Manual of U.S. Patent Classification
as of June 30, 2000

Class
241
SOLID MATERIAL COMMINUTION OR DISINTEGRATION

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Subclass definitions may be accessed by clicking on the subclass number, below.

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Subclass		Title
ClassTitle		===> SOLID MATERIAL COMMINUTION OR DISINTEGRATION
		PROCESSES
1		. By operations other than force of contact with solid surface
2		. With cell rupturing or liberation of contained liquids
3		. With solidifying, consolidating or shaping
4		. Laminated or fibrous mineral material
5		. By utilizing kinetic energy of projected or suspended material
6		. Cereal and other seeds or seed parts
7		. . With operation to detach or loosen adhering hull portion
8		. . With application of fluid to, or heating or cooling of, whole seed
9		. . With separation or classification
10		. . . With recombination or recirculation of separated parts
11		. . . Successive alternate separation and comminution steps
12		. . With application of fluid
13		. . Plural successive comminuting operations
14		. Selective or differential comminution of mixed or bonded solids
15		. With application of fluid or lubricant material
16		. . To aid dispersion or prevent chemical reaction, deliquescence, agglomeration or frothing
17		. . With additional heating or cooling
18		. . Gas or vapor
19		. . . To classify or separate material
20		. . Liquids added to classify or separate material
21		. . Liquids added to make pulp or suspension
22		. Application of solids to material
23		. With heating or cooling of material
24.1		. With classifying or separating of material
24.11		. . Including separating liquid from solid
24.12		. . Of plural, diverse materials
24.13		. . . Including metal
24.14		. . . . Magnetically , electrostatically, or by use of eddy currents
24.15		. . . . Sorting by use of sieve
24.16		. . . Including food
24.17		. . . Including rubber
24.18		. . . Including plastic
24.19		. . . Including fibrous material, e.g., paper
24.2		. . . . Wood or bark
24.21		. . . . Sorting by use of sieve
24.22		. . . Including glass
24.23		. . . Including clay
24.24		. . . Including coal
24.25		. . Of metal
24.26		. . Of food
24.27		. . Of rubber
24.28		. . Of plastic
24.29		. . Of fibrous material
24.3		. . Of glass
24.31		. . Of coal
25		. Combined
26		. By contact between relatively moving portions of material
27		. Subjecting material to impact by moving comminuting surface
28		. Wood and similar natural-fibrous vegetable material
29		. Plural successive comminuting operations
30		. Miscellaneous
		APPARATUS
31		. With explosion preventing or relieving means
32		. With overload release means
32.5		. With sink drain stopper interlock
33		. With automatic control
34		. . Of feed of material
35		. . . By speed or torque of comminutor drive
36		. . Of comminutor drive
37		. . Of comminuting surface contiguity
37.5		. With means to protect operator from injury
38		. Including means applying fluid to material
39		. . Fluid comminutor type
40		. . . Stationary abutment impact only
41		. . Plural fluid applying means on same material
42		. . . With plural comminuting zones
43		. . With plural comminuting zones
44		. . . Parallel material flow type
45		. . . Horizontal fluid current past successive comminuting zone
46.01		. . Liquid submerged comminuting zone
46.012		. . . Combined with dishwasher
46.013		. . . Under-sink garbage disposal
46.014		. . . . Having particular housing structure
46.015		. . . . . Provision to mount to sink
46.016		. . . . . Inlet provision
46.017		. . . Striker having vertical axis
46.02		. . . With material feed means
46.04		. . . Including adjustable component
46.06		. . . By cooperating members
46.08		. . . . Including centrifugally driven striking member (i.e., hammer mill)
46.11		. . . . Including impeller-type agitating means
46.13		. . . . Reciprocating or oscillating
46.15		. . . . Including roller or roller-like member (e.g., ball, cylinder, etc.)
