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Class Number: 297
Class Title: CHAIRS AND SEATS
Subclass Subclass
Number Title
1 SEATING DEVICE REORIENTS AS UNIT
2 .To expose nonoccupant support
3 .Inverting
4 PORTABLE BOTTOM WITH OCCUPANT ATTACHER
5 WITH OCCUPANT-PROPELLED WALKER OR SKATER FRAME
6 .Bottom movable to nonuse position
7 WITH REMOVABLE OR REORIENTABLE CRIB SIDE
8 .Fabric crib side
9 .Side added to front edge of bottom
10 .Side storable within or upon seating device
11 ..Within or upon armrest
12 ..Side withdrawn laterally of device
13 FOLDING BOTTOM PERMITS SEAT ROTATION ABOUT VERTICAL AXIS
14 BOTTOM AND BACK CONNECTED TO AND FOLDABLE IN WALL OR PARTITION
15 .In floor
16.1 COLLAPSIBLE CHAIR; I.E., RELATIVELY FOLDING BOTTOM, BACK,
AND LEGS
16.2 .Collapsed to a compact bundle having all rigid elongated
elements extending in a single longitudinal direction
17 .Collapsed components form self-contained carrying case
18 .Nonpivoted crossed legs
19 .With means to hold chair in plural operative configurations
20 ..By adjustable leg-to-rocker connection
21 ..Set means operative between back post and rear leg
22 ...Back-to-leg prop
23 ....Single element forms back post and front leg
24 ..Set means interconnects front leg and rear leg
25 ...Brace or tie interconnection
26 ....Bottom forms or supported by tie
27 ..Set means include armrest
28 ...Rigid with armrest
29 .Journaled connections of parts permit occupant to change
configuration
30 .With concurrently folding footrest
31 .Front leg folds relative to integral bottom-rear leg; e.g.,
beach type
32 .With folding rocker
33 ..Rocker disengages from leg to permit folding
34 .Rearwardly folding back
35 .With folding armrest
36 ..Laterally swinging
37 ...To overlie or underlie bottom
38 ..Slidably connected to chair component
39 ..Back, arm, bottom, and front leg form collapsible
parallelogram
40 ..Folds forwardly and downwardly
41 ..Pivoted to integral back and leg
42 .Laterally collapsible
43 ..Against fixed standard
44 ..Folding back or bottom sections
45 ..Fabric bottom and back
46 .Back and legs collapse concurrentlyy
47 ..Parallel leg pairs
48 ..Back articulated to both leg pairs
49 ...Above and below bottom
50 ..Back-to-leg articulation above back-to-bottom articulation
51 .Back and legs collapse independently
52 ..Back pivoted to and abutting a leg
53 ..To overlie and underlie bottom
54 ...Noncrossed legs
55 .Relatively collapsible bottom, rear legs, and integral back and
front legs
56 ..Crossed legs
57 ...Bottom detachably or slidably connected to back
58 ..Rear leg pivoted to back above bottom connection
59 .Relatively collapsible bottom, front legs, and integral back
and rear legs
60 ..Upwardly tilting bottom elevates pivoted front legs
61 HEADREST INTERCONNECTED WITH BACK FOR RELATIVE CONCURRENT
MOVEMENT
62 COMPONENT REORIENTABLE TO STACKED BUNKS
63 COMPONENT OF ADJACENT SEATS REORIENTABLE TO SINGLE BED
64 .Back pivots rearwardly between and coplanar with bottoms
65 ..Bottom moves horizontally responsive to reclining of back
66 ..Rear seat component supports reclined back
67 .Facing seats
68 LEGREST OR FOOTREST INTERCONNECTED TO MOVE RELATIVE TO BOTTOM
AND CONCURRENT WITH BOTTOM OR BACK
69 .With means to permit independent adjustment of legrest or
footrest
70 ..Footrest adjustable independently of legrest movement
71 .Common actuator controls vertical adjustment and relative
movement of parts
72 .Back reversible as to bottom
73 ..Back movement disposes footrest for use from rear
74 ...Common rocker arm carries opposed footrest
75 .Relatively movable rest sections move simultaneously
76 ..Footrest extends angularly of depending legrest
77 .Face-to-face seats suspended to oscillate
78 .Interconnection includes back-controlled movable armrest
79 ..Armrest linkage connected to legrest below legrest-to-bottom
pivot
80 ..Armrest directly pivoted to upper extension of legrest
81 ...With concurrently movable bottom
82 ....Bottom pivoted to supporting frame at rear
83 .With means to move bottom relative to and concurrently with
