This class is a specific class under the broader class of Surgery
and includes methods directed to or including specific dental steps,
e.g., taking impressions of the teeth or gums, adapting a plate
or model to a particular mouth formation, mounting teeth on a plate
in a particular way, etc.; apparatus, implements, and devices relating
to the treatment of teeth or gums, or the replacement of teeth.
SECTION II - LINES WITH OTHER CLASSES AND WITHIN THIS CLASS
APPARATUS
Inasmuch as this class is defined in terms of specific rather
than proximate function, many of the apparatus provided for in this
class are also provided for broadly in the proximate function classes.
Unless otherwise stated, patents claiming such apparatus should
be classified as follows: patents with claims reciting structure peculiar
to dentistry should be placed as originals in Class 433. Use of
the functional adjective "dental" will not in
itself cause placement in Class 433. For example, "a dental
mirror comprising...", without further peculiar dental
structure recited is classified broadly with mirrors in Class 359,
Optics: Systems (Including Communication) and Elements (subclass
882 for a mirror with a handle). However, the recitation of means
to prevent fogging or accumulation of water from a drill dictates classification
in Class 433. Use of nouns peculiar to dentistry such as "a
dental handpiece..." or "an articulator comprising...",
will cause classification in Class 433. Apparatus and implements
classified in Class 433 are generally those of the type used by
a dentist. However, Class 433 will take a device which is disclosed
as being used by individuals upon their own teeth, if not provided for
elsewhere.
METHODS
Methods including steps normally performed by a dentist are
classified in Class 433. Methods for making prostheses and appliances
and which contain only those steps which are performed by a technician
(e.g., molding, die shaping, etc.) are classified in the appropriate manufacturing
class. Methods of treating a tooth by application of a named composition
are classified in Class 433 if more than the mere application to
a tooth is claimed (e.g., an additional step of drilling, cleaning, filling,
etc.).
PROSTHESES OR APPLIANCES
Class 433 will take claims to a dental prosthesis or appliance,
per se, unless claimed in terms of a particular composition or material
and no structural limitations are recited. Patents including a claim
to a composition, per se, are classified in the appropriate composition
class.
Metal Working,
subclasses 592+ for miscellaneous processes for making dental parts;
subclasses 426.1 for methods of disassembly; and subclasses 426.1+ for
methods of assembly.
Specialized Metallurgical Processes, Compositions
for Use Therein, Consolidated Metal Powder Compositions, and Loose
Metal Particulate Mixtures, appropriate subclasses for alloys for making and
filling teeth, and other dental prostheses.
Metal Founding, appropriate subclasses for apparatus and methods for casting
dental parts of metal. See particularly
subclass 376 for investment type molds.
Plastic and Nonmetallic Article Shaping or Treating:
Processes,
subclasses 16+ for processes of molding dental parts of material
other than metal, where a specific dental step is not recited.
X-Ray or Gamma Ray Systems or Devices, appropriate subclasses for X-ray sources, detectors,
and related apparatus, or methods of using such apparatus in dentistry
for producing images of teeth.
Chemical Apparatus and Process Disinfecting, Deodorizing,
Preserving, or Sterilizing, appropriate subclasses for processes for sterilizing
or disinfecting dental apparatus, and for apparatus for chemically
disinfecting or sterilizing dental implements.
Coating Processes,
subclasses 2.1+ for processes for making dental products comprising
a coating step (e.g., dental implements, dental prostheses, etc.).
Synthetic Resins or Natural Rubbers, appropriate subclasses, particularly Class 523,
subclasses 105+ for nonmedicated compositions containing a synthetic
resin having utility specifically intended to be for contact with
animal living tissue, especially subclasses 109 and 113- 120 for
dental compositions or to processes of preparing said compositions.
This subclass is indented under the class definition. Subject matter relating to the correction of malocclusions,
or the maintenance of desired position or alignment of natural teeth.
This subclass is indented under subclass 3. Apparatus comprising a hand manipulatable implement which
includes two elongated members pivotally connected intermediate
their lengths, each having cooperating work engaging jaw on one
side of the pivot and a handle portion on the opposite side of the
pivot.
This subclass is indented under subclass 2. Subject matter wherein a tooth is aligned or positioned
by a device which includes a member that is worn externally of the
mouth and places the device under tension.
This subclass is indented under subclass 2. Subject matter wherein a member which conforms in shape
to a patient"s teeth is worn over the teeth to complete
an orthodontic treatment or to correct mild malocclusions.
This subclass is indented under subclass 2. Subject matter wherein a tooth is positioned or aligned
by a device which includes two force applying surfaces movable in
divergent paths.
This subclass is indented under subclass 2. Subject matter relating to an orthodontic element adapted
to be fixed to a tooth and having means for rigidly connecting or
positioning an arch wire or similar force transmitting strand thereto.
This subclass is indented under subclass 8. Subject matter wherein the orthodontic element includes
means for rigidly connecting an arch wire or similar force transmitting
strand thereto.
This subclass is indented under subclass 10. Subject matter wherein the means for rigidly connecting
arch wire to the bracket includes an elastically yieldable retaining
means.
This subclass is indented under subclass 10. Subject matter wherein a threaded member is provided and
adapted to cooperate with threads formed on either the bracket or
an arch wire engaged therewith whereby rotation of the threaded
member causes a change in the tension of the arch wire.
This subclass is indented under subclass 10. Subject matter wherein the arch wire may be rigidly connected
to the bracket by a readily removable retaining element.
(1)
Note. The retaining element must be readily removable from
both the arch wire and the bracket.
This subclass is indented under subclass 13. Subject matter wherein the removable retaining element comprises
a rigid member which is substantially elongated relative to any
lateral dimension.
This subclass is indented under subclass 13. Subject matter wherein the removable retaining element comprises
a length of metallic strand which is adapted to be wrapped around
the arch wire and a portion of the bracket.
(1)
Note. Patent claiming brackets having structure for accommodating
ligature wire have been placed as originals in this subclass; i.e.,
the ligature wire need not be claimed.