46.17		. . . By rotating impeller-type agitating means
47		. . Gas swept comminuting zone
48		. . . With recirculation of gas to comminuting zone
49		. . . Gas borne material applied to screen
50		. . . . Elevating fan on comminutor shaft
51		. . . . Screen forms part of comminuting surface
52		. . . With return of removed oversize material to comminuting zone
53		. . . . Suction applied above and coaxially of comminuting member or members
54		. . . Horizontal gas current though rotary drum
55		. . . Comminuting element or comminuting element attached, gas moving means
56		. . . Gas moving means and rotary comminuting element on same shaft
57		. . . Local application within comminuting zone
58		. . . Suction applied above and coaxially of comminuting member or members
59		. . . With non-automatic gas flow control means
60		. . Applied subsequently to comminuting
61		. . . With recirculation of material to comminuting zone
62		. . Applied prior to comminuting
63		. With simultaneous control of interrelated feed, drive and/or surface positioning means
64		. . Control of feed and surface positioning means only
65		. With temperature modification of material
66		. . Temperature modification of comminuting member
67		. . . Thermal fluid within or carried by moving comminuting member
68		. With separation or classification of material
69		. . Comminuted material discharge permitting screen
70		. . . Screen partition or end wall in rotary drum
71		. . . . Plural partitions or end walls
72		. . . . . Series flow of material
73		. . . Arcuate screen concentric with rotary comminuting member
74		. . . Annular screen above or surrounding comminuting zone
75		. . Parallel material flow through plural comminuting zones and/or separators
76		. . Series material flow only through plural alternate comminuting zones and separators
77		. . Comminuting zone interposed between plural separators
78		. . Separator interposed between plural comminuting zones
79		. . Separator in discharge from comminuting zone
79.1		. . . By adhesion, electric field force, specific gravity, or chemical change
79.2		. . . Rotating comminutor combined with a sifting device
79.3		. . . . Sifting device rotates
80		. . . Oversize return to comminuting zone
81		. . Separator in feed to comminuting zone
82		. Projected material trap chamber
82.1		. Helical pusher inside tube moves material toward perforated member
82.2		. . With means to vary particle coarseness
82.3		. . Wherein the perforated member is other than flat
82.4		. . With series of axially aligned rotary knife blades
82.5		. . With rotary knife before member
82.6		. . . Tube having configured interior surface
82.7		. . With rotary knife after member
83		. Comminuting surface provided with openings to permit discharge of material
84		. . Cooperates with moving comminuting surface or member
84.1		. . . Loose cylinder or sphere
84.2		. . . Travelling roll surface or member
84.3		. . . Oscillating surface or member
84.4		. . . Rectilinearly reciprocating surface or member cooperates with rotary comminuting member
85		. . . Rotary comminuting surface having openings cooperates with moving surface
86		. . . Cooperates with rotary comminuting member
86.1		. . . . Material thrown against perforated surface by centrifugal force
86.2		. . . . Comminutor mounted for movement relative to rotating support member
87		. . . . Screen or screen elements move during comminution
87.1		. . . . Offset fingers on stationary surface and on rotary member
88		. . . . Provided with special comminuting surfaces or characteristics
88.1		. . . . . Perforation bounded by sharp edge
88.2		. . . . . And auxiliary imperforate surface (e.g., breakerplate)
88.3		. . . . . . Three or more serially acting alternate perforate and imperforate surfaces
88.4		. . . . . Spaced parallel bars (e.g., "grate")
89		. . . . Hinged or dumping type screen or support
89.1		. . . . With means to change or adjust comminuting position of screen or screen element
89.2		. . . . Removable or interchangeable screen or screen portion
89.3		. . . . Stationary concave surface
89.4		. . . . Stationary flat circular surface
91		. . Rotating comminuting surface having openings
92		. . . Radial comminuting face
93		. . . Outer peripheral comminuting face
94		. . Reciprocal comminuting surface having openings
95		. . Stationary comminuting surface having openings
96		. Oversize rejection by comminuting surface
97		. With recirculation of material to comminuting zone
98		. With agitator
99		. Bottle breakers
100		. With independent removable or detachable material receiver or receiver engaging means
101.01		. Combined or convertible
101.1		. . Convertible to non-comminuting apparatus
101.2		. . Combined with non-comminuting means
