods of and means for trimming or cutting associated with
the formation of a compressed tobacco charge.
164, Metal Founding, appropriate subclasses for apparatus and
processes for cutting continuous filamentary material by a
mechanical shearing operation.
241, Solid Material Comminution or Disintegration,
appropriate subclasses for methods and means for material
comminution including animal and vegetable.
425, Plastic Article or Earthenware Shaping or Treating:
Apparatus, 6 for means for making particulate material
(e.g., fibers, etc.) directly from liquid or molten material,
subclass 66 for filament forming and stretching means,
subclasses 67+ for filament forming means including an
immersed shaping orifice discharging directly into a liquid
bath or shower means, subclasses 72+ a filament spinner
combined into a downstream gaseous treating means, and
subclasses 461+ for a filament spinning nozzle, per se.
428, Stock Material or Miscellaneous Articles, 357 for a
structurally defined or coated fiber or filament and
especially subclasses 359+ for staple length fiber, or a mass
thereof.
451, Abrading, for apparatus for abrading continuous
filamentary material, noting particularly 182, 183, and 319+;
and subclasses 28+ for a method of abrading continuous
filamentary material.
Subclass:
0.35
This subclass is indented under subclass .3. Processes and
apparatus according to which the severing is produced by the
application of oppositely directed forces to the continuous
filaments substantially longitudinally thereof.
(1) Note. This type of staplizing is often referred to by
those working in the art as "stretch breaking", although no
substantial stretching of the filamentary material need be
accomplished by the employment of the inventions herein
classified. (see patent number 2,096, 795 to Dreyfus in
subclass .37 indented hereunder).
(2) Note. The typical tension breaking apparatus comprises
plural sets of drafting rolls, the peripheral speed of the
delivery rolls being considerably greater than that of the
feed rolls, causing the drafted filaments to be stressed
beyond the breaking point, the length of the stapled fibers
produced being determined (at least in part) by the spacing
or ratch of the roll pairs. Classification in this and the
indented subclasses, however, does not require that the
breaking forces be so supplied.
SEE OR SEARCH THIS CLASS, SUBCLASS:
236 for textile drafting apparatus and processes of general
application.
SEE OR SEARCH CLASS:
225, Severing by Tearing or Breaking, 1 for processes and
subclasses 93+ for apparatus for breaking or tearing sheet,
web, or rodlike material.
254, Implements or Apparatus for Applying Pushing or Pulling
force, appropriate subclasses for pulling implements of
general application.
Subclass:
0.37
This subclass is indented under subclass .35. Processes and
apparatus characterized by a weakening of the continuous
filaments before, or while, being subjected to the breaking
forces.
(1) Note. An example of weakening which takes place while
the weakened filament is being subjected to the breaking
forces is that produced by means located within the ratch of
breaking roll pairs. (See patent number 2,077,320 to Hale,
here classified).
(2) Note. Such weakening is resorted to mainly for the
purpose of minimizing the requisite magnitude of the breaking
forces and the consequent loss of fiber extensibility, and
for the purpose of predetermining the points along their
length at which certain filaments will be broken.
SEE OR SEARCH CLASS:
225, Severing by Tearing or Breaking, subclass 2 for
processes and subclass 96 for apparatus for weakening a
workpiece on an intended line of severance, and then breaking
or tearing along such weakened line.
Subclass:
0.39
This subclass is indented under subclass .35. Processes and
apparatus in which the filamentary material is subjected to
tension breaking operation and the product thereof is
subjected to a second such operation.
Subclass:
0.41
This subclass is indented under subclass .35. Processes and
apparatus and in which the continuous filaments are deflected
from a straight line or planar path in the zone of
application of the opposed breaking forces.
(1) Note. The deflection is usually provided to ensure an
effective grasp of the filaments by the breaking means.
SEE OR SEARCH THIS CLASS, SUBCLASS:
.37 for filament deflecting means which function to weaken
the filaments.
Subclass:
0.43
This subclass is indented under subclass .35. Processes and
apparatus in which either (1) a variegated starting material
is submitted to the stapilizing operation or (2) the
operation is so carried out that the stapilizing effect
varies either laterally (i.e., from filament to filament of
the substantially parallel filaments making up the stapilized
bundle) or longitudinally (i.e., along the length of the
stapilized fibrous product in the direction of the opposed
breaking forces).
(1) Note. The mere random staggering of fiber ends
inherently produced by the severing operation, and which is
necessary to the production or preservation of a continuous
top or yarn, is not sufficient variation or differential
effect to meet the above definition of this subclass.
(2) Note. Variations in starting material may be based on
any of the characteristics of textile strands, such as color,
texture, chemical composition, denier or count, breaking
strength, etc.
SEE OR SEARCH THIS CLASS, SUBCLASS:
144 and 145+, for fiber blending methods and means, per se.
Subclass:
0.46
This subclass is indented under subclass .3. Processes and
apparatus which include some treatment, ancillary to the
staplizing, of the continuous filaments before they enter the
staplizing zone.
(1) Note. The term "treatment" as used herein does not
embrace the formation of the filaments of their treatment or
working in the uncoagulated state, for which see Class 18,
subclasses 8 and 54.
(2) Note. For a more detailed statement of the line with
the textile treating classes see (3) Note to subclass .3 and
see the reference to each of Classes 8 and 68 under "SEARCH
CLASS" in the definition of subclass .56.
SEE OR SEARCH THIS CLASS, SUBCLASS:
.37 for prior treatment apparatus and processes effective to
weaken filaments about to be subjected to stretch breaking.
SEE OR SEARCH CLASS:
8, Bleaching and Dyeing; Fluid Treatment and Chemical
Modification of Textiles and Fibers, appropriate subclasses,
for particular processes for chemically treating textiles.
68, Textiles: Fluid Treating Apparatus, appropriate
subclasses for textile fluid treating apparatus.
Subclass:
0.48
This subclass is indented under subclass .46. Processes and
apparatus in which the prior treatment comprises aligning the
continuous filaments, separating or spacing them from one
another, or both.
SEE OR SEARCH CLASS:
28, Textiles: Manufacturing, 198 for means for separating
adjacent strands of a warp sheet, one up and one down.
139, Textiles: Weaving, subclass 98 for devices for
separating adjacent warp strands while they are being fed in
a loom.
226, Advancing Material of Indeterminate Length, appropriate
subclasses for methods of, and apparatus for, feeding
material without utilizing the leading or trailing ends to
effect movement of the material.
Subclass:
0.51
This subclass is indented under subclass .3. Processes and
apparatus in which the severing operation is combined with a
subsequent overlapping of the stapled fibers to form a
sliver, top or other longitudinally cohesive, substantially
continuous product.
(1) Note. Mere rearranging, as by drafting, of the fibers
of an already cohesive, substantially continuous stapled
fiber product is not such overlapping as will of itself
result in placement of an invention in this subclass. There
must be a placing of severed fiber ends into overlapping
relationship to form a cohesive product from individual
fibers, bundles or web sections. (The mere fact, however,
that a patent claims or discloses a drafting operation in
addition to such overlapping will not keep the patent from
this subclass).
SEE OR SEARCH THIS CLASS, SUBCLASS:
236 for fibrous product drafting apparatus and processes of
general application.
Subclass:
0.56
This subclass is indented under subclass .3. Processes and
apparatus constituting combinations of staplizing means and
methods with those directed to other operations.
(1) Note. All preceding subclasses must be investigated for
particular combinations as shown by the preceding subclass
titles.
SEE OR SEARCH THIS CLASS, SUBCLASS:
66 72, 80+, for processes and means for fiber bundle opening,
per se.
144 145 and 146, for fiber mixing apparatus and methods, per
se.
SEE OR SEARCH CLASS:
8, Bleaching and Dyeing: Fluid Treatment and Chemical
Modification of Textiles Fibers, appropriate subclasses for
the combination, with a staplizing method not claimed
significantly, of a significantly claimed method of
bleaching, dyeing, or chemically treating either the starting
material or the product of such staplizing method. See (3)
Note to the definition of subclass .3 above.
28, Textiles: Manufacturing, 217 for thread finishing
apparatus and processes. Where a thread-like member is
finished, e.g., texturized, preparatory to its being
stapilized and the staplizing is the last operation performed
on the thread-like member, then the patent is placed in this
class (19). Where the staplizing is just one of many
operations used in a thread finishing or fabric production
operation, then the patent is placed in Class 28 unless it is
provided for elsewhere.
68, Textiles: Fluid Treating Apparatus, appropriate
subclasses for the combination of significantly claimed
textile fluid treating apparatus with staplizing apparatus
which is not claimed significantly. See (3) Note to the
definition of subclass .3 above.
156, Adhesive Bonding and Miscellaneous Chemical Manufacture,
subclass 62.4 for combined staplizing and adhering of
stapled fibers to form webs by the application of binding
material.
241, Solid Material Comminution of Disintegration, subclass 4
for processes, and subclasses 31+ for apparatus for opening
spicules or bundles of parallelly arranged fibers (such as
asbestos) by a comminuting operation, e.g., by flexing the
bundle under pressure.
264, Plastic and Nonmetallic Article Shaping or Treating:
Processes, for processes for the molding and shaping of
plastic materials, particularly subclass 6 and 109+
pertaining to the formation, deposition and uniting of
particulate material.
425, Plastic Article or Earthenware Shaping or Treating:
Apparatus appropriate subclasses. For the combination of
staplizing means and apparatus for working plastic filaments;
also see (3) Note. and the search note to Class 425 in
subclass .3 above.
Subclass:
0.58
This subclass is indented under subclass .3. Processes and
apparatus in which the filamentary starting material moves in
an axial direction and is both laterally and longitudinally
cohesive and, as a whole, remains so during the staplizing
operation.
SEE OR SEARCH THIS CLASS, SUBCLASS:
.46 for inventions relating to the staplizing of
continuously flowing filamentary material, characterized by
the treatment of the material prior to or preparatory to
severing.
.56 for processes and apparatus for staplizing continuously
running material, the performance or use of which results in
some additional treatment of the material subsequent to or
during the staplizing.
35 for staplizing apparatus and methods effective to break
continuously running filamentary material by application of
opposed longitudinal forces.
SEE OR SEARCH CLASS:
28, Textiles: Manufacturing, 172 for methods and apparatus
for manipulating sheets of parallel strands, the sheet
generally having a thickness of one strand.
226, Advancing Material of Indeterminate Length, appropriate
subclasses for methods of, and apparatus for, feeding
material without utilizing the leading or trailing ends to
effect movement of the material; where a group of strands
constitutes a discrete sheet or web in and of itself, the
mere feeding thereof is proper subject matter for Class 226,
the feeding of a multiplicity of such groups being considered
a plural web feeding.
Subclass:
0.6
This subclass is indented under subclass .58. Processes and
apparatus in which the severing is accomplished by mechanical
shearing or fraying means.
SEE OR SEARCH CLASS:
83, Cutting, appropriate subclasses for apparatus and
processes for cutting substantially continuous filaments,
either individually or in sheets or bundles, into staple
fiber lengths involving no additional operation other than
feeding the filamentary material or handling the stapled
fibers for mere collection and/or transportation.