This subclass is indented under subclass 8. Subject matter wherein the bracket includes a wire engaging
surface for locating or orienting the arch wire or similar force
transmitting strand with respect to the tooth carrying the bracket,
and either (a) the surface is adjustably carried by the bracket
whereby it may assume any of an plurality of positions with respect
to the bracket, or (b) the wire engaging surface forms an acute
angle with the plane of occlusion whereby the arch wire or strand
applies a torque to the tooth carrying the bracket.
This subclass is indented under subclass 8. Subject matter wherein the bracket includes an elongated
member having a passage therein through which the arch wire is placed.
This subclass is indented under subclass 2. Subject matter relating to either (a) a strandlike member
adapted to be secured to a bracket and placed under tension to apply
force to a tooth, or (b) a device adapted to engage two brackets or
teeth, or a bracket and arch wire, for creating a force between
a tooth and arch wire.
This subclass is indented under subclass 18. Subject matter wherein the strandlike member or the force
creating device is connected to a tooth on the maxillary arch and
to a tooth on the mandibular arch to transmit or apply a force between
the two teeth.
This subclass is indented under subclass 18. Subject matter relating to a metallic strandlike member
adapted to be secured to a bracket and placed under tension to apply
force to a tooth.
This subclass is indented under subclass 18. Subject matter comprising a device for creating a force
between two teeth or between a tooth and arch wire comprising a
metallic element of sufficient elastic property that it recovers
its original shape when released after being distorted.
This subclass is indented under subclass 2. Subject matter relating to an appliance element adapted
to be positioned around substantially the entire circumference of
a tooth for the purpose of securing a bracket thereto.
This subclass is indented under the class definition. Device or subcombination thereof for facilitating the replacement,
treatment, or testing of either natural or artificial teeth.
(1)
Note. The above apparatus do not remain in the patient"s
mouth after treatment.
(2)
Note. This and indented subclasses are intended to collect
patents to devices for performing specific dental steps (i.e., those
performed by a dentist). Devices of a more general nature (e.g.,
molds, forming dies, etc.) which are used by technicians are classified
elsewhere unless specifically provided for in this class (see search
notes below).
Metal Working,
subclasses 33+ and 650 for manufacturing apparatus which perform
two or more diverse operations (as in the manufacture of dental
prostheses); and subclasses 700+ for assembling and disassembling
apparatus.
Cutlery, appropriate subclasses for hand held cutting implements
in general. Class 433 will take cutting implements which are disclosed solely
for use by a dentist.
Plastic Article or Earthenware Shaping or Treating:
Apparatus,
subclass 2 for shaping means utilizing an anatomical body
or portion thereof; and subclasses 175+ for investment
molding apparatus.
Abrading, for abrading of dentures in a manufacturing or laboratory
operation. Abrading or polishing natural teeth or mutually abrading
upper and lower dentures is provided for in Class 433 (sole disclosure).
Surgery,
subclasses 79+ for orthopedic cutting instruments, subclass 116 for
cutting means for marking animals, subclass 132 for skin cutting dermatomes;
subclass 137 for cutting means used in animal sterilization, subclass
163 for cutting means used in debeaking or dehorning animals and subclasses
167+, for cutting instrument in general.
This subclass is indented under subclass 25. Apparatus comprising a common holder for displaying a plurality
of artificial teeth for the purpose of choosing the proper color,
shape, etc.
This subclass is indented under subclass 25. Device wherein means are provided for detecting the random
occurrence of a predetermined event and releasing, terminating,
or modifying a flow of energy which in turn either produces a perceptible
manifestation of the event, or regulates a control means (e.g.,
motor, valve, solenoid, etc.).
This subclass is indented under subclass 27. Apparatus including a holder for storing an implement, and
wherein removal or replacement of the implement on the holder activates or
regulates the controller.
This subclass is indented under subclass 25. Device including (a) means to increase the lighting intensity
at selected areas, or (b) means to bend or reflect light waves to
make characteristics of the device or work more readily discernable,
or (c) means from which electromagnetic radiation is directed at
the work.
Radiant Energy, appropriate subclass for X-ray sources, detectors
and related apparatus, or methods of using such apparatus in dentistry
for producing images of teeth.
Illumination, appropriate subclasses for lighting systems in general,
especially
subclasses 572+ and 577 for optic transmission fibers which modify
light from a man-made source.
Optics: Systems (Including Communication) and
Elements,
subclasses 838+ for mirrors in general, and dental mirrors without
structure peculiar to dental use.
This subclass is indented under subclass 25. Device provided with either (a) means to raise the temperature
of the device, work or environment, or (b) a conductor for establishing
electrical contact with the work.
X-Ray or Gamma Ray Systems or Devices,
subclasses 38+ , 168+, and 190+ for tables or
chairs for supporting persons for X-ray diagnosis, and having means
peculiar thereto.
This subclass is indented under subclass 25. Device comprising static structure for confining a settable
fluent material that is allowed to contact said structure and harden
into a specific contour.
Plastic Article or Earthenware Shaping or Treating:
Apparatus,
subclass 2 for shaping apparatus utilizing an anatomical body
or portion thereof as a shaping surface, and particularly subclasses
175+ for investment molding apparatus for dentures.
This subclass is indented under subclass 34. Device including either a supply means for the settable
fluent material or an orifice through which settable material is
introduced into the static structure.
Fluent Material Handling, With Receiver or Receiver
Coacting Means,
subclasses 311+ for filling means having a coacting receiver, other
than a molding apparatus.
Plastic Article or Earthenware Shaping or Treating:
Apparatus,
subclasses 447+ for molding apparatus including a shaping surface
and means feeding fluent stock thereto, see the collection to search
notes thereunder.
This subclass is indented under subclass 34. Apparatus wherein the static structure is placed in the
mouth of a patient to form a mold in conjunction with a surface
inside the patient"s mouth.
This subclass is indented under subclass 37. Apparatus wherein the surface of the static structure which
supports or contacts the settable fluent material comprises a thin
strip of pliant material supported in a relatively rigid construction.
This subclass is indented under subclass 37. Apparatus comprising a thin strip of material adapted to
be bent or flexed to define a mold cavity in conjunction with a
surface.
This subclass is indented under subclass 37. Apparatus wherein means are provided to vary the position
or orientation of a first portion of the static structure relative
to a second portion to accommodate different patients.
