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

Class
004
BATHS, CLOSETS, SINKS, AND SPITTOONS

Class definitions may be accessed by clicking on the class title, above.
Subclass definitions may be accessed by clicking on the subclass number, below.

Patents classified in a subclass may be accessed by clicking on the " " icon following the subclass number, below.

( please note that links to definitions and classified patents may not be available for some classes and subclasses )

For search strategies, please refer to the Classification Index Explanation of Data web page.

Subclass		Title
ClassTitle		===> BATHS, CLOSETS, SINKS, AND SPITTOONS
662		RESTROOM OR BATHROOM SELF-CLEANING SYSTEMS
663		FLUSH CLOSET, WASH RECEPTACLE, AND BATHTUB OR SHOWER
664		FLUSH CLOSET OR URINAL AND WASH RECEPTACLE
665		. Wash receptacle water empties into toilet facility
666		DIAPER WASHING DEVICES
667		FLUSH CLOSET SEAT ASSIST TO RAISE USER
300		FLUSH CLOSET
300.1		. With toilet tissue holder
300.2		. With bedpan rinser
300.3		. With splash guard or water baffle
301		. Urinals only
302		. . Flush actuation automatically responsive to condition
303		. . . Periodic flush
304		. . . By radiant energy responsive means
305		. . . By electric condition responsive means
306		. . Ventilated, i.e., noxious fume removal
307		. . Folding type
308		. . Pedal actuated flush
309		. . With disinfectant means
310		. . Vertical type
311		. . Bowl type
312		. Folding type
313		. With automatic flush responsive means
314		. With indicator
315		. With disposable container
316		. Reduced gravity environment type
317		. With recirculating means
318		. . Including specified filtering means
319		. With macerator
320		. . Including additional treatment
321		. With holding tank
322		. . And heater
323		. . And valve for emptying
324		. Manual selection of the amount of flush
325		. . Alternate unicyclic flush
326		. . . Plural flush valves
327		. . . . In axial alignment
328		. Tank and bowl with plural connections, one being pneumatic
329		. Low profile tank and bowl
330		. . Seat actuated flush
331		. . Float-controlled valve
332		. . Pressure flush
333		. Normally empty tank
334		. . Pressure tank
335		. . . With seat-actuated valve
336		. . . . And siphon bowl
337		. . . . And drain means
338		. . With seat-actuated valve
339		. . . And drain means
340		. Plural receptacles
341		. . Diverse
342		. . Separate and distinct
343		. Overhead tank with bowl
344		. . Siphon bowl
345		. Plural flush, preliminary or subsequent
346		. . Including plural compartments in tank
347		. Ventilated, i.e., noxious fume removal
348		. . Bowl
349		. . . Unitary with flush supply to bowl
350		. . . Unitary with discharge from bowl
351		. . . . Trap or siphon
352		. . . Annular ventilator
353		. Tank only
354		. . Pressure tank
355		. . . Float-released outlet valve
356		. . . Float outlet valve
357		. . . . Free floating
358		. . . . . With guide (e.g., a cage)
359		. . . Valve held open by flow
360		. . . Dashpot-controlled outlet valve
361		. . . Pneumatic or hydraulic adjustability
362		. . . By air under pressure
363		. . With plural compartments
364		. . . Single tank with divider
365		. . . Pivotal compartment
366		. . With simultaneous common actuating means for supply and outlet valves
367		. . . By fluid or electrical means
368		. . With outlet siphon
369		. . . Including means to relieve trapped air
370		. . . . By releasing trapped air
371		. . . . By raising trapped air housing
372		. . . Including means to immerse siphon
373		. . . Pump starter
374		. . . Jet starter
375		. . . Including means to raise liquid level
376		. . . Valve starter
377		. . . . By moving siphon
378		. . With outlet valve
379		. . . With delay of valve closing
380		. . . . By pressure or suction control of valve
381		. . . . By float releasable latch
382		. . . . . Tiltable or pivoted valve body
383		. . . . . With overflow through valve closure
384		. . . . . Latched actuator
385		. . . . By varying weight releasable latch
386		. . . . By shifting weight
387		. . . . By flow-responsive element in valve outlet