Subclass:
0.62
This subclass is indented under subclass .6. Processes and
apparatus in which a bundle or web of filaments travelling in
a plane parallel to the axis of a rotating cutter comes into
contact with the cutter at a translational speed differing
from the peripheral speed of such cutter.
(1) Note. The cutter may be provided with a helical cutting
blade or blades or some other form of blade which is inclined
to the cutter axis.
Subclass:
0.64
This subclass is indented under subclass .6. Inventions in
which the staplizing is accomplished by drawing the
continuous filamentary material past a sharp edged cutting
member so that the material maintains rubbing contact with
such member.
(1) Note. The cutting member may comprise an abrasive or
other roughened surface.
(2) Note. The filamentary material is often given a
component of motion effective to vary more or less
continuously, the transverse portion of the surface which is
presented to the cutter.
SEE OR SEARCH CLASS:
28, Textiles: Manufacturing, 219 and 259+, means for
finishing strand material by rubbing the surface thereof.
451, Abrading, particularly 182, 183, and 319+ for apparatus
operative merely to abrade running filamentary material
without effecting any typically textile result than the
filament or fiber abrading itself and without utilizing means
peculiar to the textile arts; and subclasses 28+ for a
corresponding process of abrading.
Subclass:
1
The freeing of the fibers by mechanical means from the parts
with which they have been produced in nature.
SEE OR SEARCH CLASS:
131, Tobacco, subclasses for 311 and 312 for tobacco leaf
disintegrating.
Subclass:
2
The fibers being of animal origin.
Subclass:
3
Removing silk from cocoons or similar operations.
SEE OR SEARCH CLASS:
8, Bleaching and Dyeing; Fluid Treatment and Chemical
Modification of Textiles and Fibers, for degumming and
desizing silk fibers, subclass 138.
435, Chemistry: Molecular Biology and Microbiology, if using
enzymatic action.
Subclass:
4
The separating of the feathers into fiber-like elements,
usually preliminary to making "featherbone".
SEE OR SEARCH CLASS:
57, Textiles: Spinning, Twisting, and Twining, particularly
subclass 4 for devices for covering or wrapping quillstock.
223, Apparel Apparatus, subclass 47 for devices for
preparing feathers for plumes, dusters, etc., for curling
feathers, and otherwise preparing feather ornaments not
otherwise provided for.
Subclass:
5
The liberation of stalk and leaf fibers of plants.
SEE OR SEARCH THIS CLASS, SUBCLASS:
115 for apparatus usually known as "hackles" when not
designed to operate on pulpy plants and when not combined
with other means especially adapted for decortication.
SEE OR SEARCH CLASS:
162, Paper Making and Fiber Liberation, subclass 20 for
processes of decortication of mechanical preparation of
textile fibers combined with a chemical fiber liberation,
subclasses 21+ to 28 for other combinations of mechanical
defibration and chemical fiber liberation processes, and
subclasses 234+ for digesters combined with mechanical
defibering means.
241, Solid Material Comminution or Disintegration, for fiber
liberation involving comminution and see section 5 of the
main class definition of that class (241) for the line.
Subclass:
6
Including means for stripping the seeds or leaves from the
plant.
SEE OR SEARCH CLASS:
460, Crop Threshing or Separating, subclass 24 for the
removal of the seeds, per se.
Subclass:
7
There being some liquid employed in the operation.
Subclass:
8
Removing material of a soft moist nature. Usually for
treatment of endogens, such as Manila hemp, agaves, New
Zealand flax, etc.
Subclass:
9
Air being projected into the material to facilitate the
operation.
SEE OR SEARCH THIS CLASS, SUBCLASS:
58 where a blast or suction is used to clear a saw
cylinder.
72 for the conveying of the material by pneumatic means.
Subclass:
10
There being means peculiarly adapted to act on each stalk to
split it open. Usually for removing the bast of exogens.
Subclass:
11
The material is grasped by a means which moves with it
through the decorticator.
SEE OR SEARCH THIS CLASS, SUBCLASS:
117 for similar feeds.
Subclass:
12
The material being carried substantially at right angles to
the longitudinal axis of the fibers.
Subclass:
13
The material being suspended in a vertical plane passing
through the zone of action of the decorticating element.
SEE OR SEARCH THIS CLASS, SUBCLASS:
125 for similar feeds.
Subclass:
14
For removing material of a soft moist nature.
Subclass:
15
For removing material of a soft moist nature.
Subclass:
16
There being only one rotating decorticator employed.
Sometimes the material is returned for more than one
treatment.
SEE OR SEARCH THIS CLASS, SUBCLASS:
26 and 27, for other single rotor decorticators.
Subclass:
17
For removing material of a soft moist nature.
Subclass:
18
At least one of the decorticators being rotary.
SEE OR SEARCH THIS CLASS, SUBCLASS:
24 for other rotary decorticators.
Subclass:
19
Decorticators of the endless-belt type.
Subclass:
20
For removing material of a soft moist nature.
Subclass:
21
There being a plurality of different decorticators, one of
which breaks the material to be removed by a vibratory
motion.
SEE OR SEARCH THIS CLASS, SUBCLASS:
22 and 23, for reciprocating brakes, per se.
Subclass:
22
Limited to means for breaking the material to be removed by a
vibratory motion.
SEE OR SEARCH THIS CLASS, SUBCLASS:
21 for other reciprocating brakes.
Subclass:
23
There being means for moving the material through the region
of operation in one direction.
Subclass:
24
The decorticator being a rotating body.
Subclass:
25
The decorticator being given a to-and-fro movement in an
axial direction.
Subclass:
26
The decorticating elements being mounted in only one rotary
member.
SEE OR SEARCH THIS CLASS, SUBCLASS:
16 for other single rotary decorticators.
Subclass:
27
For removing material of a soft moist nature.
Subclass:
28
For removing material of a soft moist nature.
Subclass:
29
Having at least one rotor for crimping and breaking the
material to be removed and another one with comb teeth to
enter between the fibers and pull off the pieces.
SEE OR SEARCH THIS CLASS, SUBCLASS:
30 31, and 32, for other brakes, and 128, for other combs.
Subclass:
30
Having at least one rotor for crimping and breaking the
material to be removed and another rapidly-moving one for
knocking off the broken material.
SEE OR SEARCH THIS CLASS, SUBCLASS:
29 31, and 32, for other brakes, and 33, for other beaters.
Subclass:
31
The rotors are adapted to crimp the material to be removed,
and thereby break it.
SEE OR SEARCH THIS CLASS, SUBCLASS:
29 and 30, for other brakes.
Subclass:
32
The direction of the rotation being first one way and then
the other.
Subclass:
33
There being a plurality of rapidly-moving rotors for knocking
the material off the fibers.
SEE OR SEARCH THIS CLASS, SUBCLASS:
30 for other beaters.
Subclass:
34
For removing material of a soft moist nature. Mostly
endogens.
SEE OR SEARCH THIS CLASS, SUBCLASS:
8 14-18, 20, 27, and 28, for other depulping machines.
Subclass:
35
The elimination of the pod in which seed fiber, like cotton,
is grown.
SEE OR SEARCH THIS CLASS, SUBCLASS:
56 for similar devices forming a part of a saw gin, and 85+
for machines which are not especially modified for this
purpose, but which are capable of beating the bolly cotton
until the pod is eliminated.
Subclass:
36
Having means for breaking open the pod and a rotating member
to continually throw back the material until the fibers are
separated from the open boll.
SEE OR SEARCH THIS CLASS, SUBCLASS:
37 for other knocker-rolls, and 38 for other breakers.
Subclass:
37
Having a rotating member to continually throw back the
material until the fibers are separated from the pod.
SEE OR SEARCH THIS CLASS, SUBCLASS:
36 for other knocker-rolls, and 53, for knocker-rolls which
are adapted to remove the seed from the fiber.
Subclass:
38
Having a means peculiarly adapted for breaking open the
pods.
SEE OR SEARCH THIS CLASS, SUBCLASS:
36 for other breakers.
Subclass:
39
Detaching seed from cotton and like fibers.
SEE OR SEARCH THIS CLASS, SUBCLASS:
304 for gin condensers.
Subclass:
40
The fibers being very short. Usually the longer fibers have
been ginned off.
Subclass:
41
The structure of the delinting mechanism.
SEE OR SEARCH CLASS:
99, Foods and Beverages: Apparatus, 600, for apparatus for
delinting cottonseed.
426, Food or Edible Material: Processes, Compositions, and
Products, subclass 288 and 481+ for processes including
delinting cottonseed.
Subclass:
42
The seed with the attached lint is placed in a chamber into
which the lint-engaging member enters and from which it
withdraws, pulling the lint out of the chamber and detaching
it from the seed, which cannot follow, the lint being then
doffed in the outside chamber.
Subclass:
43
There being a cylindrical surface of such a nature that the
lint will cling to it, the surface rotating so close to a bar
that the seed cannot follow the lint and will be detached.
SEE OR SEARCH THIS CLASS, SUBCLASS:
50 for analogous structure.
Subclass:
44
A chamber inclosing a rotating delinting member is adapted to
receive the seed and attached lint, the delinting occurring
while both seed and lint are within the chamber.
Subclass:
45
The axis of the rotor being vertical.
Subclass:
46
The rotor being of an open nature, which permits much of the
lint-seed mass to be worked otherwise than against the
chamber wall.
SEE OR SEARCH THIS CLASS, SUBCLASS:
47 for other skeleton rotors.
Subclass:
47
The rotor being of an open nature, which permits much of the
lint-seed mass to be worked otherwise than against the
chamber wall.
SEE OR SEARCH THIS CLASS, SUBCLASS:
47 for other skeleton rotors.
Subclass:
48
The structure of the gin proper.
Subclass:
49
The fiber is caught and drawn along between two surfaces in
rolling contact, the angle of contact being such that the
seed will not enter, but will be held back and detached.
Subclass:
50
There being a cylindrical surface of such a nature that the
fiber will cling to it, the surface rotating so close to a
bar that the seed cannot follow the fiber and will be
detached.
SEE OR SEARCH THIS CLASS, SUBCLASS:
43 for analogous structure.
Subclass:
51
With means moving to and fro along the bar to engage the seed
and aid in detaching it.
Subclass:
52
With means moving to and fro transversely of the bar to
engage the seed and aid in detaching it.
Subclass:
53
With means rotating near the bar to engage the seed and aid
in detaching it.
SEE OR SEARCH THIS CLASS, SUBCLASS:
36 and 37, for knocker rolls adapted to remove hulls from
seed cotton.
Subclass:
54
The structure of the cylindrical surfaces to which the fibers
cling and are drawn along.
SEE OR SEARCH CLASS:
492, Roll or Roller, for a roll, per se, not elsewhere
provided for, and see the notes thereunder.
Subclass:
55
A bank of circular saws slightly spaced apart is caused to
rotate with each saw projecting through a slit in a plate or
rib bank and engaging the seed fiber. The fibers cling to
the saw teeth as the teeth pass back through the slits
between the ribs and are detached, the slits being so narrow
that the seeds cannot follow.