This subclass is indented under subclass 41. Apparatus wherein the first and second relatively movable
portions are adapted to form maxillary and mandibular casts of the
patient"s mouth.
This subclass is indented under subclass 41. Apparatus wherein the first and second portions are hingedly
attached to one another for swinging movement about an axis.
This subclass is indented under subclass 37. Apparatus including a dimensional reference or other means
to facilitate exact placement of the static structure inside the
patient"s mouth.
This subclass is indented under subclass 37. Device wherein means are provided to facilitate the putting
together or taking apart of the various elements of the static structure.
This subclass is indented under subclass 45. Apparatus wherein the static structure is provided with
a specific portion by which a person may grasp the structure, and
wherein the portion is readily removable from the remainder of the
structure.
This subclass is indented under subclass 37. Device wherein the static structure includes means specifically
provided to assist in separating the hardened fluent material from
either the static structure or the mouth of the patient.
This subclass is indented under subclass 25. Apparatus comprising means to sustain the weight of a workpiece
and which in turn is adapted to be supported on a surface external
to the patient.
(1)
Note. Tool and equipment supports are excluded from this subclass.
This subclass is indented under subclass 49. Apparatus provided with either (a) an implement to contact
and modify the workpiece being supported, or (b) structure adapted
to cooperate with an implement or secure an implement to the support.
This subclass is indented under subclass 50. Apparatus wherein the implement comprises a instrument which
is rotated or otherwise moved while in contact with the surface
of a workpiece to either (a) polish the surface or remove a portion
of the surface by reducing the surface to powder or small fragments,
or (b) penetrate the surface by a cutting edge or point.
This subclass is indented under subclass 49. Apparatus comprising a common support having a first work
carrying means for supporting a first workpiece and a second work
carrying means for supporting a second work part, at least one of
said work carrying means being movable on said common support toward
or away from the other of said work carrying means.
This subclass is indented under subclass 53. Apparatus wherein the first and second work carrying means
are specifically adapted to support maxillary and mandibular dental
casts, respectively, and wherein the relative movement between the
two work carrying means represents movement of the temporo-mandibular
joints, or subcombinations peculiar thereto.
This subclass is indented under subclass 54. Apparatus wherein the articulator includes a scale or other
markings which provide a visual reference to the position or movement
of the holder or a portion thereof.
This subclass is indented under subclass 54. Apparatus wherein the articulator includes either means
providing a dimensional or angular reference, or structure for removably
carrying such referencing means.
This subclass is indented under subclass 54. Apparatus wherein the relative movement between the first
and second work carrying means is governed by a joint which comprises a
fulcrum carried by one of said work carrying means and a cooperating
surface on the other of said work carrying means, wherein the fulcrum
pivots and translates relative to the cooperating surface.
This subclass is indented under subclass 54. Apparatus comprising a surface associated with one of the
work carrying means which cooperates with a guide pin or analogous
structure associated with the other of the work carrying means to
cause lateral movement between the two work carrying means as they approach
one another, and wherein said surface may be adjusted to assume
a selected angle or position with respect to a horizontal plane.
This subclass is indented under subclass 54. Apparatus wherein at least one of the first and second work
carrying means includes structure for fastening a dental cast thereto.
This subclass is indented under subclass 54. Apparatus wherein the work carrying means are connected
through a joint which allows relative swinging movement about an
axis through the joint, and wherein the joint in turn is also movable
relative to one of the work carrying means.
This subclass is indented under subclass 61. Apparatus wherein the joint is mounted for swinging movement
relative to one of the work carrying means about a second axis.
This subclass is indented under subclass 62. Apparatus wherein the joint is also capable of adjustable
movement in a straight-line fashion relative to one of the work
carrying means.
This subclass is indented under subclass 62. Apparatus wherein the joint comprises a spherical convex
surface mated with a concave surface to allow relative swinging
movement of the work carrying means in more than one plane.
This subclass is indented under subclass 61. Apparatus wherein the joint is mounted for rectilinear movement
along a second axis relative to one of said work carrying means.
This subclass is indented under subclass 54. Apparatus wherein the work carrying means are connected
through a joint which allows relative swinging movement between
the two work carrying means, and either (a) means are provided to
selectively allow or prevent relative swinging movement between
the two work carrying means, or (b) abutment means are provided
to limit the extent of relative movement of the work carrying means
about the joint, and wherein the abutment means is movable to vary
the relative positions of the work carrying means.
This subclass is indented under subclass 66. Apparatus wherein an adjustable abutment means is provided
at a greater radius from the joint than the work carrying means.
This subclass is indented under subclass 25. Apparatus including means to provide a representation of
the position or movement of the mandible, or of the positions or
alignment of a patient"s teeth.
This subclass is indented under subclass 68. Apparatus comprising means carrying a marking material which
is transferred by contact to the teeth of a patient when the patient
bites the material carrying means.
This subclass is indented under subclass 68. Apparatus comprising a relatively easily deformed material
or a holder therefor adapted to be contacted by the teeth of a patient
to provide a visual representation of the patient"s bite.
This subclass is indented under subclass 25. Apparatus including either (a) dimensional or angular reference,
or (b) a surface adapted to be contacted by another device (e.g.,
a tool) to govern the movement of the device.
This subclass is indented under subclass 72. Apparatus comprising means specifically provided for transferring
a dimension measured with respect to the temporo-mandibular joints.
This subclass is indented under subclass 72. Apparatus comprising either (a) an elongated member for
attachment to either an artificial tooth or base casting to ensure
proper positioning of the tooth on the base following removal therefrom,
or (b) a device for locating the member in the proper position on
the tooth or base prior to fixing the member thereto.
This subclass is indented under subclass 72. Apparatus including either (a) an implement to contact and
modify a workpiece, or (b) structure for cooperating with such an
implement or for securing such an implement to the dimensional or
angular reference means.
This subclass is indented under subclass 75. Apparatus wherein means are provided to guide a drill such
that the hole formed thereby will be parallel to an adjacent hole.
(1)
Note. Included herein are dental drills having plural parallel
drilling bits.
This subclass is indented under subclass 25. Apparatus comprising means for stowing or carrying dental
equipment or materials while they are not being used.