388		. . . . By retarding mechanism, e.g., dashpot
389		. . . . . With overflow through valve closure
390		. . . With overflow through valve closure
391		. . . . Float connected or float type valve
392		. . . Swinging
393		. . . . Pivoted
394		. . . Connected to float
395		. . . Float type
396		. . . . Free floating during flush
397		. . . . Having seating guide
398		. . . . . Cage type
399		. . . . . Valve moves relative to guide through bottom of valve
400		. . . . . Valve-attached seating element enters discharge pipe
401		. . . . . Plural static guides
402		. . . . Having liquid receptacle open upwardly
403		. . . . Hollow
404		. . . . . Open at bottom
405		. . . Actuator
406		. . . . Electrical
407		. . . . Pneumatic or hydraulic
408		. . . . Seat actuated
409		. . . . . With overhead tank
410		. . . . Button type
411		. . . . Portion of linkage external to tank
412		. . . . Including flexible linkage element in tank(e.g., chain or cord)
413		. . . . Including articulated rigid linkage
414		. . . . . Having stationary pivot within tank
415		. . Water saver
416		. . With lining
417		. . With connector or seal
418		. . . Enclosure or housing for connector or seal
419		. . With support
420		. Bowl
420.1		. . With body-contacting nozzle
420.2		. . With heated bidet fluid
420.3		. . With bidet basin
420.4		. . With bidet nozzle
420.5		. . . Integral with flush closet
421		. . Siphon discharge
422		. . . With flush valve
423		. . . . With vacuum breaker
424		. . . Extra trap or false trap
425		. . . Siphonic jet at trap
426		. . . With check valve
427		. . . Overflow inhibitor
428		. . . Configurated outlet
429		. . . Pan bowl
430		. . . Distinct from bowl
431		. . Pump or suction-type discharge
432		. . . With flush supply pump
433		. . . . Unitary with discharge pump
434		. . Valved dischage
435		. . . With flush supply actuated by valved discharge
436		. . . . By movement of seat or lid
437		. . . . Float control of fluid in bowl
438		. . . . Pivoted valve
439		. . . . . With additional valve (e.g., draft control)
440		. . . . . Pan type
441		. . . Pivoted valve
442		. . . . Pan type
443		BIDETS
444		. With seat
445		. Bidet basin for flush closet
446		. Bidet bowl with drain
447		. Nozzle with seat
448		. Nozzle attachment
449		DRY CLOSETS
111.1		. With heating meas
111.2		. . And cyclic control means
111.3		. . . Having seat actuator or interlock
111.4		. . Fluid fuel burner
111.5		. . Electric
111.6		. . And separate drying zone
450		. Bedpans
451		. . Disposable type
452		. . With liner
453		. . With deodorizing means
454		. . With urinal
455		. . With drain means
456		. . Cushioned
457		. . Accessories
458		. Automobile
114.1		. . Urinal
459		. Chemical
460		. Field
461		. Plural
462		. With urinal
463		. . Separate receiver
464		. With magazine
465		. . Furniture type
466		. . Valved bowl
467		. . Movable receiver
468		. . Seat operated
469		. . Lid or covering operated
470		. . In lid
471		. Valved bowl
472		. . Ventilated
473		. . Seat, lid or covering operated
474		. Vault type
475		. . Ventilated
476		. Enclosed receptacle type
477		. . Ventilated
478		. . With arm or back support
479		. Receptacle type
480		. . Invalid
481		. . Muffler for liquid
482		. . Ventilated
483		. . With seat
484		. . Flexible material
485		. Seat subclosure
486		. . Seat or lid operated
144.1		. Urinal
144.2		. . Disposable, entirely or a portion
144.3		. . Contacting and conforming to anatomy
144.4		. . Spout only
487		OPEN-WATER BARRIER
488		POOL TYPE
489		. Plural separate receptacles
490		. With cleaning means
491		. With wave-making means
492		. With water-jet means
493		. With heating means
494		. Combined or convertable
495		. Adjustable bottom
496		. Accessory
497		. . Wave quelling
498		. . Covering
499		. . . Air inflatable or supported
500		. . . Including storage area
501		. . . . On pool bottom
502		. . . . On a roll
503		. . . Including securing means
504		. . Safety means
505		. . Divider
506		. Construction details
507		. . Including water inlet or outlet means
508		. . . And water level control
509		. . . And pump
510		. . . Gutter
511		. . . . With handhold (e.g., life rail)