Subclass:
56
Provided with means for eliminating the pod in which the seed
fiber is grown prior to the ginning action.
SEE OR SEARCH THIS CLASS, SUBCLASS:
35 for boll hullers, per se.
Subclass:
57
There being a plurality of saw banks.
Subclass:
58
Limited to the means for detaching the gin fiber from the
saws and discharging it from the gin. Frequently includes
means for eliminating pieces of pod and the like that are
still clinging to the fibers.
SEE OR SEARCH THIS CLASS, SUBCLASS:
303 for combined fiber detaching from gin saws, cleaning and
condensing thereof in web form.
305 for combined fiber detaching from gin saws and
condensing thereof in web form.
Subclass:
59
The fiber being detached from the saws by means of an air
current.
Subclass:
60
Limited to brush structure adapted for detaching the fibers
from the saws and producing a blast for conveying the fibers
through and out of the gin.
SEE OR SEARCH CLASS:
15, Brushing, Scrubbing, and General Cleaning, appropriate
subclasses, for brush structure not peculiarly adapted for
this purpose.
Subclass:
61
Limited to that portion of the ginning chamber which holds
the fiber mass against the saws and controls the escape of
the seeds.
Subclass:
62
The structure of the means which prevents the seeds or bolls
following the fiber caught by the saws.
Subclass:
63
The structure of the cylindrical saw bank or the saw
elements.
Subclass:
64
Means for removing undesirable matter from the saws.
Subclass:
64.5
This subclass is indented under subclass 39. Method or
apparatus wherein means are employed to present the cotton to
a ginning apparatus.
(1) Note. Patents including distribution of cottonseed to
several gins will be placed in this subclass.
(2) Note. Refer to (1) Note under the class definition for
further search fields.
SEE OR SEARCH THIS CLASS, SUBCLASS:
97.5 for feeding to a picking device.
105 for feeding to a carding device.
204 for feeding to a cleaning device.
Subclass:
65
Method and apparatus for disentangling, cleaning,
straightening, or performing other operations on fibers to
place them in condition for use.
(1) Note. Means for producing laps and slivers, though
intended to be used with machines found in this group, are
placed in the subclasses indented under subclass 144 of this
class.
SEE OR SEARCH CLASS:
241, Solid Material Comminution or Disintegration,
appropriate subclasses, for fiber working, including
comminution, and see section 5 of the class definition of
that class (241) for the line.
Subclass:
66
The fibers are treated with fluids or are curled, crimped, or
operated upon for some other purpose than to make them
straight or parallel.
SEE OR SEARCH THIS CLASS, SUBCLASS:
.56 for the combination of staplizing and the opening of
bundles of substantially parallel, staple length fibers.
SEE OR SEARCH CLASS:
8, Bleaching and Dyeing; Fluid Treatment and Chemical
Modification of Textiles and Fibers, for bleaching, dyeing
and chemical treating of textile fibers. See particularly
subclass 112 for improving felting properties of fibers and
furs (carroting).
28, Textiles: Manufacturing, 247 for methods and apparatus
for imparting a nonlinear configuration to yarn or strand
material composed of fibers or filaments.
57, Textiles: Spinning, Twisting, and Twining, for spinning,
twisting or twining operations combined with coating or
impregnating.
68, Textiles: Fluid Treating Apparatus, for Liquid treatment
in general of textiles and fibers.
118, Coating Apparatus, appropriate subclasses, for apparatus
for coating fibers, and see section III of the class
definition of Class 118, for the Line between Class 19 and
Class 118,
162, Paper Making and Fiber Liberation, 1 for chemical
Liberation of fibers, particularly subclass 9 for
combinations therewith physical modification of the fiber,
e.g., curling, puffing, etc.
239, Fluid Sprinkling, Spraying, and Diffusing, appropriate
subclasses, for structures used to discharge a fluid on wool
and the like fiber, when such structures are limited to the
fluid discharger per se.
427, Coating Processes, for a process of coating in general,
and note especially 212 for processes of coating particles,
flakes, or granules.
Subclass:
66.1
This subclass is indented under subclass 66. Method or
apparatus wherein the fluid or special treatment involves the
production of coils, crinkles, kinks or like distentions on
fibers.
SEE OR SEARCH THIS CLASS, SUBCLASS:
.46 for staplizing combined with some treatment, inclusive
of crimping or curling, ancillary to the staplizing, of the
continuous filaments before they enter the staplizing zone.
.56 for combinations of staplizing and other operations,
inclusive of crimping or curling.
SEE OR SEARCH CLASS:
28, Textiles: Manufacturing, 247 for surface modification by
crimping or curling of running thread lengths, and see the
search notes thereunder.
Subclass:
66.2
This subclass is indented under subclass 66.1. Method or
apparatus wherein the crimping or curling is effected by
passing fibers between interdigitated or interlocked moving
members which forward and mechanically shape the fibers
passing therebetween.
SEE OR SEARCH CLASS:
28, Textiles: Manufacturing, 279 for crimping or curling a
running length of thread by opposed intermeshing traveling
members, and see the search notes referred to therein.
Subclass:
80
Separating and cleaning fibers by means of blades or teeth
which strike or pull the material and not falling under the
groups of Carding or Combing.
Subclass:
81
The picking instrument is other than a rotating member.
Subclass:
82
The fibers to be separated having been twisted or interlaced
into a strand or fabric.
Subclass:
83
The feeding means holds onto the material while the picking
means separates the fibers.
SEE OR SEARCH THIS CLASS, SUBCLASS:
84 86+, and 96, for other gripping-feed pickers.
Subclass:
84
Means adapted to remove plant burs from wool, having a
gripping feed.
SEE OR SEARCH THIS CLASS, SUBCLASS:
83 86+, and 96, for other gripping-feed pickers.
Subclass:
85
The material is struck by a rapidly-rotating member,
therebeing an opposing member against which the material is
thrown and in combination with which the rotating member is
adapted to obtain a separation of foreign matter from the
material.
SEE OR SEARCH THIS CLASS, SUBCLASS:
70 for the automatic feed control.
Subclass:
86
Feeding means holds onto the material while the beater knocks
off the fibers.
SEE OR SEARCH THIS CLASS, SUBCLASS:
83 84, and 96, for gripping-feed pickers.
Subclass:
87
There being a plurality of rotating beaters.
SEE OR SEARCH THIS CLASS, SUBCLASS:
93 for other multiple-rotor beaters.
Subclass:
88
With means to collect the picked fibers together into a web
or lap.
SEE OR SEARCH THIS CLASS, SUBCLASS:
89 for related structure.
Subclass:
89
With means to collect the picked fibers together into a web
or lap.
SEE OR SEARCH THIS CLASS, SUBCLASS:
88 for related structure.
308 for condensing screens, per se.
SEE OR SEARCH CLASS:
156, Adhesive Bonding and Miscellaneous Chemical Manufacture,
appropriate subclasses for processes for making laminated
boards.
Subclass:
90
The material being carried along axially of the beating rotor
as it is acted upon.
Subclass:
91
There being a plurality of rotating beaters.
Subclass:
92
Means for feeding batches to the beater, the feed being
stopped between batches.
Subclass:
93
There being a plurality of rotating beaters.
SEE OR SEARCH THIS CLASS, SUBCLASS:
87 88, and 91, for other multiple-rotor beaters.
Subclass:
94
Limited to the structure of the rotary beating member.
SEE OR SEARCH THIS CLASS, SUBCLASS:
97 for nonbeater rotors.
Subclass:
95
Gratings against which the beaters work the fiber and through
which the dirt passes.
SEE OR SEARCH THIS CLASS, SUBCLASS:
77 for related structure.
Subclass:
96
Feeding means holds onto the material while the picking means
separates the fiber.
SEE OR SEARCH THIS CLASS, SUBCLASS:
83 84, and 86+, for other gripping-feed pickers.
Subclass:
97
Limited to the structure of the rotary picking member.
SEE OR SEARCH THIS CLASS, SUBCLASS:
94 for beater rotors.
SEE OR SEARCH CLASS:
492, Roll or Roller, for a roll, per se, not elsewhere
provided for, and see the notes thereunder.
Subclass:
97.5
This subclass is indented under subclass 80. Method or
apparatus wherein means are employed to present the fibers to
a picking device.
(1) Note. The patents in this subclass are restricted to
delivery of the fibers to the picking means. The feeding of
the fibers, combined with the holding of said fibers by the
feeding means while the fibers are picked, would be
classified in subclass 96 of this class.
(2) Note. Refer to (1) Note under the class definition for
further fields of search.
SEE OR SEARCH THIS CLASS, SUBCLASS:
64.5 for feeding to a ginning device.
105 for feeding to a carding device.
204 for feeding to a cleaning device.
Subclass:
98
Passing cotton or wool type fibers between relatively moving
surfaces which are almost in contact, the surfaces being
composed of closely lying points or teeth, usually, wire
ends. The engagement of the fibers is substantially between
the surfaces rather than between the sides of the teeth.
SEE OR SEARCH THIS CLASS, SUBCLASS:
144 and indented subclasses for inventions relating to the
combining of different materials or the forming of webs,
slivers, and the like, even when carried out on a card.
SEE OR SEARCH CLASS:
57, Textiles: Spinning, Twisting, and Twining, subclass 327
for combined carding and spinning operations.
119, Animal Husbandry, subclass 632 for a "card" used to
groom an animal.
131, Tobacco, 109.1, 321 for tobacco working machines
employing carding.
451, Abrading, 416 for an attachment for a carding machine
for grinding a card thereof, in situ.
Subclass:
99
This group includes inventions peculiarly adapted to (1)
other than the conventional card which has a large main
cylinder, a feeding means at one side, a doffing means at the
opposite side, and working means over the top of the cylinder
between the feeding and the doffing means, and (2) cards
having a specific type of working means.
Subclass:
100
Fibers carried on the main cylinders are caught and detached
in part by a small worker cylinder. These fibers are then
stripped from the worker cylinder by another cylinder and
returned to the main cylinder.
Subclass:
101
The fibers passing over a plurality of worker cylinders
before returning to the main cylinder.
Subclass:
102
The working surface which cooperates with the cylinder is
composed of bars arranged to travel in an endless circuit for
presenting their working surfaces to cleaners or strippers.
SEE OR SEARCH THIS CLASS, SUBCLASS:
113 for inventions relating to flat structure, per se.
Subclass:
103
Limited to the curved track on which the flats ride as they
pass over the cylinder.
Subclass:
104
The working surface is composed of bars which remain
stationary when in operative position.
SEE OR SEARCH THIS CLASS, SUBCLASS:
113 for inventions relating to flat structure, per se.
Subclass:
105
Means for picking off the fibers from the lap or supply and
presenting them to the carding surface.
SEE OR SEARCH THIS CLASS, SUBCLASS:
157 160, 161, and 163, for means for assembling slivers and
webs which may be fed to a card, but not peculiar thereto.
Subclass:
106
Means for removing the carded fleece.
SEE OR SEARCH THIS CLASS, SUBCLASS:
151 for devices for converting the fleece into a sliver.
Subclass:
107
Means for handling fibers that had escaped during the carding
or were separated as not in proper shape for further advanced
treatment.