Supports: Cabinet Structure, appropriate subclasses for cabinet structure, per se, especially
subclass 209 for dental equipment cabinets. Class 433 takes
cabinets provided with specific dental equipment.
This subclass is indented under subclass 77. Apparatus comprising means for moving a length of flexible
conduit from an extended operable position to a stowed position.
This subclass is indented under subclass 77. Apparatus including an equipment support which is externally
attached to a supporting structure by means which allows relative movement
between the support and its supporting structure.
Dispensing, appropriate subclasses for dispensers in general.
See particularly the search notes in the class definition for other
classes having dispensers.
This subclass is indented under subclass 80. Apparatus wherein the discharge outlet is provided in structure
with either (a) includes a nondispensing means for contacting and
modifying the work, or a handle for removably carrying a work contacting
and modifying means or (b) is provided with means to connect the structure
to a work contacting and modifying means.
This subclass is indented under subclass 82. Apparatus wherein the means for contacting and modifying
the work comprises a surface for compressing the dispensed material
into the work.
This subclass is indented under subclass 82. Apparatus wherein the dispensed material is liquid or gaseous
and means are provided to regulate the flow through the discharge
outlet.
This subclass is indented under subclass 84. Apparatus wherein an activator for the flow regulating means
is located on or immediately adjacent to a portion of the device
that is adapted to be gripped by the operator"s hand while
the device is in use.
This subclass is indented under subclass 82. Apparatus wherein the work contacting means is caused to
vibrate by the prime mover at a very high frequency that is above
audibility limit of the human ear.
This subclass is indented under subclass 82. Apparatus wherein the structure having the discharge outlet
therein comprises a discrete device carried on the exterior of the
treating device.
This subclass is indented under subclass 80. Apparatus including means to direct a flow of fluid into
contact with the material to be dispensed so that the fluid entrains
or impels the material to carry or force the same into the patient"s
mouth.
This subclass is indented under subclass 80. Apparatus which is supported entirely by the hand of the
operator while being used and includes a reservoir for containing
the supply of material to be dispensed.
This subclass is indented under subclass 89. Apparatus including a pistonlike member movable through
either the reservoir or an additional chamber supplied from the
reservoir to expel the material contained in said reservoir or chamber
through the discharge outlet.
This subclass is indented under subclass 25. Apparatus including a nozzle at which a low pressure is
created to draw air or material through or around a nozzle.
This subclass is indented under subclass 91. Apparatus including either (a) means for creating subatomospheric
pressure at the nozzle, or (b) means for recovering and retaining
the removed material from the air current.
This subclass is indented under subclass 91. Apparatus wherein the nozzle is adapted to remove material
from the mouth of a patient and means are provided to either (a)
brace the patient"s mouth in an open position, (b) protect the
patient"s tongue or retain the tongue at the bottom of
the mouth, or (c) hold the cheek away from adjacent teeth.
This subclass is indented under subclass 25. Apparatus wherein means are provided by which an energy
flow or signal is initiated or modified to activate or otherwise
regulate a motor or other controller (e.g., valve, solenoid, etc.).
Miscellaneous Active Electrical Nonlinear Devices,
Circuits, and Systems, particularly
subclasses 518+ for miscellaneous control circuits which can be
used for handpieces or dental stands.
This subclass is indented under subclass 98. Apparatus wherein an actuator for the means which initiates
or modifies an energy flow or signal is carried on a hand-held device
which includes either means to drive or to transmit power to a tool
releasably secured thereto.
This subclass is indented under subclass 99. Apparatus wherein the means for initiating or modifying
an energy flow or signal comprises means for regulating the flow
of a fluid which operates or drives a controller.
This subclass is indented under subclass 98. Apparatus wherein an actuator for the means which initiates
or modifies an energy flow or signal is located near the floor and
adapted to be actuated by the foot of an operator.
This subclass is indented under subclass 25. Apparatus comprising an elongated member having serrations
or projections on the periphery thereof and adapted to be pulled
and pushed inside of a natural tooth.
This subclass is indented under subclass 25. Apparatus including either (a) a prime mover for driving
a work contacting and modifying means, or (b) dynamic power transmission means
between a prime mover and a work contacting and modifying means.
This subclass is indented under subclass 103. Apparatus wherein means are provided either (a) to apply
a substance between moving parts of the apparatus which are in contact
to reduce the friction therebetween, or (b) to carry heat away from
the apparatus.
(1)
Note. Apparatus which dispense the lubricating or cooling
liquid into the patient"s mouth will be found in the dispensing
subclasses above.
This subclass is indented under subclass 103. Apparatus including either (a) a selectively engageable
drive between the prime mover and tool, or (b) means to vary the
ratio of the speed of movement of the prime mover"s working member
to the speed of movement of the tool.
Cutting by Use of Rotating Axially Moving Tool,
subclasses 124+ and 139 for drilling apparatus having clutches
or variable speed transmissions, especially subclass 133 for plural
speed drives.
This subclass is indented under subclass 103. Apparatus including an elongated bracket for movably connecting
a tool or handpiece to a standard, wall or other support, and means
are provided to offset the moment or inertia of the tool at the
end of the bracket.
This subclass is indented under subclass 103. Device wherein the prime mover or power transmission means
is carried by either an adjustable floor supported columnar structure, an
adjustable elongated bracket or a hand-held tool chuck, and means
are provided to releasably hold or support the columnar structure, bracket,
or chuck in a predetermined position.
This subclass is indented under subclass 108. Apparatus wherein the columnar structure, bracket, or chuck
are swingably attached to an adjacent supporting structure to permit
swinging movement to the supported or held position.
This subclass is indented under subclass 103. Apparatus including a dynamic power transmission means which
comprises an endless flexible member to transmit rotary or oscillatory
motion from a prime mover to a tool.
Endless Belt Power Transmission Systems or Components, appropriate subclasses for an endless belt power transmission;
and particularly
subclasses 58+ for a system wherein a power output pulley is selectively shiftable
to different power output locations relative to an input pulley.
This subclass is indented under subclass 103. Apparatus including a dynamic power transmitting means comprising
an elongated member which is readily deformable in a direction perpendicular
to its length.