back
84 ..Rest advances forwardly of bottom
85 ...Advancing linkage includes lazy tong pivoted to rest
86 ..Common actuator articulates bottom and rest to back
87 ..Bottom actuator for rest
88 .Bottom and back movable as unit relative to legrest
89 ..Advancing legrest pivoted to lazy tong linkage
90 .Interconnector articulated to back extension below
back-to-bottom pivot
91 ..By plural links
92 CHAIR WITH INTERCHANGEABLE AND REVERSIBLE BOTTOM AND BACK
93 .One-piece bottom and back
94 BACK REVERSIBLE AS TO BOTTOM; E.G., WALKOVER TYPE
95 .Back movement tilts bottom oppositelyy
96 ..Gear actuator
97 ..Back-actuated cam in bottom-carried slot
98 ...Cam carried by back support
99 ...Cam actuator slidably connected to back
100 .Bisector link rigidly connected to back
101 .Multiple links, pivotally connected to back
102 ..Crossed link back inverter
103 ..Parallelogram linkage
104 .Link pivoted to back and armrest
105 DISPLACEABLE BOTTOM EXPOSES SUPPLEMENTAL BODY SUPPORT
106 .Lazy tong-mounted supported
107 .Laterally extensible
108 .Bottom inverts to form extension of subjacent support
109 ..Plural sections exposed by inverting bottom
110 ..Armrest or back inverts with bottom to support extension
111 .Supplemental body support positioned forwardly of bottom
112 BACK CARRIES STORED SUPPLEMENTAL BODY SUPPORT
113 .Armrest movable from recess in back
114 .Supplemental support pivoted to upper end of back
115 ARMREST MOVABLE TO DIVERSE USE POSITION
116 .Pivots laterally
117 ..Releasable from back-connected upright position
118 CONVERTIBLE
119 .Table
120 ..Additional table leaf extensible from converting component
121 ..Common table with plural bottoms
122 ..Sectional table formed of bottom and back
123 ..Bottom and back move as unit
124 ..Back-to-table top
125 ...Rear of back
126 ....Extends beyond bottom for concurrent use
127 ....Supported on armrest
128 .....Slidably connected to armrest
129 .To nonoccupant support device
130 .Alternately usable seat mounts
131 ..Rocker retractable to inoperative position
132 ...Ends of composite rockers contact inwardly
133 ..Detachable rocker
134 ..Seat detachable from subjacent table or stool
135 WITH TABLE, DESK, OR EASEL
136 .Seat supported within periphery of apertured table
137 ..Seat rotatable about vertical axis
138 ..Seat movable along table-mounted horizontal track
139 .Table forms carrying case for seat
140 .Seat inoperatively positionable beneath table
141 ..Pivotally movable seat
142 ...Horizontally swinging
143 ..Slides on track or guide
144 .Extensible from within or beneath seat component
145 ..From armrest
146 ..From back
147 .Extensible from wall or receptacle
148 .Table supported on both arms
149 ..Horizontally adjustable
150 ...And movable to inoperative position
151 ...Pin and slot type
152 ..Means for attaching seat and table to adjacent support
153 ..Removablee
154 ..Movable to inoperative position
155 ...To side of chair
156 .Straddle-type seat
157 .Table with opposing seats
158 ..Booth type
159 ..Folding
160 .Tablet-arm type
161 ..Adjustable to multiple use positions
162 ..Connected to move to inoperative position
163 .Table behind seat
164 ..Both independently vertically adjustable
165 ...Tiltable seat
166 ....Single pedestal
167 ..Tiltable seat
168 ...Vertically adjustable
169 ...With tiltable table
170 .Chair-secured standard supports table
171 ..Standard is vertical extension of chair leg
172 ..Standard spaced from chair by base element
173 .Table pivotally connected to seat
174 .Table in front of seat
175 MILKER STOOL TYPE
176 .With tail guard or holder
177 .Pail support movable as unit relative to seat
178 ..Pail support vertically movable
179 .Adjustable as to pail size
180.1 WITH HEAT EXCHANGER OR MEANS TO PROVIDE FLUID OR VAPOR
TREATMENT
180.11 .Portable supplemental pad
180.12 .Electric heating element
180.13 .Power source propels air for heat exchange
180.14 ..Fan directly attached to a chair or seat component
180.15 .Liquid medium
180.16 .Occupant's motion actuates a ventilating means (e.g.,
rocking movement, etc.)