Subclass:
108
Means for removing the card clothing the waste fibers and
dirt that have become embedded therein.
Subclass:
109
An air current being employed for the purpose.
Subclass:
110
Means for cleaning the flats.
Subclass:
111
The flats being caused to travel in an endless circuit.
Subclass:
112
The structure of the cylindrical members of the card.
SEE OR SEARCH CLASS:
492, Roll or Roller, for a roll, per se, not elsewhere
provided for, and see the notes thereunder.
Subclass:
113
The structure of the flat. Does not including peculiar to
the movement or mounting of the flat.
Subclass:
114
The structure of the covering employed on the working
surfaces of the card.
SEE OR SEARCH CLASS:
451, Abrading, for an apparatus for sharpening or a process
of sharpening card clothing by grinding, particularly
subclass 416 and 417 for an attachment to a textile machine
to abrade a card.
Subclass:
115
This subclass is indented under subclass 65. Method or
apparatus wherein means are employed to cause the fibers to
assume a parallel direction.
SEE OR SEARCH CLASS:
132, Toilet, 219 for combs designed to be used by inserting
the teeth into the hair on a person.
Subclass:
122
The combing members are of annular disk shape with the teeth
in a plane on the side.
Subclass:
123
One circle comb working within another. Generally known as
the Noble wool comb.
Subclass:
124
Means for causing the fiber to engage with the comb.
SEE OR SEARCH CLASS:
15, Brushing, Scrubbing, and General Cleaning, appropriate
subclasses for structure of brush, per se, when not
peculiarly adapted for this purpose.
Subclass:
125
The fibers are grasped by and suspended in a vertical plane
from a means which moves bodily along carrying the fibers
through the comb.
SEE OR SEARCH THIS CLASS, SUBCLASS:
13 and 14, for similar feeds.
Subclass:
126
The combing means includes both a traveling endless belt and
a rotating cylinder.
SEE OR SEARCH THIS CLASS, SUBCLASS:
127 for apron combs.
128 for cylinder combs.
Subclass:
127
The comb teeth being mounted on a traveling endless belt.
SEE OR SEARCH THIS CLASS, SUBCLASS:
126 for other apron combs.
Subclass:
128
The comb teeth being mounted on a rotating cylinder.
SEE OR SEARCH THIS CLASS, SUBCLASS:
29 for combs of this type combined with decorticators.
126 for other cylinder combs.
SEE OR SEARCH CLASS:
492, Roll or Roller, for a roll, per se, not elsewhere
provided for, and see the notes thereunder.
Subclass:
129
The comb teeth are mounted on bars which are caused to travel
in a circuit by means of screw feeds.
SEE OR SEARCH THIS CLASS, SUBCLASS:
.6 for gills operative to cut filaments of indefinite length
and draft the resulting fibers.
Subclass:
144
The bringing together of the fibers either with relation to
each other or with some other material.
SEE OR SEARCH THIS CLASS, SUBCLASS:
.51 for the combination of staplizing and overlapping of the
stapled fibers.
.56 for the combination of staplizing and mixing or blending
the resulting fibers.
SEE OR SEARCH CLASS:
156, Adhesive Bonding and Miscellaneous Chemical Manufacture,
62 for laminating processes including the step of forming a
lamina by bulk deposition of discrete particles.
264, Plastic and Nonmetallic Article Shaping or Treating:
Processes, 109 for processes for forming articles by uniting
randomly associated particles. Where the claims recite only
air laying of fibers the line with Class 264 is as follows:
Sole disclosure is that the fibers are tacky or adhesive
coated before air laying (Class 264).
Disclosure that air layed batt is subsequently rendered
adhesive or tacky after air laying (Class 19).
Disclosure that the fibers may or may not be coated with
adhesive before air laying (Class 19).
419, Powder Metallurgy Processes, 1 for processes for
forming articles by powder metallurgy with heating or
sintering wherein the powder particles may be fibrous or
filamental in form; and subclasses 61+ for processes for
forming articles by uniting randomly associated metal
particles which may be fibrous or filamental in form.
425, Plastic Article or Earthenware Shaping or Treating:
Apparatus, 80.1 for apparatus including air- felting means
for forming self-sustaining bodies of particulate material.
Subclass:
145
Either the fibers assembled are of different nature or they
are assembled with some other material.
(1) Note. The claimed addition of a binder to a fibrous
mass is sufficient to cause placement of a patent elsewhere.
This class takes mechanical entanglement of fibers unless
otherwise provided for (for example, see felting in Class
28).
SEE OR SEARCH CLASS:
2, Apparel, subclass 175.9 for a felt hat and a method of
making a felt hat.
366, Agitating, appropriate subclasses for mixing cement with
fibers.
Subclass:
145.3
This subclass is indented under subclass 145. Method of
apparatus wherein the fibers are assembled to the end
portion(s) of a relatively thin, elongated, rigid member.
(1) Note. The article being assembled is usually denoted as
a cotton swab.
Subclass:
145.5
This subclass is indented under subclass 145. Method or
apparatus wherein the fibers are assembled by a mixing
together of the fibers of different nature, as distinguished
from the assembly of preformed fiber assemblages (e.g., bats
or webs).
SEE OR SEARCH CLASS:
8, Bleaching and Dyeing; Fluid Treatment and Chemical
Modification of Textiles and Fibers, appropriate subclasses,
for methods of dyeing mixed fibers.
Subclass:
145.7
This subclass is indented under subclass 145.5. Method or
apparatus wherein the mixing of the fibers is accomplished by
passing the fibers of different nature between relatively
moving surfaces which are almost in contact, the surfaces
being composed of closely lying points or teeth.
SEE OR SEARCH THIS CLASS, SUBCLASS:
98 for carding devices.
Subclass:
148
The fibers are deposited by means of an air current on a
screen of the shape of the object desired.
SEE OR SEARCH THIS CLASS, SUBCLASS:
308 for other screen condensers.
Subclass:
149
A strip of fiber is wound on a form of the shape of the
article desired.
SEE OR SEARCH CLASS:
100, Presses, 76 for presses which additionally treat the
material by winding or folding a sheet, web or strand, not
elsewhere provided for.
242, Winding, Tensioning, or Guiding, for other winding
apparatus; e.g., 430 for method and apparatus for winding
flexible material upon a core to make an article which is a
composite thereof.
Subclass:
150
The forming of a round strand of fibers by merely pressing or
rubbing them together without continuous twisting.
Subclass:
151
Means for dividing a very thin web of fibers into strips
usually as it is being delivered from a card preparatory to
condensing the strips into slivers.
Subclass:
152
The sliver is carried between rolls which are given axial
reciprocation so as to rub the fibers together.
Subclass:
153
The sliver is passed between aprons which are given a motion
transversely to the travel of the sliver for rubbing the
fibers together.
SEE OR SEARCH CLASS:
428, Stock Material or Miscellaneous Articles, appropriate
subclasses for stock material in form of a single plural
layer web or sheet.
474, Endless Belt Power Transmission Systems or Components,
particularly 237 for a friction drive belt in an endless
belt power transmission.
Subclass:
157
Producing packages or structures from round untwisted fiber
strand.
SEE OR SEARCH CLASS:
242, Winding, Tensioning, or Guiding, 472.1 for winding a
sliver onto a spindle or the like.
Subclass:
159
Laying the sliver in a coil in a receptacle.
SEE OR SEARCH CLASS:
100, Presses, 82 for presses which treat the material by
winding or folding and which employ an eccentric opening
through which the material is circularly deposited, and not
elsewhere provided for.
Subclass:
160
Moving the sliver to and from substantially transversely to
the movement of a base upon which the sliver is being
deposited.
SEE OR SEARCH CLASS:
100, Presses, 80 for pressing apparatus which, additionally,
treats the material by folding it in zigzag formation, and
not elsewhere provided for.
Subclass:
161.1
This subclass is indented under subclass 144. Method or
apparatus for producing packages or structures from a flat
fiber strip.
SEE OR SEARCH CLASS:
28, Textiles: Manufacturing, 103 for method or apparatus for
entangling and interlocking the component members of a
nonwoven textile structure, e.g., a formed web.
Subclass:
163
Moving the webs to and fro substantially transversely to the
movement of a base upon which the web is being deposited.
SEE OR SEARCH CLASS:
100, Presses, 80 for presses which, additionally, treat the
material by folding it in zigzag formation, not elsewhere
provided for.
Subclass:
200
This subclass is indented under subclass 66. Method or
apparatus wherein fibers are treated for the purpose of
removing undesirable material therefrom, without otherwise
working the fibers or assembling them into a blend or
structure.
SEE OR SEARCH CLASS:
8, Bleaching and Dyeing; Fluid Treatment and Chemical
Modification of Textiles and Fibers, 137 for cleaning or
laundering.
15, Brushing, Scrubbing, and General Cleaning, subclass 256.6
for strand cleaning, and see (1) Note to subclass 262 of
this class.
131, Tobacco, for tobacco disintegrating and cleaning.
241, Solid Material Comminution or Disintegration,
appropriate subclasses for crushing foreign material from
fibers.
Subclass:
201
This subclass is indented under subclass 200. Method or
apparatus wherein the cleaning is accomplished by the
addition of a highly active, liquid or powder, agent brought
into contact with the fibers.
SEE OR SEARCH CLASS:
8, Bleaching and Dyeing; Fluid Treatment and Chemical
Modification of Textiles and Fibers, subclass 130 for
saponification of cellulose ester or ether fibers.
Subclass:
202
This subclass is indented under subclass 200. Method or
apparatus wherein the cleaning action occurs through deposit
of the fibers upon a foraminous member or by the passage of
the fibers to a rotating saw element wherein the fibers
attach to the saw teeth.
SEE OR SEARCH THIS CLASS, SUBCLASS:
304 for the making of a foraminous deposit to form a
permanent bat or web on the screen; and subclass 57 for gin
saws in a cotton gin environment.
SEE OR SEARCH CLASS:
209, Classifying, Separating, and Assorting Solids,
appropriate subclasses for separation of undesired material
from fibers, in which no textile operation is claimed.
Subclass:
203
This subclass is indented under subclass 202. Method and
apparatus wherein means are employed to remove the fibers
from the foraminous or saw element.
SEE OR SEARCH THIS CLASS, SUBCLASS:
58 for doffing of a gin saw.
106 for doffing in a carding machine.
262 for clearing of a drafting device.
Subclass:
204
This subclass is indented under subclass 200. Method or
apparatus wherein means are employed to convey the fibers to
the cleaning mechanism.
(1) Note. The feeding of a textile fiber with a textile
treatment will cause placement of the patents in Class 19.
See (1) Note under class definition for further information.
SEE OR SEARCH THIS CLASS, SUBCLASS:
64.5 for feeding to a gin.
97.5 for feeding to a picking device.
SEE OR SEARCH CLASS:
226, Advancing Material of Indeterminate Length, for feeding
of material of indeterminate length.
Subclass:
205
This subclass is indented under subclass 204. Method or
apparatus wherein the conveying means is a fluid propelling
current.