Rotary Shafts, Gudgeons, Housings, and Flexible
Couplings for Rotary Shafts, appropriate subclasses for flexible rotary shafts
used in torque transmission.
This subclass is indented under subclass 103. Apparatus including a swiveling or lever device adapted
to be depressed by the foot and which operates the drive for a tool.
This subclass is indented under subclass 103. Apparatus comprising either (a) a hand-held device having
a driven work contacting and modifying means, or (b) a hand-held
chuck for removably holding a driven work contacting and modifying
means.
This subclass is indented under subclass 114. Apparatus including a substance or member employed specifically
to block the passage of material into or out of the tool or handpiece.
This subclass is indented under subclass 114. Apparatus including means carried by the tool hand-held
or handpiece either to protect the tool or handpiece, or to protect
the patient or operator from contact with a tool.
This subclass is indented under subclass 114. Apparatus wherein the handpiece or hand tool includes means
to reduce the transmission of vibration or sudden forces along the
tool or handpiece.
Tool Driving or Impacting,
subclasses 210+ for impacting tools provided with cushioning means;
and subclass 162 for tool drive means in general provided with vibration dampening
means.
This subclass is indented under subclass 114. Apparatus wherein the prime mover or power transmission
means causes a work contacting surface of a tool driven thereby
to move back and forth along a straight-line or arcuate path.
This subclass is indented under subclass 118. Apparatus wherein the tool is vibrated at a very high frequency
that is above the audibility limit of the human ear.
This subclass is indented under subclass 118. Apparatus wherein the means to drive the tool comprises
structure which converts the energy of a working fluid into movement
of a working member to drive the tool.
Surgery: Kinesitherapy,
subclasses 46+ for fluid motor driven vibrations; and subclasses
88+, 96, and 105 for other kinesitherapeutic devices driven by
fluid motors.
This subclass is indented under subclass 118. Apparatus including a resilient member which alternately
stores and releases energy from the prime mover or power transmission
to drive the tool.
This subclass is indented under subclass 118. Apparatus comprising power transmission means which includes
a driven member having a surface which is so arranged about an axis
as to cause a cooperating member to be reciprocated to drive the
tool.
Machine Element or Mechanism,
subclasses 53 , 54, and 55+ for mechanical movements
of the rotary to or from reciprocating or oscillating type which
include a cam.
This subclass is indented under subclass 122. Apparatus including means whereby one of the following may
be varied: (a) the distance the tool travels during each reciprocation,
(b) the impact with which the tool strikes the work, or (c) the
orientation or attitude of the tool with respect to the hand engaged
portion of the device.
Tool Driving or Impacting,
subclass 115 for a tool driving hammer element wherein means
are provided to selectively vary the length of cyclic travel; and
subclass 120 for a spring driven tool driving hammer element wherein
means are provided to adjust the spring force.
This subclass is indented under subclass 118. Apparatus wherein the longitudinal axis of the handpiece
or the handle of the hand-held tool is angularly offset with respect
to the movement axis of the tool.
for a handpiece for driving a rotary tool wherein
the axis of rotation of a tool held therein is angularly offset with
respect to the longitudinal axis of the handle.
This subclass is indented under subclass 114. Apparatus including a driven work contacting or modifying
means adapted to either smooth a surface by friction or to reduce
a surface to powder or small fragments by a plurality of natural
cutting edges.
This subclass is indented under subclass 114. Apparatus wherein means are provided to facilitate the putting
together or taking apart of distinct elements of the apparatus.
This subclass is indented under subclass 127. Apparatus wherein the chuck includes a movable member adapted
to engage an indentation formed in the work contacting and modifying means
to retain the work contacting and modifying means in the chuck.
This subclass is indented under subclass 127. Apparatus wherein the means for releasably holding a working
contacting or modifying means comprises a plurality of gripping
elements adapted to grip the periphery of the work contacting and
modifying means by moving a member which surrounds said gripping
elements to urge them inwardly to grip the work contacting and modifying
means.
This subclass is indented under subclass 114. Apparatus wherein a joint is provided between the handle
and proximal end of the hand held-tool or handpiece which allows
the longitudinal axis of the work contacting and modifying means
to assume any one of the plurality of selected positions with respect
to the longitudinal axis of the handle.
This subclass is indented under subclass 114. Apparatus wherein the hand-held tool or handpiece is provided
with a prime mover to drive the work contacting and modifying means.
This subclass is indented under subclass 131. Apparatus wherein the prime mover comprises a disc or shaft
which is rotated about an axis by a current of fluid directed against
a series of reaction surfaces formed or carried on the disc or shaft.
Rotary Kinetic Fluid Motors or Pumps, appropriate subclasses for rotary fluid turbine motors,
per se. See particularly
subclass 904 for a tool drive turbine art collection.
This subclass is indented under subclass 114. Apparatus comprising an elongated handpiece having a longitudinal
axis angularly offset with respect to the longitudinal axis of the
tool.
This subclass is indented under subclass 103. Apparatus comprising a member having a first portion adapted
to be received in a motor driven chuck, and a second portion adapted
to releasably hold a tool bit.
This subclass is indented under subclass 134. Apparatus wherein the second portion adapted to releasably
hold a tool bit includes helically ribbed means adapted to be inserted
through an opening in the tool bit and rotated to secure the tool
bit to the arbor.
This subclass is indented under subclass 25. Apparatus including either (a) a piece of material adapted
to be placed inside the mouth to absorb fluids, or (b) means for
covering a tooth, mouth or other area of a patient to protect the
same against injury or debris, or (c) means to engage and retain
(a) or (b) in or adjacent the work area.
This subclass is indented under subclass 136. Apparatus including means readily separable from the absorption
or isolating means to removably attach or orient the absorption
or isolation means to the patient"s mouth.
This subclass is indented under subclass 138. Apparatus wherein the attaching means is adapted to be fastened
to a tooth inside the patient"s mouth.
(1)
Note. Patents reciting a clamp and any structure which recognizes
the presence of an absorption or isolating device have been placed
as originals in this subclass.
This subclass is indented under subclass 25. Apparatus comprising means to engage and retain either the
mandible cheek, lip, or tongue, in a desired position.