181 SIMULATION; E.G., ANIMAL OR VEHICLE
182 WITH DEBRIS CATCHER
183 WITH HANDLE
184.1 WITH WEATHER SHIELD OR INSECT PROTECTOR (E.G., CANOPY,
SCREEN, ETC.)
184.11 .Detachable or movable for seat occupancy
184.12 .Transparent visor
184.13 .For child seat
184.14 .Enclosure type
184.15 .Flexible canopy having framework
184.16 ..Umbrella type
184.17 ..U-shaped elements have ends which converge toward a
common laterally extending axis (e.g., baby carriage type,
etc.)
185 WITH MIRROR
186 WITH MUSICAL INSTRUMENT OR INSTRUMENT SUPPORT
187 PRIE-DIEU TYPE OF KNEELING STAND
188 WITH HOLDER OR RECEPTACLE FOR DISPARATE ARTICLE
189 .Holder or receptacle collapses as seat pivots
190 .For apparel
191 .On or in back
192 .Directly under seat
193 ..Accessible by displacement of seating surfacee
194 .On or in armrest
195.1 STRADDLE SEAT (E.G., SADDLE TYPE, ETC.)
195.11 .Other than cycle seat
195.12 .Plural related seats
195.13 ..Detachable seat
196 .Base-attached cantilevered spring mounts seat
197 .Filamented supporting surface
198 .Laminated leaf spring-mounted
199 .Pneumatic cushion
200 ..Plural independent compartments
201 .Sectional or split relatively movable supporting surface
202 .Depressed portion spaces body supporting surfaces
203 .Rear end supported on inclined rod independently of support for
front end
204 .With means to adjustably set tautness of supporting surface
205 ..Rod mounting bracket includes tautness setting means
206 ..Front spring adjustably clamped to rear spring
207 ..Threaded adjusting means extends longitudinally of seat
208 .Coil spring-mounted
209 ..Vertically oriented
210 ...Serially arranged tension and compression springs
211 ...Parallel stems each supported by encircling spring
212 ...Rear coil directly secured to front connected member
213 ..Axis extends laterally of seat
214 .With cushioned top
215 .Bow spring-mounted
215.1 .Including an upwardly extending portion at rear of seat
215.11 ..Extends upwardly above waist to provide back support
215.12 ...Movable back support
215.13 .Adjustable to plural use positions
215.14 ..Longitudinally
215.15 ..Angularly
215.16 .Molded plastic saddle
216.1 CRASH SEAT
216.11 .Force-absorbing means incorporated into child seat
216.12 .Force-absorbing means incorporated into headrest area
216.13 .Force-absorbing means incorporated into back
216.14 ..For absorbing rear-impact force
216.15 .Bottom and back interconnected for relative concurrent
movement
216.16 .Bottom and back movable as unit in response to force
216.17 ..Rectilinearly vertically
216.18 ..In horizontal plane
216.19 ..Tiltably
216.2 ...Mounted on support legs
217 COMBINED
218 UPHOLSTERY COVER DETACHABLY CONNECTED TO FRAME
219.1 DETACHABLE SUPPLEMENTAL FLEXIBLE PAD OR COVER
219.11 .For straddle seat
219.12 .For child seat
220 .Headrest
221 ..With cover supply
222 ...With cutter
223 .Reversible or with replaceable section
224 .With elastic section
225 .Wraparound one-piece bottom, back, and shoulder or arm
226 .Hem-inserted keeper bar
227 .Armrestt
228 ..And bottom or back cover formed of one piece
228.1 .Slipcover for bottom or back
228.11 .Having flexible hem-inserted securing means (e.g.,
drawstring, elastic band, etc.)
228.12 .Having elongated flexible free-end securing means
228.13 .Having rigid or semirigid securing member (e.g., zipper,
hook, ring, snap, button, etc.)