SEE OR SEARCH CLASS:
209, Classifying, Separating, and Assorting Solids, 132 for
feeding by fluid suspension, and subclass 250 for fluid
current feeding.
406, Conveyors: Fluid Current, appropriate subclasses for a
pneumatic conveyor.
Subclass:
215
This subclass is indented under subclass 115. Method or
apparatus comprising a step of, or means for, drawing the
fibers through the teeth in approximately fiber length
bunches. Figures 1 through 4, below, are illustrative of a
tuft combing operation. [figure] [figure] [figure] [figure]
(1) Note. The following description of a tuft combing
device, is typical, though not restrictive or essential (of
subclass 215): In general the apparatus is one in which a
fiber lap (C) is delivered to nipper (B, D) comprising a pair
of gripping jaws, which jaws are operated in sequence to
allow the forward end of the lap (C) to pass therethrough and
then to close upon it and grasp it firmly, permitting a
portion of the lap (C) (which ultimately makes up the tuft)
to lie in the path of the comb teeth (1) on a comb cylinder
(H) whereby the forward end of such projecting portion is
combed. In carrying out the attenuation of this forward end,
the comb cylinder (H) presents the forward end to a pair of
detaching cylinders (F, G) (which may also be mounted for
oscillation - one or both - toward and away from the comb
cylinder). These cylinders (F, G) seize the front end
portion and by their forward rotation form a tuft, by
separating the projecting portion of the lap (C), and pull it
through the teeth of a top comb (E) which may be lowered for
this purpose. By such top combing action, the tail end of
the tuft is combed. The combed front end of the tuft and the
tail end of a preceding tuft are overlapped and pieced
together to form a continuous fleece (J).
Subclass:
216
This subclass is indented under subclass 215. Method or
apparatus wherein each fiber length bunch is carried through
a combing area in such a manner that the length of such bunch
(i.e., tuft) is substantially perpendicular to its direction
of travel (in the combing zone) and the tuft is presented
broadside to the comb teeth.
(1) Note. The tuft translating element usually has means
for clamping the tuft. A typical patent disclosure in this
subclass (216) relates to fibers clamped in a moving frame
which has a nonrotary direction of movement.
Subclass:
217
This subclass is indented under subclass 216. Method or
apparatus wherein the fiber bunches are carried by a gripping
cylinder from which they project toward the comb teeth, said
cylinder traveling in a fixed orbital path throughout the
entire combing operation.
Subclass:
218
This subclass is indented under subclass 215. Method of
apparatus including a step of, or means for, removing short
fibers and foreign matter from any portion of the tuft
combing apparatus.
SEE OR SEARCH THIS CLASS, SUBCLASS:
262 for clearing means in combination with drafting means.
263 for pneumatic clearers.
264 bottom roll(s) clearers.
SEE OR SEARCH CLASS:
15, Brushing, Scrubbing, and General Cleaning, 256.5 for
cleaning means which through contact scrapes, wipes, or
brushes a machine element, subclasses 256.6+ for cleaning
means acting upon a strand and subclasses 300.1+ for air
blast or suction cleaning.
Subclass:
219
This subclass is indented under subclass 215. Method or
apparatus in which means, other than a nipper, are provided
to press the tuft into intimate contact with a comb
cylinder.
SEE OR SEARCH THIS CLASS, SUBCLASS:
215 See (1) Note of subclass 215 for the definition of a
nipper.
235 wherein a nipper means serves to press the tuft into
contact with the comb cylinder.
Subclass:
220
This subclass is indented under subclass 215. Method or
apparatus wherein the combing means employed, to comb the
trailing portion of a fiber length bunch, are mounted and
secured on a plate or bar which may be movable into the space
between a nipper and a comb cylinder upon release of said
tuft portion from the nipper jaw.
(1) Note. The nonrotary comb is usually designated by the
art term "top comb". (See (1) Note, subclass 215 for the
definition of a nipper).
Subclass:
221
This subclass is indented under subclass 220. Method or
apparatus wherein the combing means employed remains in a
fixed position during the passage of the trailing tuft
portion through its teeth.
Subclass:
223
This subclass is indented under subclass 221. Method or
apparatus wherein movement of the combing means into its
working position is synchronized with the movement of a
grasping and/or detaching means.
(1) Note. Refer to (1) Note of subclass 215 for a
description of the grasping and/or detaching means and the
operation.
Subclass:
224
This subclass is indented under subclass 221. Method or
apparatus wherein means are employed to vary the distance
between the combing means and the trailing end of the tuft.
Subclass:
225
This subclass is indented under subclass 215. Method or
apparatus wherein the gripping jaws' opening and closing
motion is supplemented by an additional to-and-fro motion
towards and/or away from either a comb or detaching means.
See (1) Note subclass 215 for the function of the gripping
jaw, and for the definition of the detaching means.
SEE OR SEARCH THIS CLASS, SUBCLASS:
235 for a nipper, per se.
Subclass:
226
This subclass is indented under subclass 225. Method or
apparatus wherein a second nipper pair is provided and means
are employed for opening jaws of one nipper pair while
closing the other nipper pair, in sequence.
SEE OR SEARCH THIS CLASS, SUBCLASS:
235 for structure of the nipper, per se.
Subclass:
227
This subclass is indented under subclass 225. Method or
apparatus wherein the nipper jaws are biased into or out of
contacting engagement.
Subclass:
228
This subclass is indented under subclass 225. Method or
apparatus wherein the limit of the nipper's to and fro motion
is varied by changing the amplitude of such motion.
Subclass:
229
This subclass is indented under subclass 215. Method or
apparatus including a step of, or means for separating a
combed fiber-length bunch from a supply (lap) of the fiber to
which it is attached.
Subclass:
230
This subclass is indented under subclass 229. Method or
apparatus wherein the tuft engaging surface, of at least one
of the tuft engaging means, is an endless band.
Subclass:
231
This subclass is indented under subclass 229. Method or
apparatus wherein the separating is accomplished by a pair of
rolls.
SEE OR SEARCH THIS CLASS, SUBCLASS:
230 for detaching accomplished by an endless belt.
Subclass:
232
This subclass is indented under subclass 231. Method and
apparatus wherein at least one roll of the detaching roll
pair is bodily moved toward and away from the fiber-length
bunch.
SEE OR SEARCH THIS CLASS, SUBCLASS:
223 for a detaching roll pair moved in time relation to the
combing means.
Subclass:
233
This subclass is indented under subclass 215. Method or
apparatus in which the combing of a protruding or leading
edge of a lap, which constitutes the bunch or tuft, is
accomplished by a cylinder or drum, in which the comb teeth
are mounted, rotating about a fixed orbital axis.
Subclass:
234
This subclass is indented under subclass 233. Method or
apparatus wherein the comb teeth, mounted upon the rotating
cylinder or drum, are limited to a segment of the drum, or to
less than 360+ of the outside circumference of the rotating
member.
Subclass:
235
This subclass is indented under subclass 215. Apparatus
provided with a pair of opposed jaw means for gripping a
fiber lap and holding the projecting end thereof in the path
of a comb cylinder.
SEE OR SEARCH THIS CLASS, SUBCLASS:
225 for an oscillating or reciprocating nipper and subclass
223 for nipper motion timed with respect to combing means.
Subclass:
236
This subclass is indented under subclass 65. Methods or
apparatus wherein the working comprises feeding a fiber strip
by applying force at some area or point along the strip
length and simultaneously retarding said strip at an area or
point along the strip length removed from that at which the
feeding force is applied, thereby causing said strip to
become attenuated.
(1) Note. The distance between these two areas or points is
usually referred to as the "ratch".
(2) Note. In addition to patents restricted by claim to
drafting, there will be found in this and indented subclasses
patents to subcombinations not considered to be of general
utility, e.g., saddles.
SEE OR SEARCH CLASS:
425, Plastic Article or Earthenware Shaping or Treating:
Apparatus, subclass 66 for filament forming and stretching
means.
Subclass:
237
This subclass is indented under subclass 236. Method or
apparatus wherein are provided a step of or apparatus for
producing cyclical or random variations in the thickness of
the strip by changing the relative displacement of the fibers
produced by the drafting action.
(1) Note. Such devices produce a thickness or slub in the
fibers, thereby adapting the material to the production of
slubbed or fancy yarns.
SEE OR SEARCH CLASS:
57, Textiles: Spinning, Twisting, and Twining, 317 for
variable drafting means combined with significant twisting
(including false twisting) means.
Subclass:
238
This subclass is indented under subclass 237. Method or
apparatus wherein is provided a step of or apparatus for
increasing or decreasing the rate of feed of the fibers into
the drafting zone.
SEE OR SEARCH THIS CLASS, SUBCLASS:
260 for roll speed adjusting.
Subclass:
239
This subclass is indented under subclass 236. Process or
apparatus including a step of or means for detecting the
presence or absence of a condition of the work material, so
as to bring about a change in the drafting operation (other
than the mere cessation thereof) in response to such
detection.
(1) Note. Such change in the drafting operation may be,
typically, machine speed variation in response to a condition
in the work.
SEE OR SEARCH THIS CLASS, SUBCLASS:
.2 for means to stop the machine in response to some defect
in the work or the machine.
SEE OR SEARCH CLASS:
73, Measuring and Testing, for pneumatic testing of strand
thickness, pressure on a top roll, and drafting force.
226, Advancing Material of Indeterminate Length, 10 for
means to stop a machine in response to a defect in material
being fed.
Subclass:
240
This subclass is indented under subclass 239. Method or
apparatus wherein the change in the drafting operation is
brought about by a change in the rate of rotation of at least
one pair of drafting rolls.
SEE OR SEARCH CLASS:
74, Machine Element or Mechanism, 325 for speed changing.
475, Planetary Gear Transmission Systems or Components, for
planetary gear transmissions.
476, Friction Gear Transmission Systems or Components, for
friction gear transmissions.
Subclass:
241
This subclass is indented under subclass 240. Apparatus in
whose accomplishment or operation the rotary speed change is
brought about by moving a web (or chain) like power
transmitting element with respect to its mating power
transmitting element.
(1) Note. Typically, a roll-shaft-driving belt is moved
axially along a truncated cone cylinder, whereby the change
in the diameter of the cylinder causes the speed variation.
SEE OR SEARCH CLASS:
474, Endless Belt Power Transmission Systems or Components,
various subclasses for control of speed change, including
belt shifting mechanism, for endless belt power
transmission.
Subclass:
242
This subclass is indented under subclass 236. Method or
apparatus wherein individual fibers are elongated during the
drafting, in order to parallelize or straighten, but without
breaking thereof.
(1) Note. Many patents placed in this subclass disclose
that this stretching is for the purpose of imparting
increased luster or brilliance to the fibers.
SEE OR SEARCH THIS CLASS, SUBCLASS:
66 for special treatment of fibers (i.e.) for purposes other
than parallelization or straightening.
Subclass:
243
This subclass is indented under subclass 236. Method or
apparatus wherein a plurality of strips are directed into the
drafting zone and integrated into a single strip (e.g.,
sliver).
Subclass:
244
This subclass is indented under subclass 236. Method and
apparatus wherein the drafting action is accomplished by at
least one endless belt, guided or trained about a roll
cooperating with a roll or another belt.