Tools, appropriate subclasses for hand tools of both general
purposes and specific application which are not provided for elsewhere.
Class 433 will take any hand tool wherein the sole disclosure is
for use by a dentist.
This subclass is indented under subclass 141. Apparatus including a work contacting and modifying means
adapted to either smooth a surface by friction or to reduce a surface
to powder or small fragments by a plurality of natural cutting edges.
This subclass is indented under subclass 144. Apparatus including structure (e.g., screw, lever, etc.)
by which the force input from the hand of the operator may be increased
at the cutter.
This subclass is indented under subclass 141. Apparatus wherein means are provided to facilitate the putting
together or taking apart of two or more distinct portions of the
implement.
This subclass is indented under subclass 146. Apparatus including a distinct work contacting and modifying
portion and means to facilitate the assembly and disassembly of
said portion and the remainder of the implement.
Metal Working,
subclass 239 for disassembly apparatus for spreading parts apart
or separating them from face to face engagement; and subclasses
244+ for other disassembly tools with force multiplying
operators.
This subclass is indented under subclass 148. Apparatus comprising a member having a tapering width and
which is forced in a directing parallel to the opposing faces of
two teeth to move the teeth.
Metal Working,
subclasses 254+ for assembly or disassembly tools with an impact
operator; and subclasses 275+ for those having a surface
adapted to receive a blow from a hammer.
This subclass is indented under subclass 150. Apparatus including a resilient member which stores energy
supplied by the hand of an operator, which energy is subsequently
released to impart a blow to the work.
Metal Working,
subclasses 244+ for disassembly tools having a force multiplier,
especially subclasses 264 and 281 for those having a screw-threaded work
engager.
This subclass is indented under subclass 141. Apparatus including a plurality members, each having a work
contacting face, and structure connecting the members which permits
relative displacement between the work contacting faces.
Tools,
subclasses 300+ for tools in general having jaws positioned by
relatively moving handles and subclass 487 for other hand-held tools
having a clamp.
This subclass is indented under subclass 153. Apparatus including three members, each having a work contacting
face and wherein the structure connecting the members permits each of
the work contacting faces to be displaced relative to the work contacting
faces.
(1)
Note. As an example, tooth or pin extractors having two clamping
jaws for engaging a tooth or pin and a pivoted fulcrum or other
member for engaging an adjacent area whereby a force is exerted
on the clamping jaws, are found in this subclass.
This subclass is indented under subclass 154. Apparatus wherein at least one of the members has an aperture
or slot through which a portion of the work may pass.
This subclass is indented under subclass 153. Apparatus wherein one of the work contacting faces has a
shape which is imparted to a workpiece by displacing the faces relative
to each other.
This subclass is indented under subclass 153. Apparatus wherein the structure connecting the members defines
a first pivot axis about which the work contacting faces on the
elongated members are adapted to swing.
This subclass is indented under subclass 157. Apparatus including an elongated helically ribbed member
which when rotated causes the work contacting face to pivot about
the bearing surface.
This subclass is indented under subclass 157. Apparatus comprising two elongated members pivotally connected
at points intermediate their length, each having a handle at one
side of the pivot and the work contacting face on the opposite side
of the pivot.
This subclass is indented under subclass 159. Apparatus wherein a second pivot is provided spaced from
the first pivot and which connects two elements of the apparatus
for relative swinging movement.
This subclass is indented under subclass 153. Apparatus including an elongated helically ribbed member
that when rotated moves the work contacting faces.
This subclass is indented under subclass 153. Apparatus wherein the work contacting faces are elastically
urged to a desired position after they are moved from said position.
This subclass is indented under subclass 141. Apparatus including a surface adapted to be pressed against
a filling in a tooth to compact the filling material.
This subclass is indented under subclass 25. Apparatus comprising a work contacting and modifying element
adapted to be received in a chuck or socket whereby the element
may be driven or manipulated.
Cutters, for Shaping, appropriate subclasses for work shaping tool in general
(other than wood); see especially
subclasses 53+ for face or end mill cutters.
This subclass is indented under subclass 165. Apparatus wherein the work contacting and modifying element
is adapted to either smooth a surface by friction or reduce a surface
to powder or small fragments by a plurality of natural cutting edges.
This subclass is indented under the class definition. Subject matter relating to artificial teeth.
(1)
Note. Utilization of an existing tooth or portion thereof
for purpose other than fastening adjacent artificial teeth is considered
repair rather than replacement.
(2)
Note. Methods for making dental prostheses are proper for
Class 433 if they include specific dental steps (e.g., impression
taking, fitting the patient with the denture, etc.). Generally,
those process claims which recite only manufacturing steps will
be classified in the appropriate manufacturing class (see search
notes below). A claim to a dental prosthesis, per se, is properly
classified in this class if significant structure is recited.
Electrolysis: Processes, Compositions Used Therein,
and Methods of Preparing the Compositions,
subclasses 67+ for electroforming methods for production of dentures.
Synthetic Resins or Natural Rubbers, appropriate subclasses, particularly Class 523,
subclasses 105+ for nonmedicated compositions containing a synthetic
resin having utility specifically intended to be for contact with animal
living tissue, especially subclasses 109 and 113-120 for dental compositions
or to processes of preparing said compositions.
This subclass is indented under subclass 167. Subject matter relating to the provision of a soft layer
or pad of material on the mouth contacting surface of a denture.
Synthetic Resins or Natural Rubbers,
subclass 120 for a dentures plate liner specified only in terms
of a composition of the type there provided for. (See Lines With
Other Classes under the main definition of Class 433 for the general
line.)
This subclass is indented under subclass 167. Subject matter wherein a denture includes means to redirect
or absorb forces during mastication to protect the denture from
damage.
This subclass is indented under subclass 169. Subject matter including means to secure the denture in
the mouth, which comprises opposing surfaces which are elastically
urged against opposing exterior surfaces of an abutment tooth, and
wherein the means to redirect or absorb mastication forces forms
the connection between the denture and securing means.
This subclass is indented under subclass 167. Subject matter relating to locating or securing one or more
artificial teeth in the mouth.