512		. . . . Including weir
513		. . Shape
514		CONVERTIBLE CLASS-TYPE APPARATUS
515		HAIR WASHING MACHINE OR DEVICE OR ACCESSORY
516		. Portable
517		. Combined
518		. With water supply means
519		. Head or neck receiving or supporting sink
520		. Shield or drain
521		. . Supported by body
522		. . With post-type support
523		. Body-portion rest
524		VAPOR OR HEAT IN BATH (E.G., SAUNA, STEAM BATH, OR SUDATORIUM)
525		. With additional means for washing
526		. Collapsible
527		. . Flexible fabric supported by a folding frame
528		. . With body support means
529		. . . Bed type
530		. . . . With head or back rest
531		. . . Seat
532		. . . . Fixed
533		. Conversion means
534		. . Flexible covering
535		MEANS FOR APPLYING VAPOR OR HOT AIR DIRECTLY TO BODY OF USER
536		. With means for covering a majority of the user's body
537		. To the head or face
538		TUBS
539		. Plural tubs (i.e., all for bathing)
540		. With means for turning tub for aiding access
541.1		. Means for agitating or circulating water in a tub
541.2		. . With condition response
541.3		. . By liquid flow
541.4		. . . And aerating
541.5		. . By aerating
541.6		. . Jet detail
545		. With heating of tub structure
546		. Combined with diverse means
547		. . Couch or bed
548		. . Storage or support means
549		. . . Cabinet
550		. . . . Pivoted tub
551		. . . Dressing table
552		. . A complete and separate shower
553		. . Basin or sink
554		. . . Relatively movable tub or basin
555		. With user access means in side of the tub
556		. . Pivoted door
557		. With movable closure
558		. . Flexible type
559		. Convenience accessories
560.1		. . Means for handling user
561.1		. . . Vertically and horizontally
562.1		. . . . Horizontal movement is pivotal
563.1		. . . . . Hydraulically operated
564.1		. . . Vertically, only (e.g., lifts)
565.1		. . . . Supported by tub
566.1		. . . . . Hydraulically operated
567		. . Means for spraying user
568		. . . Located inside of the tub
569		. . . . Conduit having rectilinearly spaced spray holes
570		. . . Mounted on support external to tub
571.1		. . Support for user, static
572.1		. . . For infant
573.1		. . . Body type
574.1		. . . . Foot
575.1		. . . . Head or back
576.1		. . . . Hand grip
577.1		. . . . . Mounted on tub, only
578.1		. . . . Seat
579		. . . . . Supported by tub, only
580		. . Protective liner or covering
581		. . . Mat type
582		. . . . With antislip means
583		. . . . . In contact with tub bottom
584		. Particular construction or configuration details
585		. . Flexible material (e.g., collapsible, etc.)
586		. . . For infant
587		. . . . Supported by folding frame
588		. . . . Inflatable
589		. . With integral body support
590		. . . Seat
591		. . Rim supply
592		. . Support structure
593		. . . For strengthening bottom or side
594		. . . Legs
595		. . Means for securing tub in place
596		SHOWER (E.G. STALL, WITH WALLS, RECEPTOR, AND SPRAY)
597		. Combined with diverse means
598		. With heating means
599		. Collapsible or expandable
600		. . Wall type
601		. Plural spray heads
602		. With self-contained water supply
603		. . And pump
604		. With special feature for physically handicapped
605		. Convenience accessories
606		. . Scrubber
607		. . Movable closure
608		. . . Flexible type
609		. . Shield or guard means
610		. . Mounting or supporting means for movable closure
611		. . Support for user
612		. Particular construction
613		. . Of receptor
614		. . Wall or panel
615		MEANS FOR SPRAYING USER
616		. With self-contained water supply
617		. . Overhead-gravity feed
618		. Supported by neck or shoulder of user
619		WASH RECEPTACLES
620		. Emergency fountains
621		. With human body support
622		. . Foot
623		. With proximity operated valve
624		. Wash fountain
625		. With water supply or waste-water tank
626		. . And water control
627		. . Having pivoted receptacle
628		. With cleaning brush, soap dispenser or holder
629		. With garbage receptor or tableware extractor
630		. With cabinet, shelf, or drawer
631		. With work surface
632		. . Sink rim rests on work-surface recess below top surface
633		. . Sink rim clamped to work-surface top by clamp means partly on sink