229 .One-piece bottom and back
230.1 SUPPLEMENTAL BACK
230.11 .Flexible occupant back-engaging surface spans framework
230.12 .Including a rigid panel
230.13 .Back and supplemental back together form occupant
back-engaging surface
230.14 .Including a means to adjust supplemental back relative to
a seat back
250.1 SUPPLEMENTAL SEAT (E.G., CHILD SEAT, ETC.)
251 .Armrest-supported
252 .Fore or aft board straddling clamps
253 .Secured by bottom-back crevice
254 .Back-connected
255 ..Collapsible or foldable unit
256 ...Rigid panel-type bottom
256.1 .Adjustable to plural operative positions
256.11 ..Vertically
256.12 ..About a vertical axis; i.e., rotates
256.13 ..Tiltable
256.14 ..Reversible
256.15 .Having a front guard or barrier
256.16 .Detachably mounted to a support base
256.17 .For shopping cart
232 PLURAL RELATED SEATS
233 .Combinable to form single seat
234 .Movement of one seat effects storage of either seat
235 ..Both move to effect storage of one
236 ..Moving seat stores within or beneath other bottom
237 ...Stored seat withdraws to substitute for other
238 ..Within back
239 .Nested
240 .Relatively rotatable
241 ..One seat has floor roller
242 ..Coaxially
243 .Tandem
244 .Oppositely facing
245 .Face to face
246 ..Oscillating on rollers
247 ..Oscillating on rockers
248 .Coupled side-by-side
249 ..Adjustable within or to arcuate row
257 .Relatively movable
258 ROCKER-MOUNTED
259 .Bottom connected to rocker for movement supplemental to rocking
motion
260 .With means to impart rocking motion
261 .Track-mounted rockers; i.e., platform rocker
262 ..Meshed teeth engagement
263 ..Rotatable track
264 ..Spring return to neutral position
265 ...Coil springg
266 ....Extensible
267 .....With opposing compressible coil spring
268 ...Transversely extended spring; e.g., torsion bar
269 ..With means to lock rockers to track
270 .With means to limit or immobilize rocking motion
271 .With footrest or legrest
272 .Rockers, or rocker attachments
273 OSCILLATING SUSPENDER CONNECTED TO OR THROUGH ADJUNCTIVE REST
274 .Baby jumper type
275 ..With belt or garment restrainer
276 .Suspender passes through armrest to bottom
277 .Suspender connected to back
278 ..Adjustable connection for movement relative to bottom
279 ..And legrest or footrest
280 ..And armrest or side frame
281 .Armrest or side frame-connected
282 ..Bottom dependent from subjacently mounted armrest
283 CHANGEABLE OR REVERSIBLE SUPPORTING SURFACE
284.1 BOTTOM OR BACK WITH MEANS TO ALTER CONTOUR
284.2 .Having adjustment means for seat surface tension
284.3 .Having a plurality of adjacent relatively adjustable
sections
284.4 .Providing support for lower back (i.e., lumbar) region
284.5 ..Portable with seat attacher
284.6 ..Having a fluent material within flexible container
284.7 ..Rectilinear vertical adjustment
284.8 ..Rectilinear horizontal adjustment
284.9 .Providing support for the sides of a seated occupant
284.11 .Located at the front of the seat bottom
285 BACK RESILIENTLY SUPPORTED IN OPERATIVE POSITION
286 .Resilient support includes armrest
287 ..Integral leg and armrest
288 ...Rear leg
289 ..Rearward back tilting axially compresses spring
290 ..Spring leaf or spring rod armrest
291 .Spring centers back on pivot
292 .Coil spring surrounds horizontal pivot
293 .Coil spring comprises horizontal pivot
294 .Resilient leg integral with bottom or back
295 ..Bottom and back
296 .Back secured to resilient upright bar or rod
297 ..Bar or rod rigidly secured to bottom
298 ..Bar or rod operatively adjustable with respect to bottom
299 .Spring mounts terminal of back
300 .Spring resists tilting of back
301 ..Simultaneously with bottom about fixed pivot
302 ...Back rigid with bottom
303 ....Pivot central of and below bottom surface
304 ..Adjustable resistance