101.3		. . . With means to indicate condition of apparatus, work or product
101.4		. . . Prior shaping means (e.g., quartering)
101.5		. . . With material handling other than to or from comminuting zone
101.6		. . . . And means to mix plural materials
101.71		. . . With support vehicle
101.72		. . . . Having extendable, comminutor-supporting arm
101.73		. . . . . Reciprocating surface-type comminutor
101.74		. . . . Self-propelled vehicle
101.741		. . . . . Refuse support vehicle
101.742		. . . . . Self-loading from ground
101.75		. . . . Detachable from propelling vehicle
101.76		. . . . . From rear
101.761		. . . . . . Tub grinder
101.762		. . . . . . Operated while propelled
101.763		. . . . . . . Self-loading from ground
101.77		. . . . . From front
101.78		. . . . Manually propelled
101.8		. . . With mixer
102		. Comminuting surface deformable by contact with material
103		. Rolls frictionally driven and supported by relatively moving surfaces (e.g., ball chasers)
104		. . With additional diverse type of comminutor
105		. . Plural comminuting zones
106		. . Frictional drive surface on horizontal axis
107		. Plural rotary or oscillatory surfaces cooperate with common surface (e.g., chasing mills)
108		. . With additional diverse type of comminutor
109		. . With material feeding mechanism or control
110		. . Plural surfaces move across common surface
111		. . Outer peripheral contact of common surface by plural surfaces
112		. . . With surface cleaner or scraper
113		. . Plural surface cooperate with each other
114		. . Radial faces of plural rotary surfaces cooperate with common surface
115		. . Plural sets of plural surfaces cooperating with plural common surfaces
116		. . . Coaxial rotors radially arranges on same side or common surface axis
117		. . Common surface moves during comminution
118		. . . With planetary movement of plural surfaces
119		. . . With material moving or discharge means
120		. . . Positively driven plural surfaces
121		. . . Plural surfaces forcible away from common surface
122		. . . . Common surface rotates on horizontal axis
123		. . Planetary movement of plural surfaces
124		. . . With material moving or discharge means
125		. . . Compounded planetary movement
126		. . . Positively driven plural surfaces
127		. . . Forcible away from common surface
128		. . . . Pivotally mounted for forced movement
129		. . . . . Centrifugally urged toward contact
130		. . . . . . With centrifugal force modifying means
131		. . . . Centrifugally urged toward contact
132		. . . . With means in addition to weight of plural surfaces for urging surfaces toward contact
133		. . . . Rotors independently forcible away from common surface
134		. Parallel material flow through plural comminuting zones
135		. . With unitary or interconnected feed mechanisms or controls for plural zones
136		. . . Interconnected means forcing material against moving comminuting surface or surfaces
137		. . All comminuting zones of loose grinding body type
138		. . All comminuting zones of rotary striking member type
139		. . All comminuting zones of cooperating surface type
140		. . . All comminuting zones of compound movement type
141		. . . All comminuting zones of rotary surface type
142		. . . . Circumferential or tangential material flow only
143		. . . . . All cooperating surfaces rotate
144		. . . . . . Rotary surfaces of separate zones coaxial
145		. . . . . . Simultaneous adjusting or positioning of separate surfaces
146		. . . . Axial or radial material flow only
147		. . . All comminuting zones of reciprocating surface type
148		. . . . Oscillating surface
149		. . . . Vertical rectilinear movement
150		. . . . . Annularly mounted moving surfaces
151		. . All comminuting zones of single surface zones
152.1		. Series material flow only through plural comminuting zones
152.2		. . Diverse type comminuting zones
153		. . All comminuting zones of loose grinding body type
154		. . All comminuting zones of rotary striking member type
155		. . All comminuting zones of cooperating surface type
156		. . . All comminuting zones of compound movement type
157		. . . All comminuting zones of rotary surface type
158		. . . . Circumferential or tangential material flow only
159		. . . . . All cooperating surfaces rotate
160		. . . . . One surface of each couple nonrotary
161		. . . . Axial or radial material flow only
162		. . . . . Common axis of rotation
163		. . . . . . Horizontal axis
164		. . . All comminuting zones of reciprocating surface type
165		. . . . Vertical rectilinear movement
165.5		. . All comminuting zones of rotating noncooperating type
166		. With comminuting member cleaner or scraper
167		. . Contacting working surfaces of rotary comminuting member