(1)
Note. Patents in this subclass must relate to the connection
between a denture and either a natural tooth or some part of the patient"s
mouth. Patents relating to the connection between a denture and
an artificial tooth will be found in subclasses below.
This subclass is indented under subclass 173. Subject matter wherein the lower portion of the denture
that is secured to the jawbone is shaped to correspond to the configuration
of the root of a natural tooth which had previously occupied the
same position in the mouth.
This subclass is indented under subclass 173. Subject matter wherein the denture is secured to the jawbone
by a flat platelike member extending from the bottom of an artificial tooth.
This subclass is indented under subclass 172. Subject matter wherein denture is secured or located in
the patient"s mouth by means which includes a member that
must be deformed elastically when applying the denture to the mouth.
This subclass is indented under subclass 177. Subject matter wherein the locating or securing means includes
opposing surfaces which are elastically urged against opposing exterior
surfaces of a natural or artificial tooth.
This subclass is indented under subclass 177. Subject matter wherein the elastically deformable means
from a connection between an upper denture and a lower denture to
bias them away from each other.
This subclass is indented under subclass 172. Subject matter wherein a denture is secured in the patient"s
mouth by a settable fluent material or other binding substance.
Synthetic Resins or Natural Rubbers, especially Class 523,
subclasses 116+ for a composition containing a synthetic resin
used as a cement or a filling; and subclass 120 for a composition
to be used as a denture plate, adhesive, denture plate liner, or a
denture plate cushion.
This subclass is indented under subclass 180. Subject matter wherein the denture is secured to a natural
tooth by a settable fluent material and the denture and the natural
tooth are provided with respective elements which cooperatively
engage each other to supplement or reinforce the settable material
bond.
This subclass is indented under subclass 181. Subject matter wherein a third discrete element is provided
for securing together the respective elements on the denture and
natural tooth.
This subclass is indented under subclass 180. Subject matter wherein the denture has attached thereto
a simulation of the exposed portion of a tooth, and the denture
is secured in the mouth of fixing the simulation to the base of
an existing natural tooth using a settable adhesive material.
This subclass is indented under subclass 172. Subject matter wherein the denture is provided with means
engaging a natural surface inside the mouth to form a chamber therewith,
which chamber is placed under subatmospheric pressure to secure
the denture in the mouth.
This subclass is indented under subclass 184. Subject matter wherein means are provided to selectively
establish communication between the suction chamber and the environment.
This subclass is indented under subclass 184. Subject matter wherein the means which engages a natural
surface inside the mouth comprises a concave or flat, substantially rounded
pliant member carried by but distinct from the base of the denture.
This subclass is indented under subclass 184. Subject matter wherein the chamber is formed by a natural
surface inside the mouth and an indentation formed in the denture
base.
This subclass is indented under subclass 172. Subject matter wherein a denture is secured in the mouth
of the patient by magnetic attraction between material carried by
the denture and material inside the mouth.
This subclass is indented under subclass 167. Subject matter relating to a connector for joining spaced
bilateral parts of a maxillary or mandibular removable partial denture.
This subclass is indented under subclass 167. Subject matter relating to the connection between an artificial
tooth and an intra-oral common support for a plurality of teeth,
or between two adjacent artificial teeth.
for subject matter relating to the connection between
a tooth facing and backing wherein the backing may be connected
to an adjacent backing to form a bridge.
This subclass is indented under subclass 191. Subject matter wherein an artificial tooth having a hole
or other indentation in surface is united to a common support for
a plurality of such teeth by causing a portion of the support material
to flow into the indentation and then harden.
This subclass is indented under subclass 191. Subject matter wherein an individually distinct device forms
the connection between an artificial tooth and a common support
for a plurality of such teeth.
(1)
Note. A metallic pin embedded in a porcelain facing and attached
to the base is considered to be "individually distinct" as
defined above. However, for the pin-to-facing connection, per se,
see the search note below to subclasses 206+.
This subclass is indented under subclass 193. Subject matter wherein a second device which is individually
distinct from the tooth, base, and connecting member forms the connection between
the tooth and the connecting member.
This subclass is indented under subclass 193. Subject matter wherein the individually distinct device
which forms the connection between an artificial tooth and support
is fixed to the material of the support by either forming the support material
about the connecting device or by driving the connecting device
into the support material.
This subclass is indented under subclass 167. Subject matter relating to the determination of the precise
location and attitude of an artificial tooth with respect to another
artificial or natural tooth.
This subclass is indented under subclass 167. Subject matter relating to the profile or relative position
or configuration of a masticating edge or surface of an artificial
tooth.
This subclass is indented under subclass 167. Subject matter relating to the particular structure of a
intraoral common support for a plurality of artificial teeth.
Compositions: Coating or Plastic,
subclass 35 for dental plastic or coating compositions wherein
no significant denture structure is recited in the claims (i.e.,
the denture is only nominally recited).
Synthetic Resins or Natural Rubbers, particularly Class 523,
subclasses 115+ for a composition containing a synthetic resin
for use as a tooth or bone replacement, restorative, or implant
or to processes or preparing said composition. (See Prostheses Or Appliances
under the main definition of Class 433 for the line.)
This subclass is indented under subclass 167. Subject matter relating to either the structure or a process
of making a dental prosthesis which is adapted to be fixed to the
jawbone.
Synthetic Resins or Natural Rubbers, particularly Class 523,
subclasses 115+ for a composition containing a synthetic resin
suitable for use as a tooth or bone replacement, restorative, or
implant, or to processes of preparing said composition. (See Prostheses
Or Appliances of the main definition of Class 433.)
This subclass is indented under subclass 167. Subject matter relating to either the structure of or a
process of adapted to be fixed to a base or an adjacent natural
or artificial tooth.
Compositions: Coating or Plastic,
subclass 35 for dental plastic or coating composition wherein
no significant structure is recited (i.e., a tooth is only nominally
recited).
Synthetic Resins or Natural Rubbers, particularly Class 523,
subclasses 115+ for a composition containing a synthetic resin
for use as a tooth or bone replacement, restorative, or implant
or to processes of preparing said composition. (See Prostheses Or Appliances
of the main definition Class 433.)