SEE OR SEARCH CLASS:
160, Flexible or Portable Closure, Partition, or Panel,
appropriate subclasses for aprons.
198, Conveyors: Power-Driven, subclass 604 and 626+ for
opposed, load- gripping belt type conveyors.
428, Stock Material or Miscellaneous Articles, appropriate
subclasses for stock material in the form of a single or
plural layer web or sheet.
474, Endless Belt Power Transmission Systems or Components,
particularly 237 for a friction drive belt in an endless
belt power transmission.
Subclass:
245
This subclass is indented under subclass 244. Method or
apparatus including a step of or means for removing
undesirable material from the endless belt.
SEE OR SEARCH THIS CLASS, SUBCLASS:
262 for clearing means acting on a roll element.
SEE OR SEARCH CLASS:
15, Brushing, Scrubbing, and General Cleaning, 256.5 for
cleaning means acting upon a moving surface, in general; and
particularly subclass 256.6 for cleaning means acting upon a
running strand and subclasses 300.1+ for pneumatic cleaning
means.
198, Conveyors: Power-Driven, 494 for a conveyor having
installed as part or its structure a means for cleaning a
component of the conveyor.
Subclass:
246
This subclass is indented under subclass 244. Method or
apparatus wherein additional means are employed in close
proximity to the drafting zone to assure that the marginal
fibers of the strip are moved back into the main body of
fibers in order that these marginal fibers may be given a
proper drafting or attenuation.
Subclass:
247
This subclass is indented under subclass 244. Method or
apparatus wherein additional means are employed to
parallelize, or make straight, the path of the fibers through
the drafting zone.
SEE OR SEARCH THIS CLASS, SUBCLASS:
288 wherein means are employed to guide the strip through
the drafting operation.
Subclass:
248
This subclass is indented under subclass 244. Method or
apparatus wherein means are employed to restrain the fibers
approximately stationary in relation to the moving apron
until they are gripped at the exit drafting rollers.
Subclass:
249
This subclass is indented under subclass 244. Method or
apparatus including a step of or means for holding the belt
against gravity, intermediate its end limits, to insure the
proper drafting of the short as well as the long fibers.
SEE OR SEARCH CLASS:
198, Conveyors: Power-Driven, 837 for means for supporting
an endless belt conveyor.
Subclass:
250
This subclass is indented under subclass 244. Method or
apparatus where-in pressure is applied through a yieldable
means to the endless belt to stretch or tension the belt
along its length in order to secure a better grip upon the
fibers as they pass therebetween.
SEE OR SEARCH CLASS:
198, Conveyors: Power-Driven, subclass 709 and 813+ for
means for tensioning an endless belt conveyor.
Subclass:
251
This subclass is indented under subclass 250. Method or
apparatus wherein the tensioning or stretching of the endless
belt is accomplished by cylindrical weighted means about
whose axis the endless belt is trained.
Subclass:
252
This subclass is indented under subclass 244. Method or
apparatus wherein means are employed to direct the endless
belt along a path of travel and prevent a lateral shift of
the belt during the travel.
SEE OR SEARCH CLASS:
198, Conveyors: Power-Driven, 806 and 840 for means for
maintaining an endless belt conveyor on its conveying path.
Subclass:
253
This subclass is indented under subclass 252. Apparatus
wherein the means employed to direct the endless belt along
its closed loop path is a bar structure whose length is
greater than the width of the belt and said bar is modified
in some way to prevent excessive lateral movement of the belt
upon its return over the bar.
Subclass:
254
This subclass is indented under subclass 252. Apparatus
wherein the endless belt and its roll guide or drive are
supported by an element consisting of two generally parallel
side plates, arranged separated from one another and (usually
connected together at a point on each of their extremities by
a cross bar), at a distance slightly greater than the width
of the endless belt and its roll guide, in order to support
and guide the endless belt both in its movement about the
closed loop and in its lateral movement.
Subclass:
255
This subclass is indented under subclass 254. Device wherein
the guide and support element accommodates several endless
belts and their roll guides.
Subclass:
256
This subclass is indented under subclass 244. Method or
apparatus wherein a variation in position of pressure of an
element of the apron can be made with respect to (each other)
or with respect to the element support.
SEE OR SEARCH THIS CLASS, SUBCLASS:
282 for adjustment of spring applying pressure.
283 for adjustment of pressure applying member.
Subclass:
257
This subclass is indented under subclass 236. Method or
apparatus wherein one of the strip retarding means is a body
or block like structure which has a contour, usually concave,
which cooperates with the strip retarding means to attenuate
the strip in its travel.
Subclass:
258
This subclass is indented under subclass 236. Method or
apparatus wherein the simultaneous feeding and retarding of a
fiber strip is accomplished by a series of cooperating roll
pairs, spaced apart, which causes said strip to become
attenuated lengthwise upon its travel through the series.
SEE OR SEARCH CLASS:
198, Conveyors: Power-Driven, 604 and 624+ for opposed,
load-gripping conveyor rolls.
464, Rotary Shafts, Gudgeons, Housing, and Flexible Couplings
for Rotary Shafts, appropriate subclasses for a flexible
coupling between a torque transmitting shaft and a member
driven by the shaft.
492, Roll or Roller, subclass 48 for a roll cover, per se,
not elsewhere provided for, and subclasses 57+ for a single
annular roll member of specific composition.
Subclass:
259
This subclass is indented under subclass 258. Method or
apparatus wherein a roll pair, usually free floating and
frictionally driven, permits the passage of a strip
there-between, without any appreciable pressure upon or
drafting of said strip.
Subclass:
260
This subclass is indented under subclass 258. Method and
apparatus wherein means are employed for changing the rate of
rotation of a roll of one of the pairs, or changing the
spacing of such a roll with respect to either its mate in the
pair or a roll of another pair.
SEE OR SEARCH THIS CLASS, SUBCLASS:
239 for speed changing features responsive to material
sensing.
Subclass:
261
This subclass is indented under subclass 260. Method and
apparatus wherein the change of the roll spacing is the
relocation of one cooperating roll pair of a drafting frame
with respect to another roll pair of the frame.
(1) Note. The patents placed herein usually disclose the
relocation of the roll pairs in order to permit drafting of
fibers of variable length.
Subclass:
262
This subclass is indented under subclass 258. Method or
apparatus comprising a step of, or means for, removing
undesirable material from a drafting roll.
(2) Note. Subclasses 265 and 264 are restricted to clearing
a top roll and clearing a bottom roll, respectively. Patents
placed in this subclass 262 are directed to clearing method
or means which, as claimed, are effective upon both a top and
bottom roll.
(3) Note. Many of the patents placed in subclass 263 are
directed to pneumatic clearing of both top and bottom rolls;
hence a search for clearing both rolls should include that
subclass.
SEE OR SEARCH CLASS:
15, Brushing, Scrubbing, and General Cleaning, 256.5 for
cleaning means in physical contact with a moving surface.
Class 15 takes no more structure of the roller(s) or
arrangement thereof, claimed than that which constitutes the
cleaned area or that necessary to accommodate the cleaning
means. Class 15 takes claimed roller or pair(s) of rollers
as the object cleaned. Plural rollers or pairs of rollers
with only enough of the roller arrangement claimed to
accommodate or necessitate the cleaning means. Claims to
plural cleaning means will be placed in Class 15, subclass
105.
198, Conveyors: Power-Driven, 494 for a conveyor having
installed as part of its structure a means for cleaning a
component of the conveyor.
Subclass:
263
This subclass is indented under subclass 262. Method or
apparatus wherein the undesirable material is removed from
the rolls by a system of imbalanced air pressures.
SEE OR SEARCH CLASS:
15, Brushing, Scrubbing, and General Cleaning, 300.1 for
pneumatic means to clean a work surface.
Subclass:
264
This subclass is indented under subclass 262. Method or
apparatus wherein the undesirable material is removed from
the bottom roll only.
SEE OR SEARCH THIS CLASS, SUBCLASS:
262 for method or means for removing dirt, trash, etc., from
both upper and lower rolls.
SEE OR SEARCH CLASS:
15, Brushing, Scrubbing, and General Cleaning, 256.5 for
cleaning means in physical contact with a moving surface to
be cleaned.
Subclass:
265
This subclass is indented under subclass 262. Method or
apparatus wherein the undesirable material is removed from
the upper roll only.
SEE OR SEARCH THIS CLASS, SUBCLASS:
262 for method or means for clearing upper and lower rolls.
264 for cleaning a bottom roll only.
Subclass:
266
This subclass is indented under subclass 258. Method or
means including a step of, or means for, continually urging a
roll of a roll pair into engagement with the other roll of
the pair to effect a working cooperation. [figure]
(1) Note. Pressure applying device - Figure 5 denotes a
specimen of a typical pressure applying device as used in the
textile art. In Figure 5, above, "A" denotes a saddle; "B"
denotes a stirrup; "C" denotes pressure rolls; "D" denotes a
pivoted fulcrumed lever; "E" denotes a pressure applying
attachment means; "F" denotes a roll stand, the pressure is
transmitted to the pressure roll "C" through the pivoted
fulcrumed lever "D", which is pivoted to a fixed center, and
in turn through the stirrup "B" through the saddle "A".
SEE OR SEARCH THIS CLASS, SUBCLASS:
290 for method or apparatus involving the pressing or
running material against a roll (as distinguished from
pressing one roll of a pair against the other).
SEE OR SEARCH CLASS:
267, Spring Devices, appropriate subclasses 113-182 for a
spring pressure device, in general.
Subclass:
267
This subclass is indented under subclass 266. Method or
means in which a step of or means for rendering ineffective
the pressure applying device so that such device applies no
force to the roll(s).
Subclass:
268
This subclass is indented under subclass 267. Method or
means in which the pressure releasing step or means is
initiated or activated by movement of one roll of a roll pair
from its position of cooperation with the other roll of the
pair.
Subclass:
269
This subclass is indented under subclass 267. Method or
means, in which the pressure applying device is a mass whose
weight constitutes the source of roll-urging force, and
including a step of or means for elevating such mass to
render the weight ineffective upon the roll.
Subclass:
270
This subclass is indented under subclass 266. Method or
means including a step of or means for giving a visible or
audible response to the pressure or force imposed by the
pressure applying device.
Subclass:
271
This subclass is indented under subclass 266. Method or
means including a step of or means for distributing the
pressure equally to each of a plurality of roll pairs.
(1) Note. The force so applied to one roll pair is equal to
that so applied to any other roll pair, irrespective of the
distance between the roll pairs.
Subclass:
272
This subclass is indented under subclass 266. Method or
means in which that property of mass (greater than molecular
size) being repelled or attracted by an electrical field of
force is employed to urge a roll into working cooperation
with another roll of a pair, or the roll is urged by a fluid
pressure means.
(1) Note. The term fluid pressure is inclusive of air or a
liquid pressure.
Subclass:
273
This subclass is indented under subclass 266. Method or
means in which the force or pressure exerted by the urging
means is transmitted to the roll through a stirrup and
saddle.