305 ...Coaxial adjustment means extends through coil
306 ..Independently of bottom
307 .Constantly oriented during up-and-down movement
308 ..Back immovable relative to bottom
309 ..Bottom component resiliently supports back
310 WITH MEANS TO CONTROL REARWARD CHAIR TIPPING
311 MOVABLE BOTTOM
312 .Independently movable resilient bottom sections
313 .Tiltablee
314 ..Laterally
315 ...With laterally folding back
316 ..Interconnected with back for relative concurrent movement
317 ...Bottom slides forwardly while tilting
318 ....On roller
319 ...Back-actuated cam tilts bottom
320 ...Back supports rear of bottom
321 ....Front of bottom carried by link
322 ...Bottom tilts with concurrent horizontal movement
323 ...With armrest interconnected for mutual movement
324 ...Back moved by folding of bottom
325 ..Bottom and back tiltable as unit
326 ...About stationary horizontal pivot
327 ....To plural use positions
328 .....With set means horizontally spaced from pivot
329 ...With concurrent horizontal movement
330 ..Motor actuated
331 ..Movable to inoperative position
332 ...Biased to position
333 ....Spring axis coaxial with pivot axis of bottom
334 ...On link
335 ...About stationary horizontal pivot
336 ....Disengages holding abutment rearwardly of pivot
337 .Movable independently of back
338 ..Vertically
339 ...With force-multiplying means
340 .Interconnected with back for relative concurrent movement
341 ..Back tilts and bottom moves forwardly
342 ...Rearwardly tilting of back
343 ....Back slidably connected to back support
344.1 .Bottom and back movable as a unit
344.11 ..Mounted for horizontal oscillating movement
344.12 ..Vertically adjustable
344.13 ...And horizontally adjustable
344.14 ...Horizontal movement concurrent with vertical movement;
i.e., oblique movement
344.15 ...Pivotal linkage assembly
344.16 ....Gas or hydraulic cylinder
344.17 ....Motor actuated
344.18 ...Slidably coupled components (e.g., telescoped, etc.)
344.19 ....Gas or hydraulic cylinder
344.2 ....Motor actuated
344.21 ..About vertical axis; i.e., rotates
344.22 ...Including means to lock unit at distinct rotated
positions
344.23 ....Motor actuated
344.24 ...Having additional movement in horizontal plane
344.25 ...Back tilted to permit seat rotation
344.26 ...Including antifriction feature (e.g., ball bearings,
etc.)
350 LATERALLY FOLDING OR COLLAPSING BACK
351 .One-piece bottom and back
352 PORTABLE BACK WITH BOTTOM ATTACHER
353 MOVABLE BACK
354.1 .Tiltable
354.11 ..Pivot axis located at or adjacent to a central point of
back
354.12 ..Plural distinct occupant-supporting positionss
354.13 ...Movable to a rear-horizontal position
356 ...Full stroke adjusting mechanism
357 ...Vertical displacement of back disengages holder
358 ...Common actuator adjusts height and inclination
359 ...Back-pivoted armrest carries latch or holder
360 ....Bottom-pivoted armrest
361.1 ...Mechanical operator tilts back fore and aft
362 ....Gear train
362.11 ....Motor actuated
362.12 ....Actuated shaft
362.13 .....Gas or hydraulic cylinder
362.14 .....Threaded shaft
363 ...Axially slidable bolt or pawl
364 ....Spring-pressed
365 .....Engages movable rack
366 ...Rack and pawl
367 ....Actuator disengages pawl
368 .....Actuator rigid with pawl
369 ......Spring-pressed
370 ....Actuator disengages rack
371 .....Actuator rigid with rack
372 ....Depending pawl or rack prop pivoted to back
373 ...Serrated clamp hinge
374 ...Friction detent
375 ....Clamp acts on axially moving rod
376 ....Pin and slot
377 ...Held by prop behind back
378.1 ..Foldable forwardly over bottom
378.11 ...Including an inertia-responsive latch
378.12 ...Held erect by a releasable latch
378.13 ....Latch element supported by a structure separated from
chair or seat (e.g., vehicle mounted striker, etc.)