168		. Hand support comminutor
169		. . Reciprocating cooperating comminuting surfaces
169.1		. . Rotary tool
169.2		. . Masher or pestle
170		. Loose grinding body comminutor (e.g., ball or rod mills)
171		. . With feed and/or discharge
172		. . With independent means moving or guiding the material and/or grinding bodies in receptacle
173		. . . Rotary grinding body pusher (e.g., ball chasers)
174		. . . . Horizontal axis
175		. . Compound movement receptacle
176		. . Rotating receptacle
177		. . . Tiltable axis of rotation
178		. . . Roller supported receptacle
179		. . Receptacle structure
180		. . . With non-axial opening
181		. . . With lifting or distributing at extremity of receptacle
182		. . . With lining
183		. . . . With lifting or distributing characteristics
184		. . Grinding bodies
185.5		. Rotary striking member with feed or discharge conveyor or regulator
185.6		. . Rotary striking member combined with pump
186.1		. . With distinct plural paths to striking member
186.2		. . Feed or discharge regulator
186.3		. . . Including means to alter direction of flow
186.35		. . Endless loop feed or discharge conveyor
186.4		. . Rotating or oscillating feed or discharge conveyor
186.5		. . . Screw feed or discharge conveyor
187		. Rotary striking member with moving cooperating surface or member
188.1		. Rotary striking member with axial or radial flow of material
188.2		. . Radial flow, pin-disc comminutor, overlapping pins on cooperating members
189.1		. Rotary striking member with circumferential or tangential flow
189.2		. . Reversible rotary mill
190		. . . With intermeshing impact members
191		. Rotary striking member, rotor structure
192		. . With striking member adjusting means
193		. . With loosely mounted striking member
194		. . Striking member pivoted to rotor
195		. Rotary striking member or hammer
196		. . Loose ring type
197		. . With attached wear member
198.1		. Cooperating comminuting surfaces (e.g., jaw crusher)
199		. . Batch type (e.g., mortar and pestle)
199.1		. . . With means to move batch container or support
199.2		. . . . Intermittent movement of support interrelated with movement of cutter or knife
199.3		. . . . . Rectilinearly reciprocating knife
199.4		. . . . . Rocking knife
199.5		. . . . Uni-directional movement of support
199.6		. . . . . With means to feed or discharge batch
199.7		. . . . . With revolving tool
199.8		. . . . . With rectilinear reciprocating tool
199.9		. . . Stationary container or support
199.11		. . . . With rectilinear reciprocating tool
199.12		. . . . With rotary tool
200		. . Endless belt type comminuting surface or surfaces
201		. . Compound movement comminuting surface or surfaces
202		. . . With feeding and/or discharging mechanism or control
203		. . . Rotary component
204		. . . . Circumferential or tangential flow of material
205		. . . . Rotating and reciprocating surface
206		. . . . With moving cooperating surface
207		. . . . Gyratory or planetary movement
208		. . . . . Eccentric drive sleeve within gyratory member
209		. . . . . With upper guide or support for gyratory member
210		. . . . . . Unbalanced weight drive
211		. . . . . . Gyratory member yieldinly mounted
212		. . . . . . Upper gyratory drive
213		. . . . . . Bottom shaft adjusting means
214		. . . . . Eccentric shaft gyratory drive
215		. . . . . Eccentric gyratory sleeve below gyratory member
216		. . . . . With gyratory member sealing means
217		. . . Unitary comminuting member and eccentric strap
218		. . . . With moving cooperating surface
219		. . . Comminuting member pivoted to oscillating supporting link
220		. . Rotary surface (or surfaces)
221		. . . Circumferential or tangential flow of material (e.g., roll mills or roll and concave mills)
222		. . . . With material feed and/or discharge mechanism or control
223		. . . . . Endless belt conveyer
224		. . . . . Hopper
225		. . . . . . With roll or rotary material agitator
226		. . . . With material retaining means at axial end of rotary surface
227		. . . . Both cooperating surfaces rotate (e.g., roll mills)
228		. . . . . Internal comminuting surface
229		. . . . . Surfaces rotate in same direction and/or mounted on non-horizontal axis
230		. . . . . Adjustably or yieldably mounted rotary surface
231		. . . . . . Hydraulic or pneumatic mounting and/or axially yieldable or adjustable
232		. . . . . . Pivoted roll support
233		. . . . . . . Adjustable pivot
234		. . . . . . Both rotating surfaces adjustable or yieldable
235		. . . . . Cooperating non-smooth surface characteristic
236		. . . . . . Intermeshing
237		. . . . With non-rotary surface moving means
238		. . . . With plural alternatively usable nonrotary surfaces and/or retractable rotor projections and/or adjustably or yieldably mounted rotary surface