This subclass is indented under subclass 202.1. Subject matter relating to either (1) the provision of markings
on the surface of the artificial tooth by which is may be identified,
or (2) the hue or relative lightness of an artificial tooth to tooth
portion.
Plastic and Nonmetallic Article Shaping or Treating:
Processes,
subclass 20 for shaping or treating a tooth and providing a
color or tone differential across the member. Class 433 provides
for patents claiming the tooth itself.
This subclass is indented under subclass 202.1. Subject matter wherein the artificial tooth comprises two
discrete portions, the connection between the portions being of
such a nature to permit one portion to be readily removed from the
remaining portion for repair or replacement.
(1)
Note. The two "tooth portions" may comprise
a porcelain facing and metallic backing.
This subclass is indented under subclass 202.1. Subject matter wherein the artificial tooth comprises either
(a) a tooth facing and a plurality of adjacent plate sections attached
to the facing, or (b) a plurality of discrete tooth portions mechanically
fastened together by means individually distinct from either tooth
portion.
This subclass is indented under subclass 206. Subject matter relating to a plate or other covering formed
of metal and adapted to be secured to the inside surface of an artificial tooth
facing.
This subclass is indented under subclass 208. Subject matter wherein the backing is provided with a protruding
portion provided with an enlargement at its distal end having a
cross sectional shape of a dovetail, "T", pinhead,
or bulb, the enlargement being placed in a correspondingly shaped
recess in the tooth facing to unite the tooth facing and backing.
This subclass is indented under subclass 208. Subject matter wherein the backing is provided with a protruding
portion adapted to be inserted into the tooth facing, and wherein
the protruding portion is substantially elongated in a direction
away from the backing relative to any lateral dimension of the portion.
This subclass is indented under subclass 206. Subject matter wherein the artificial tooth has fixed thereto
a metallic pin adapted to secure the tooth to a base or backing.
(1)
Note. This subclass contains subject matter relating to tooth
facing to pin connections and connecting pin structure, per se.
This subclass is indented under subclass 202.1. Subject matter wherein the artificial tooth comprises two
distinct portions, each formed of a different nonmetallic material.
(1)
Note. See Prostheses Or Appliances in the main definition
for the line with Chemical Composition Classes.
This subclass is indented under subclass 167. Subject matter relating to the formation or use of a positive
likeness of part of the oral cavity for the purpose of constructing
a finished dental prosthesis.
Plastic and Nonmetallic Article Shaping or Treating:
Processes,
subclasses 16+ for processes by which dentures or teeth are formed
which do not include specific dental steps (e.g., impression taking,
articulation, try-in, etc.).
This subclass is indented under subclass 167. Subject matter relating to the formation or use of either
(a) an imprint or negative likeness of a part of the dental cavity,
or (b) a visual record indicating the occlusal relationship of a patient"s
teeth.
Synthetic Resins or Natural Rubbers, particularly Class 523,
subclass 109 for a composition containing a synthetic resin
wherein said composition is useful in taking impressions of the mouth
or to processes of preparing said composition.
METHOD OR MATERIAL FOR TESTING, TREATING, RESTORING, OR REMOVING
NATURAL TEETH:
This subclass is indented under the class definition. Subject matter comprising either (a) a step of removing,
repairing, testing, or prophylactically treating a natural tooth,
or (b) a device which is employed in the restoration or treatment
of a natural tooth and which remains in the patient"s mouth.
Drug, Bio-Affecting and Body Treating Compositions, appropriate subclasses for treating compositions,
per se, and methods involving no more than the application of a
Class 424 composition.
This subclass is indented under subclass 215. Subject matter relating to either (1) a device or material
applied to a natural tooth to form an intermediate layer between
the tooth and a filling, crown, etc., to be applied to the tooth,
or (2) any treating or protective material that is applied to the
teeth to form a film thereon.
Compositions: Coating or Plastic,
subclass 35 for a protective coating composition, per se, adapted
to be applied to a tooth to form a structural barrier thereon.
This subclass is indented under subclass 215. Subject matter relating to a simulation of the exposed portion
of a natural tooth adapted to be attached to and carried by the
remainder of the natural tooth.
(1)
Note. Crowns having artificial teeth fixed thereto which are
not carried on portions of natural teeth are considered to be prosthodontic
devices and are excluded from this subclass.
This subclass is indented under subclass 218. Subject matter comprising a step or means for securing a
prosthetic crown to a natural tooth or to a prosthesis carried on
an adjacent natural tooth.
This subclass is indented under subclass 219. Subject matter wherein the crown is secured or positioned
on the natural tooth by an elongated member extending vertically
into both the crown and the natural tooth.
for method or means for securing a connecting pin
to an artificial tooth facing, the connecting pin adapted to be
used to fasten the tooth to a backing or plate.
This subclass is indented under subclass 220. Subject matter wherein the periphery of the elongated member
is formed with one or more elongated crests or flutes.
(1)
Note. Threaded posts are included in this subclass.
This subclass is indented under subclass 218. Process including a step in the formation of the crown.
(1)
Note. Methods for fabricating dental crowns are classified
in Class 433 only if they include specific dental steps (e.g., taking
an impression of the prepared tooth, fitting the crown on the tooth, etc.).
Process claims reciting only manufacturing or forming steps should
be classified in the appropriate manufacturing or treatment class.
This subclass is indented under subclass 215. Subject matter relating to the use of an elongated member
which is fixed to a tooth at an area where the tooth is to be filled
to secure the filling to the tooth.
This subclass is indented under subclass 215. Subject matter relating to repair of a tooth by either (a)
applying and shaping material on the crown portion of a tooth, or
(b) employing a hardenable fluent material to bond a dental restoration
to a natural tooth.
Compositions: Coating or Plastic,
subclass 35 for dental cements, per se, and see Prostheses
Or Appliances in the main definition of Class 433 for the line.
Alloys or Metallic Compositions,
subclasses 526+ for an amalgam, per se, and see Prostheses Or Appliances in
the main definition for Class 433 for the line.
Synthetic Resins or Natural Rubbers, particularly Class 523,
subclasses 116+ for a composition containing a synthetic resin
used as a cement or filling or to processes of preparing said composition.
(See Prostheses Or Appliances in the main definition of Class 433.)
Note: The Patent
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