378.14 ...Including means to hold back in forwardly folded
position
380 ...Tension tie supports back
381 ....Armrest tie
382 ...Fabric hinges bottom to back
383 .Horizontally
391 HEADREST
392 .Chin support
393 .Occupant attached
394 .Detachable headrest and armrest unit
395 .Wall- or ceiling-supported
396 .Extension of upper back
397 .Portable, with seat attacher
398 ..Laterally collapsible
399 ..U-clamp mounted
400 ...Adjustable
401 ....Spring clamp
402 ....Screw clamp
403 .Movable to inoperative position rearwardly of back
404 .Resiliently mounted
405 .Ball- and socket-mounted
406 .Adjustable laterally
407 ..On shiftable mounting
408 .Angularly movable about horizontal axis
409 ..With horizontal translator
410 .Adjustable rectilinearly verticallyy
411.1 SUPPORT FOR ARMPIT
411.2 ARMREST
411.21 .Mounted to structure other than a chair or seat component
411.22 ..Sill suspended
411.23 .Attachable to diverse chairs or seats; i.e., portable
411.24 ..Supported by a seating surface
411.25 ..Connected to a back
411.26 .Detachably interfitted to a particular chair or seat at a
connecting joint
411.27 ..To bottom
411.28 ...And to back
411.29 ..To back only
411.3 .Movable to nonuse position
411.31 ..Armrest or its supporting member movable about a vertical
axis
411.32 ..Armrest or its supporting member movable about a
horizontal axis
411.33 ...Supporting member movable about plural horizontal axes
411.34 ...Axis parallel to a lateral edge of bottom
411.35 .Adjustable to multiple use positions relative to bottom or
back
411.36 ..Vertically
411.37 ..Laterally
411.38 ..Angularly
411.39 ...Angular adjustment coincides with tilting of the back
for relative concurrent movement
411.4 .Single element forms plural spaced armrests of a chair or
seat
411.41 ..And portion of back
411.42 .Formed as one-piece with front leg
411.43 .Connected to back and front leg
411.44 .Connected to back and bottom
411.45 .Mounted on an upwardly extending side panel
411.46 .Upholstered
423.1 REST FOR KNEE, LEG, OR FOOT
423.11 .For occupant's knee or shin (e.g., sit-kneel type of
chair, etc.)
423.12 ..Adjustable relative to chair or seat to plural use
positions
423.13 ..Convertible to a chair or seat without kneerest
423.14 .For nonoccupant use (e.g., shoe salesman's stool, etc.)
423.15 ..Rest at rear of chair or seat
423.16 ..Kneeling stool
423.17 .Including a portion engaging a side of occupant's leg
423.18 .Having substitute footrest
423.19 .Connected to chair or seat for relative movement
423.2 ..Horizontally slidable from beneath bottom to a position
in front of bottom
423.21 ...Having a floor-engaging support
423.22 ...Having additional movement to an operative position
423.23 ....Including means for adjusting the rest to plural
operative positions
423.24 .....Angular adjusting means
423.25 ..Footrest movably connected to an upright support fixed to
chair or seat
423.26 ..Pivoted for vertical swinging (i.e., about horizontal
axis)
423.27 ...Having a floor-engaging supportt
423.28 ...Pivoted to an unusable position beneath bottom
423.29 ...Pivot axis parallel to lateral edge of bottom
423.3 ...Pivot axis adjacent and parallel to front edge of
bottom
423.31 ....Held by a prop behind rest
423.32 .....Prop adjusts rest to plural use positions
423.33 ......Adjustable friction detent
423.34 ....Footrest moves relative to legrest
423.35 .....Pivotally movable footrest
423.36 .....Slidably adjustable footrest
423.37 ..Pivoted for lateral swinging; i.e., about vertical axis
423.38 ..Rectilinearly in vertical direction
423.39 .Portable
423.4 ..Connectable to a chair or seat
423.41 ..Self-supported
423.42 ...Resiliently mounted
423.43 ...Rocker type
423.44 ...Adjustable to plural operative positions
423.45 ....Rectilinearly in vertical direction
423.46 ....Angularly
440.1 HAVING DETACHABLY INTERFITTING PARTS OR COMPONENTS; I.E.,
KNOCKDOWN
440.11 .Detachable fabric component
440.12 .Sheet material folded to form a chair or seat
440.13 .Slotted components normal to each other
440.14 .Modular components
440.15 .Interfitted back and bottom or back frame and bottom
frame
440.16 ..Including a substantially upright post slidably inserted
into an elongated recess
440.17 ..One-piece back and arm
440.18 ..One-piece back and leg
440.19 ...Front leg
440.2 .Interfitted back and back frame
440.21 ..Including a substantially upright post slidably inserted
into an elongated recess
440.22 .Interfitted bottom and bottom frame
440.23 .Front, rear legs, and armrest together form a unit
detachable from bottom or back
440.24 .Telescoping hollow parts or components
445 BOTTOM, BACK, AND LEG; I.E., CHAIR
446 .Back or back standard integral with leg
447 ..Front leg
448 ..Single element forms spaced back standards
449 .Interbraced back, bottom, and leg
450 .Back connected to end support
451 .Back standard secured below or to underside of bottom
452.1 BOTTOM OR BACK
452.11 .Directly connected bottom and back
452.12 ..One-piece panel
452.13 ...Flexible panel fixed to a frame (e.g., fabric,
elastomeric sheet, etc.)