239		. . . . Nonrotary surface adjustable or yieldable relative to rotary surface
240		. . . . . Sectional nonrotary surface having independently adjustable or yieldable parts
241		. . . . . Radially of rotary surface
241.5		. . . . . . Single roll jaw crusher
242		. . . . Cooperating non-smooth surface characteristics
243		. . . . . Intermeshing
244		. . . Axial or radial flow of material (e.g., disc mill, or cone and shell mill)
245		. . . . With feed and/or discharge mechanism or control
246		. . . . . Axially mounted rotary propeller or screw
247		. . . . . . Horizontal axis
248		. . . . . Hopper supply
249		. . . . . . Subjacent shaking shoe or receptacle
250		. . . . With moving cooperating surface
251		. . . . . Both cooperating surfaces rotate
252		. . . . . . Non-coaxial or eccentric
253		. . . . . . Vertical axis
254		. . . . With rotary surface axis noncoaxial or eccentric relative to nonrotary surface axis
257.1		. . . . Vertical axis
258		. . . . . Rotary shaft supported above rotary comminuting member
259		. . . . . Adjustable rotary member
259.1		. . . . With means vary space between surfaces
259.2		. . . . . By fluid
259.3		. . . . . Surface yieldably held in position
260		. . . . Cooperating non-smooth surface characteristics
260.1		. . . . . Worm or screw comminutor
261		. . . . . Intermeshing
261.1		. . . . . Conoidal surface
261.2		. . . . . Opposed, flat coaxial surfaces (e.g., disk mill)
261.3		. . . . . . Having plural angularly related land and groove
262		. . Reciprocating surface or surfaces
263		. . . Parallel motion
264		. . . Oscillating comminuting surface
265		. . . . With feed and/or discharge mechanism or control
266		. . . . With moving cooperating surface
267		. . . . Link and eccenric type actuator
268		. . . . Serial pivoted links type actuator or link with lever type actuator (e.g., toggle type)
269		. . . . . Means actuating pivot of serial links
270		. . . Vertical rectilinear movement (e.g., stamp mills)
271		. . . . With feeding and/or discharging mechanism or control
272		. . . . With means to rotate moving surface on non-comminuting stroke
273		. . . . Gravity projected surface only
273.1		. Multi-barbed comminuting face (e.g., grater)
273.2		. . On radial face
273.3		. . Cylindrical
273.4		. . Stationary curved face
274		. Stationary comminuting surface or material bed
275		. . Centrifugal projection of material
276		. . Conveyer material forcing means (e.g., scroll type or locomotive stoker type
277		. Rotating comminuting surface
278.1		. . Radial comminuting surface
278.2		. . Internal comminuting surface
279		. . with means to support material for rotation during comminution
280		. . With means to force material toward periphery of comminuting surface
281		. . . Means engaging sides of column of material
282		. . . Radially arranged rectilinearly reciprocating follower
282.1		. . Elongated edged member
282.2		. . . Detachably secured to a rotary element
283		. Reciprocating comminuting surface
284		. Mutual attrition or compression comminutors
285.1		. Comminuting mounting means, frames or other normally stationary structure
285.2		. . Removable or displaceable housing section
285.3		. . . Pivoted housing section
286		. . With means to adjustably or yieldably mount normally stationary comminuting element
287		. . . Pivotally mounted
288		. . . . Self-adjusting (e.g., universal mounting)
289		. . . . Yielding
290		. . . Yieldingly mounted
291		. Comminuting elements
292		. . with balancing means
292.1		. . Edged blades extending radially
293		. . Cylindrical or frusto-conical (i.e., peripheral comminuting face)
294		. . . Sectional or separable surface element
295		. . . . Annular sections
296		. . Disklike comminuting surface (i.e., radial comminuting face)
297		. . . Plural comminuting faces
298		. . . Prefabricated assembled surface sections or parts
299		. . Annular internal comminuting face
300		. . Wear face to backing connections
300.1		. . Plural stationary edged blades
301		. Miscellaneous
		******************************
		CROSS-REFERENCE ART COLLECTIONS
		******************************
600		FURNACE STOKERS
601		SAND MULLERS
602		SOAP DISPENSERS
603		ANIMAL POWERED MILL
604		PLURAL INLETS FOR DIVERSE SOLID MATERIALS
605		HAY UNBALER
606		MEDICAL/SURGICAL WASTE COMMINUTION
		******************************
		DIGESTS
		******************************
DIG 10		Foundry sand treatment
DIG 14		Grinding in inert, controlled atmosphere
DIG 17		Ice crushers
DIG 27		Pill or tablet crushers
DIG 30		Rubber elements in mills
DIG 31		Rubber preparation
DIG 37		Cryogenic cooling
DIG 38		Solid waste disposal

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Last Modified: 6 October 2000