(1) Note. The word "and" means that the roll pressure
applied through both a stirrup and saddle. [figure]
(2) Note. Letter "A" in Figure 6, above, denotes a saddle
used in the textile art for straddling and bearing upon two
or more drawing roll axles in such a manner that a pressure
load is applied through the saddle to the drawing roll axles.
In Figure 5, under subclass 266, the saddle is also
designated as letter "A".
Subclass:
274
This subclass is indented under subclass 273. Method or
means in which the force exerted by the pressure applying
means is applied through a pivoted arm linking means which is
pivoted to a fixed center and to which means the stirrup and
pressure applying means are both pivotally connected.
Subclass:
275
This subclass is indented under subclass 274. Method or
means in which the rolls are continually urged by a mass
whose weight is the source of pressure.
SEE OR SEARCH THIS CLASS, SUBCLASS:
269 for release of pressure applied by gravity means.
283 for application of pressure by gravity in the absence of
either a stirrup or saddle.
Subclass:
276
This subclass is indented under subclass 275. Method or
means in which the roll pressure is adjustable.
(1) Note. The selected degree of roll pressure may be
accomplished by adjustment of: (a) the fulcrum point; (b)
lever arm length; (c) the location of the stirrup* upon the
pivoted arm or saddle* and (d) the relocation of the
suspended mass upon the pivoted arm.
Subclass:
277
This subclass is indented under subclass 273. Method or
means in which solid resilient means supplies the roll
pressure.
SEE OR SEARCH THIS CLASS, SUBCLASS:
279 for application of pressure by spring means through a
saddle.
281 for application of pressure by spring means in the
absence of either a stirrup or saddle.
Subclass:
278
This subclass is indented under subclass 266. Method or
means in which pressure is transmitted to the roll through
means acting upon or carried by a saddle.
SEE OR SEARCH THIS CLASS, SUBCLASS:
273 for application of pressure through a saddle and
stirrup.
Subclass:
279
This subclass is indented under subclass 278. Method or
means in which solid resilient means supplies the roll
pressure.
SEE OR SEARCH THIS CLASS, SUBCLASS:
272 for application of pressure by hydraulic or pneumatic
means.
277 for application of pressure by resilient means through a
stirrup and saddle.
281 for application of pressure by resilient means in the
absence of either a stirrup or saddle.
Subclass:
280
This subclass is indented under subclass 279. Method or
means in which the pressure applied to the roll by the
resilient means, directly or indirectly, may be varied.
SEE OR SEARCH THIS CLASS, SUBCLASS:
282 for application of adjustable pressure by spring means
in the absence of either a stirrup or saddle.
Subclass:
281
This subclass is indented under subclass 266. Method or
means in which solid resilient means supplies the roll
pressure.
SEE OR SEARCH THIS CLASS, SUBCLASS:
272 for application of pressure by hydraulic or pneumatic
means.
277 for application of pressure by resilient means through a
stirrup and saddle.
279 for application of pressure by resilient means through a
saddle.
Subclass:
282
This subclass is indented under subclass 281. Method or
means in which the pressure applied to the roll by the solid
resilient means directly or indirectly, may be varied.
SEE OR SEARCH THIS CLASS, SUBCLASS:
280 for application of adjustable pressure by resilient
means through a saddle.
Subclass:
283
This subclass is indented under subclass 266. Method or
means wherein source of pressure is a weight.
SEE OR SEARCH THIS CLASS, SUBCLASS:
269 for release of pressure applied by gravity.
273 for application of pressure, from a gravity source,
through a stirrup and saddle.
275 for application of pressure from a gravity source,
through a fulcrumed lever, stirrup and saddle.
Subclass:
284
This subclass is indented under subclass 266. Means which
comprises a saddle* as such.
Subclass:
285
This subclass is indented under subclass 284. Device in
which means is employed to diminish frictional contact
between the bearing surface of a saddle and the shaft of a
roll.
Subclass:
286
This subclass is indented under subclass 258. Method or
apparatus including a step of compacting or compressing the
flowing work material by means of a generally cylindrical,
rotating body, or means comprising such a body and fulfilling
such function.
(1) Note. Such a roll may also have an attenuating function
and therefore serve as a member of a drafting couple.
SEE OR SEARCH THIS CLASS, SUBCLASS:
288 for condenser of the trumpet variety.
Subclass:
287
This subclass is indented under subclass 258. Method or
apparatus wherein the strip, in its travel through the
drafting machine, has an additional lateral back and forth
motion imparted to it by the guide or condenser roll.
(1) Note. These patents disclose means to cause the sliver
to have a to-and-fro motion during the feeding thereof.
Subclass:
288
This subclass is indented under subclass 258. Method or
apparatus wherein the drafting step or means is accompanied
by a step of or means for, passively directing or channeling
the flow of work material, compacting or compressing the
moving material, or retarding its flow.
(1) Note. The concept of passive direction includes the
action of a movable channeling device or an obstruction (such
as an idler roll), but excludes the imparting of motion.
Subclass:
289
This subclass is indented under subclass 288. Method or
apparatus wherein the step of guiding is accompanied by a
step of, or wherein the guiding means also performs the
function of, turning back upon itself a longitudinal edge
portion or area of the material being worked on.
Subclass:
290
This subclass is indented under subclass 288. Method or
apparatus in which the guide also serves to urge the work
into contact with a drafting roll by establishing a bight
between the roll and itself, so that any section of the work
material will, during its travel past the guide, engage both
the roll and the presser guide.
Subclass:
291
This subclass is indented under subclass 288. Method and
apparatus in which the guiding step is carried out by, or the
guiding means comprises, an element other than a closed
periphery tube.
Subclass:
292
This subclass is indented under subclass 288. Method and
apparatus in which the guiding step is carried out by, or the
guiding means comprises, a device whose mounting, or the
relationship of whose parts, may be altered at will.
Subclass:
293
This subclass is indented under subclass 258. Method or
apparatus wherein the drive of the drafting or feed rolls is
accomplished through a system of gearing or through contact
of a nondriven roll with a driven roll.
SEE OR SEARCH CLASS:
74, Machine Element or Mechanism, 325 for speed changing
means.
474, Endless Belt Power Transmission Systems or Components,
appropriate subclasses for belt and pulley power
transmission.
475, Planetary Gear Transmission Systems or Components, for
planetary gear transmission.
476, Friction Gear Transmission Systems or Components, for
friction gear transmissions.
Subclass:
294
This subclass is indented under subclass 258. Apparatus
wherein means are provided to support the roll or rolls of a
drafting frame against the force of gravity.
SEE OR SEARCH CLASS:
384, Bearings, 276 for sleeves, or liners.
Subclass:
295
This subclass is indented under subclass 294. Apparatus
wherein the claimed support means operates to support only
the upper roll of a roll pair.
Subclass:
296
Web forming:
This subclass is indented under subclass 144. Method or
apparatus for forming a flat nonwoven batt, mat, or strip of
fibers or filaments, the configuration of which is retained
solely by interfiber or interfilament friction.
(1) Note. This and the indented subclasses constitute the
repository for subcombinations concerned with the formation
of a nonwoven web from fibers or filaments. Excluded from
this and the indented subclasses are the following:
web formation from bulk deposition of particulate material
other than fibers or filaments;
web formation from bulk deposition of fibers from a liquid
suspension or slurry;
web formation from bulk deposition of fibers or filaments
combined with either:(1) formation of the fibers or filaments
from liquid or molten material; or (2) bonding or uniting of
the constituents of the web; or (3) mechanical manipulation
of the web to rearrange the constituents thereof.
(2) Note. For proper inclusion in this and the indented
subclasses, the disclosure must be limited to web formation
or bulk deposition of fibers or filament. A disclosure of
general utility or applicability to fiber or filaments and
other particulate material as powders, flakes, granules, and
the like excludes placement herein.
(3) Note. Comminuted wood, i.e., lignocellulose, as
prepared by an attrition mill or defiberizer in the form of
chips, flakes, shavings, wafers, or "wood fibers" for the
manufacture of composition panels, fiberboard, wallboard, and
the like are not construed as textile "fibers" proper for
this and the indented subclasses even though such material
may be referred to as "fibrous".
SEE OR SEARCH THIS CLASS, SUBCLASS:
.51 and .56, for combined fibrous web forming and
significantly claimed filament staplizing operations.
80 for combined fibrous web forming and picking, i.e., fiber
liberation or separation and cleaning.
98 for formation of a fibrous nonwoven web by a carding
operation.
160 for formation of a fibrous nonwoven web by deposition of
a sliver to-and-fro transversely of a moving or travelling,
collecting or receiving surface.
163 for formation of a fibrous nonwoven web by deposition of
a nonwoven web to-and-fro transversely of a moving or
traveling, collecting or receiving surface.
SEE OR SEARCH CLASS:
28, Textiles: Manufacturing, 103 for mechanical manipulation
as by felting, fulling, needling, or the like of a nonwoven
article or structure of fibers or filaments to rearrange and
retain the constituents thereof into altered positions by
interfiber or interfilament friction, inclusive of initial
formation of the nonwoven web.
65, Glass Manufacturing, 443 for batt-forming means combined
with means to form a glass filament or fiber.
156, Adhesive Bonding and Miscellaneous Chemical Manufacture,
62.2 for processes including the formation of a lamina by
assembling individually distinct fibers from a fluent mass,
adhesively bonding the fibers to each other, and then uniting
the lamina thus formed to itself or another lamina; and
subclasses 166+ and 433+ for processes and apparatus,
respectively, for bonding or uniting of flexible filamentary
material while in indefinite or running length form.
162, Paper Making and Fiber Liberation, 100 for processes of
forming a fibrous web by deposition from liquid suspension;
and subclasses 232+ for apparatus for producing water or
liquid laid fibrous webs.
209, Classifying, Separating, and Assorting Solids,
appropriate subclasses for processes and apparatus for
separating solid materials, inclusive of fibers, and
assorting or segregating them in grades or classes according
to physical characteristics.
242, Winding, Tensioning, or Guiding, 520 for processes and
apparatus for the winding of self-sustaining masses of
entangled fibers, which masses have substantial width with
respect to their thicknesses and are of indefinite length.
264, Plastic and Nonmetallic Article Shaping of Treating:
Processes, 5 for forming fibers from a liquid or molten
mass, other than glass, and bulk assembly thereof; subclass
437 for application of electrical or wave energy to fibers
for effecting deposition or orientation thereof combined with
an operation of this class (264); subclasses 517+ vacuum
deposition, collection, or assembly of fibers combined with
an operation of this class (264) or for the vacuum deposition
of particulate material not provided for elsewhere;
subclasses 109+ for the formation of a nonwoven web by
uniting discrete bulk assembled fibers without the direct
application of fluid pressure; subclass 143 for the formation
of continuous, running, or indefinite length filaments,
cutting or severing the filaments into staple fibers and
deposition collection or a assembly thereof into web form;
and subclasses 165+ for the formation of continuous or
indefinite filaments and deposition, collection, or assembly
thereof into web form when not combined with a cutting step.
419, Powder Metallurgy Processes, 1 for processes for
forming articles by powder metallurgy with heating or
sintering wherein the powder particles may be fibrous or
filamental in form; and subclasses 61+ for similar
processes.