452.14 ...Rigid or semirigid plastic panel
452.15 ....Including means to provide or enhance resiliency (e.g.,
slits, grooves, etc.)
452.16 ..Interconnected cushions for bottom and back
452.17 ...Continuous cushioning material (e.g., one-piece cushion,
bean bag, etc.))
452.18 .Framework
452.19 ..Continuous bottom and back frame
452.2 ..Having elongated hollow member (e.g., tubular, etc.)
452.21 .Contoured bottom
452.22 ..Planar bottom with a central recess
452.23 ..Laterally extending contour
452.24 ...Contoured rigid base
452.25 ....Including symmetrical thigh-support portions
452.26 ...Preshaped foam pad
452.27 ....Different densities of foam
452.28 ...Custom fitted for a particular occupant
452.29 .Contoured back
452.3 ..For lower back; i.e., lumbar region
452.31 ...Rigid or semirigid preshaped panel
452.32 ...Preshaped cushioning material
452.33 ..Laterally extending contour
452.34 ...Including a projected side member
452.35 ....Preshaped cushioning material
452.36 ....Rigid or semirigid preshaped panel
452.37 ..Having varying density foam
452.38 .Having a trim panel
452.39 .Cantilevered bottom or back
452.4 .Having a laterally adjustable dimension
452.41 .Having fluent material
452.42 .Including a ventilating means
452.43 ..Supplemental ventilating pad
452.44 ...Wire spring element between pads' layers
452.45 ...Projecting elements
452.46 ..Apertures in primary bottom or back
452.47 ...Aperture in upholstery
452.48 .Cushioned
452.49 ..Including a support spring
452.5 ...Coil compression spring
452.51 ....Encapsulated by cushion
452.52 ...Noncoil wire spring (e.g., linear or sinuous wires,
etc.)
452.53 ....Encapsulated by cushion
452.54 ...Spring integral with frame of bottom or back
452.55 ..Including a support panel (e.g., pan-type seat, etc.)
452.56 ...Flexible panel (e.g., fabric or elastomeric sheet, web,
etc.)
452.57 ...Encapsulated panel
452.58 ..Having a fixed cover
452.59 ...Fastened to a support framework
452.6 ....Including a fixing means extending through cushioning
material
452.61 ...Bonded to cushioning material
452.62 ...Cover formed from a plurality of discrete sections
452.63 .Made of individual elongated members extending across a
support frame (e.g., webs, straps, slats, stringed beads,
etc.)
452.64 ..Intermeshed (e.g., crisscrossed, etc.)
452.65 .Rigid or semirigid hollow shell
461 PADDED STOOL
462 .Hassock type
464 BODY OR OCCUPANT RESTRAINT OR CONFINEMENT
465 .Jacket, vest, or suit restraint
466 .Leg or arm restraintt
467 .Having crotch strap or post
468 .Safety belt or harness; e.g., lap belt or shoulder harness
469 ..Passive restraint system
470 ..With means to absorb energy of acceleration
471 ...Deformable or stretchable element
472 ....Element is permanently deformed; i.e., one-time use
473 ..Belt or harness rides on seat connected slide
474 ..Retractable
475 ...Belt winds upon take-up reel
476 ....Having means to lock belt against further extension when in
its occupant-restraining position
477 .....Electrically operated
478 .....Inertia actuated
479 ...Having means to lock belt against further extension when in
its occupant-restraining position
480 ..Inertia-responsive locking or tightening of belt or harness
481 ..Having means for storage in nonuse position or in position to
be handy for use
482 ..Belt or belt anchor covers
483 ..Shoulder belt or harness
484 ...Engageable with both shoulders of occupant
485 ..Having means providing easily releasable attachment to a chair
or seat
486 .Shoulder restraint
487 .Front guard or barrier
488 ..Padded or cushioned member
463 MISCELLANEOUS
* ******************************
* DIGESTS
* ******************************
DIG 1 Foam
DIG 2 Molded
DIG 3 Pneumatic
DIG 4 Wheelchair
DIG 5 Fireproof
DIG 6 Velcro
DIG 7 Rocker/recliner
DIG 8 Inflatable bellows
DIG 10 Occupant-arising assist