425, Plastic Article or Earthenware Shaping or Treating:
Apparatus, 6 for apparatus to divide or comminute liquid
material, other than glass, to form discrete fibers and bulk
assembly thereof; subclass 66 for continuous filament forming
with stretching means, including deposition thereof in web
form; subclasses 80.1+ for the deposition of fibers or other
particulate material on a shaping surface from a gaseous
suspension when not provided for elsewhere or when such
deposition is combined with apparatus for performing an
operation of this class (425); and subclass 224 for means to
cast or deposit filaments of indefinite length on a forming
surface to form an indefinite length web.
Subclass:
297
With fiber sampling:
This subclass is indented under subclass 296. Method or
apparatus including the collection or formation of a
representative fiber array or specimen during a web forming
operation.
Subclass:
298
With split lap preventing:
This subclass is indented under subclass 296. Method or
apparatus wherein means are provided for preventing undesired
division or parting of the nonwoven web during either
fabrication or processing.
Subclass:
299
Including continuous filaments:
This subclass is indented under subclass 296. Method or
apparatus wherein the nonwoven web is formed of, or includes,
elongate, slender thread, or threadlike constituents of
indeterminate or running length.
SEE OR SEARCH CLASS:
28, Textiles: Manufacturing, 100 for forming a nonwoven web
by deposition of filamentary material transversely of a
longitudinally extending substrate, usually of filamentary
components; subclasses 103+ for contraction, relaxation, or
shrinkage of a nonwoven web of filamentary material to alter
or enchance interfilamentary entanglement; and subclasses
282+ for the formation of a nonwoven web of filamentary
material by lateral distention, expansion, or separation of a
tow.
65, Glass Manufacturing, 443 and 529+ for processes and
apparatus, respectively, for combined glass filament
formation and nonwoven web formation with coating or
treatment thereto.
156, Adhesive Bonding and Miscellaneous Chemical Manufacture,
166 and 433+ for the formation of a nonwoven web of
filamentary material and bonding or uniting of the
constituents thereof.
264, Plastic and Nonmetallic Article Shaping or Treating:
Processes, 165 for the formation of continuous or indefinite
length filaments and assembly, collection, or deposition
thereof into web form; and subclass 342 for shrinkage of a
nonwoven web of bicomponent or biconstituent filamentary
material.
Subclass:
300
Control means responsive to sensed condition or program:
This subclass is indented under subclass 296. Method or
apparatus wherein variations from a set norm in the nonwoven
web or constituent supply or in machine operation alters
operation of the machine, or wherein readily changeable data
or information in a preset arrangement or design controls the
sequence of machine operations or an element thereof.
SEE OR SEARCH THIS CLASS, SUBCLASS:
2 for stopping a web-forming operation in response to some
condition occurring in the material or through a defect in
the web-forming machine or its operation.
239 for alteration of a fiber drafting operation responsive
to material sensing other than mere cessation of the
operation.
Subclass:
301
Irregular, nonuniform, or patterned receiving surface:
This subclass is indented under subclass 296. Method or
apparatus wherein the formation of the nonwoven web is
effected by assembly or deposition of fibers on a collecting
member which is so arranged, configured, or designed as to
produce a web of varying fiber accumulation, density, or
shape, or as to produce discrete or subdivided web portions.
Subclass:
302
Stratified or multilayer:
This subclass is indented under subclass 296. Method or
apparatus wherein the nonwoven web is formed (a) by
sequential deposition of layers of similar fibers in such a
manner that a line of demarcation is presented between the
deposited layers; (b) by deposition of diverse fibers in such
a manner as to form distinguishable layers; or (c) by
superimposition of a plurality of preformed web.
(1) Note. Nonwoven web formation by a plurality of
adjacent, oppositely disposed condensers supplied from a
single supply source wherein the fibers collected thereon are
combined or merged into a single, coherent web at the nip
there-between, as double condenser cylinder machines, for
example, is excluded from this subclass. However, combining
of nonwoven unitary webs emerging from the nips of a
plurality of such multiple condensers is provided for
herein.
SEE OR SEARCH CLASS:
162, Paper Making and Fiber Liberation, 123 for processes
for producing multilayer water laid fibrous webs or sheets;
and subclasses 298+ for apparatus for application of plural
separate fiber streams to a foraminous forming surface.
264, Plastic and Nonmetalic Article Shaping or Treating:
Processes, 112 for forming stratified or layered nonwoven
webs by uniting randomly associated fibers as provided by
this class (264).
425, Plastic Article or Earthenware Shaping or Treating:
Apparatus, subclass 81.1 for air felting type shaping means
for forming stratified products combined with an operation of
this class (425).
Subclass:
303
With divided fiber stream or separate handling of trash or
fugitive fiber:
This subclass is indented under subclass 296. Method or
apparatus wherein (a) fibers are deposited on a fluid
permeable condenser by a gaseous stream which has several
paths of travel to the condenser; (b) stray fibers caught on
the outside of the condenser are returned to one of the air
streams for recirculation to the condenser; or (c) unwanted
material is removed from the apparatus.
(1) Note. The mere recitation that unwanted materials as
dirt, dust, and the like passes through the fluid permeable
condenser with the gaseous stream is insufficient to warrant
placement herein. The subject matter recited must specify
special provision for the separation of handling of the
unwanted material.
SEE OR SEARCH THIS CLASS, SUBCLASS:
64 for waste removal from the saws of a gin.
107 for waste, i.e., fugitive fiber recovery during a
carding operation.
200 for the removal of undesirable material from fibers
without otherwise working the fibers or assembling them into
a blend or structure.
218 for waste clearing during tuft combing of fibers.
245 and 262+, for removal of undesirable material during a
fiber drafting operation.
Subclass:
304
Fluid propelled to condenser:
This subclass is indented under subclass 296. Method or
apparatus wherein fibers are carried or conveyed in a gaseous
stream for accumulation, assembly, or collection in web form
upon a foraminous or perforate receiving surface or across a
fiber entrapment area formed by a plurality of spaced
receiving surfaces.
(1) Note. This group of subclasses is distinguished from
subclasses 202+ wherein a batt or sheet is formed and
subsequently disintegrated; the product of subclasses 304+ is
a permanent sheet, web, or batt.
SEE OR SEARCH THIS CLASS, SUBCLASS:
88 and 89, for combined picking, i.e., fiber liberation or
separation, cleaning, and fiber condensing.
148 for assembly of a fibrous article by screen condensing.
202 for combined fiber cleaning and condensing.
205 for conveying fibers in a fluid propelling current or
stream to a cleaning operation.
SEE OR SEARCH CLASS:
209, Classifying, Separating, and Assorting Solids, 12.1,
133+, and 250 for delivery of solid material suspended in a
fluid to sifters for purpose of this class (209).
264, Plastic and Nonmetallic Article Shaping or Treating:
Processes, 517 for vacuum deposition, collection, or
assembly of fibers to form a nonwoven web combined with an
operation of this class (264): and subclass 121 for
projecting fibers in a moving gas stream in the formation of
a nonwoven web by uniting randomly associated fibers as
provided for by this class (264).
406, Conveyors: Fluid Current, Appropriate subclasses for
mere entrainment and conveyance of fibers in a gaseous
medium.
Subclass:
305
With fiber liberation:
This subclass is indented under subclass 304. Method or
apparatus including the removal or separation of discrete
fibers, aggregates, or clumps thereof from a fibrous
accumulation in the form of a batt, mass, or web for
projection into the gaseous stream.
(1) Note. The liberation of fibers (a) from their natural
state, i.e, from seed; (b) from the surface of a serrated or
toothed cylinder on which the fibers repose in web form,
e.g., a carding or combing cylinder; or (c) from a batt or
mat thereof as by a eater, lickerin, picker, or the like is
included herein.
SEE OR SEARCH THIS CLASS, SUBCLASS:
.3 for liberating fibers from a continuous filament or yarn
by staplizing; and subclasses .51 and .56 wherein the
liberating or staplizing is combined with another operation,
inclusive of web formation.
1 for liberating fibers by mechanical means from the parts
with which they have been produced in nature.
80 for liberation or separation of fibers by blades or teeth
and cleaning.
98 for liberation or separation of fibers and carding.
SEE OR SEARCH CLASS:
156, Adhesive Bonding and Miscellaneous Chemical Manufacture,
subclass 62.4 for the formation of a nonwoven web with
formation or liberation of fibers combined with uniting of
the fibers of the web to each other and uniting of the lamina
thus formed to itself or another lamina.
162, Paper Making and Fiber Liberation, appropriate
subclasses for fiber liberation or separation involving some
chemical treatment whether or not combined with mechanical
treatment.
241, Solid Material Comminution or Disintegration, subclass 4
and 28 for processes of comminuting fibrous mineral material
and wood and similar natural fibrous vegetable material,
respectively; and subclasses 31+ for apparatus for
comminuting fibrous material including other treatments
combined therewith where such combinations are not otherwise
provided for.
264, Plastic and Nonmetallic Article Shaping or Treating:
Processes, 115 for methods of forming articles by uniting
randomly associated particles where the particles either are
formed or are liberated from a mass of previously formed
particles; and subclass 143 for the extrusion and staplizing
of a filament during the formation of a nonwoven web.
425, Plastic Article or Earthenware Shaping or Treating:
Apparatus, subclass 82.1 for air felting type shaping means
with fiber liberating means combined with an operation of
this class (425).
Subclass:
306
Gripping feed to fiber separator:
This subclass is indented under subclass 305. Method or
apparatus wherein the trailing portion of a forwardly moving
fibrous accumulation, batt, or mass is nipped or snubbed
while the leading portion is divided or separated by a
toothed or serrated moving member into discrete fibers,
aggregates, or clumps thereof for projection into the gaseous
stream.
SEE OR SEARCH THIS CLASS, SUBCLASS:
64.5 for feeding fibrous material to a ginning operation.
83 84, 86+, and 96, for gripping feed during fiber picking,
i.e., fiber liberation or separation and cleaning.
97.5 for feeding fibrous material to a picking operation.
105 for feeding fibrous material to a carding operation.
204 for feeding fibrous material to a cleaning operation.
Subclass:
307
Rotary condenser:
This subclass is indented under subclass 306. Method or
apparatus wherein the condenser comprises or includes a
foraminous or perforate revolving cylindrical member.
SEE OR SEARCH CLASS:
209, Classifying, Separating, and Assorting Solids, 285 for
hollow cylinder or drum sifters having means for delivering
material, inclusive of fibers, to the outside of the drums or
cylinders for undersized particles to be passed inside the
sifting walls and the oversize particles to be retained on
the outside.
Subclass:
308
Rotary condenser:
This subclass is indented under subclass 304. Method or
apparatus wherein the condenser comprises or includes a
foraminous or perforate revolving cylindrical member.
Information Products Division -- Contacts
Questions regarding this report should be directed to:
U.S. Patent and Trademark Office
Information Products Division
PK3- Suite 441
Washington, DC 20231
tel: (703) 306-2600
FAX: (703) 306-2737
email: oeip@uspto.gov
Last Modified: 6 October 2000