634		. . Sink rim clamped to work surface
635		. . Sink rim joined to work surface by molding frame
636		. . . Molding frame T-shaped
637		. . Drainboard
638		. Combined
639		. Plural receptacles
640		. . With drain
641		. . . Nested
642		. . . Dissimilar
643		. With support
644		. . Pivoted
645		. . Vertically adjustable
646		. . Post
647		. . Hanger
648		. . Bracket
649		. . Clamp
650		. With drain
651		. . And overflow
652		. . And strainer
653		. . And water handling
654		. Attachments
655		. . Disposable receptacle liner
656		. . Drainboard, rack, or tray
657		. . Receptacle or receptacle content protective device
658		. . Receptacle splash or drip guard
659		. . Infant bathing support
660		. Rim frames
661		MISCELLANEOUS
668		HAVING CONDITION RESPONSIVE SUPPLY OUTLET, DRAIN, OVERFLOW OR TRAP FOR A SINK OR BATH
669		. Float actuated
670		PREFABRICATED (E.G., MODULAR) PLUMBING SYSTEM
671		SUPPLY OUTLET COMBINED WITH A DRAIN, OVERFLOW OR TRAP FOR A SINK OR BATH
672		. Supply outlet valve linked to a drain, overflow or trap valve
673		. Supply outlet and drain
674		. . And overflow
675		SUPPLY OUTLET FOR A SINK OR BATH
676		. Mixing faucet
677		. . Having only one actuating means
678		. Faucet or spout
679		DRAIN, OVERFLOW OR TRAP FOR A SINK OR BATH
680		. Drain and overflow
681		. . And trap
682		. . With valve
683		. . . Ell having fluid communication with the drain and overflow openings of a sink or bath
684		. . . . Pop-up drain valve
685		. . . . . Contacted by a rotating member
686		. . . Standpipe overflow
687		. . . Bi-transit for drain of sink or bath
688		. Drain valve
689		. . Pop-up
690		. . . Contacted by rotating member
691		. . . . Lever
692		. . . . . Having at least a semi-spherical fulcrum
693		. . Operating means in sink or bath
694		. Overflow opening attachment
695		SUPPORT OR MOUNT FOR A SUPPLY, DRAIN, OVERFLOW OR TRAP MEANS
696		FITTING OR MANIFOLD FOR A SINK OR BATH
209R		VENTILATION
210		. Railway car
211		. House plumbing
213		. Electric-motor pump
214		. Water-motor pump
215		. Water-jet pump
216		. Bowl structure or vent valve
217		. Seat structure
218		. Roof outlet
219		. Sewer
220		. . Disinfecting
221		. . Burner
209FF		. With fluid filter
222		DISINFECTION
222.1		. With screen
223		. Dispensing to bowl
224		. . Combined with flusher
225.1		. Dispensing to overflow of flush tank
226.1		. Dispensing to or dispenser in flush pipe
227.1		. Dispensing to water in flush tank
227.2		. . Float actuated
227.3		. . . Valve
227.4		. . Water level actuated
227.5		. . . Static dispenser (i.e., no moving part)
227.6		. . . . Having a flush water dosing chamber
227.7		. . . . . With a siphon
228.1		. Dispensing to air from closet
229		. Chemical holder in seat
230		. Chemical holder in lid
231		. Chemical holder suspended in bowl
232		. Chemical chamber formed in bowl
233		. Seat and cover treating
234		SEAT AND LID
235		. Plural seats
236		. Hinges
237		SEAT
238		. Subclosure, seat operated
239		. Superposed
240		. Hinges
241		. Counterbalanced or spring biased
242.1		LID
243.1		MECHANISM POSITIONS COVER ON SEAT
243.2		. Tubular type cover
243.3		. Single continuous roll of flat covers
244.1		COVER DISPENSER
244.2		. Continuous roll
244.3		. Pad mounted on seat
245.1		COVER FOR SEAT
245.2		. Tubular type
245.3		. Securing means
245.4		. . Adhesive
245.5		. . Peripheral
245.6		. Specific material
245.7		. . Plastic or rubber
245.8		. . Paper
245.9		. . . Having dependent member in closet bowl
246.1		OPENER OR CLOSER FOR A CLOSET SEAT OR LID
246.2		. Fluid mechanism
246.3		. Lever operated opener
246.4		. . Four bar link
246.5		. . . Using a seat or lid for a link
248		BUFFERS AND DASHPOTS
249		FLUSH-VALVE OPERATORS
250		. Seat operated
251.1		DRIP CATCHER
251.2		. For flush closet tank only
252.1		FLUSH CLOSET BOWL SUPPORT, COUPLING, SEAL OR FASTENER
252.2		. Support for a wall hung closet bowl
252.3		. . Adjustable
252.4		. Flange with aperture for fastener
252.5		. . Having a seal
252.6		. Seal structure detail
253		CLOSET-BOWL CLOSURES
254		CLOSET HEAD, FOOT, AND BODY RESTS
255.01		OBSTRUCTION REMOVER
255.02		. Piston
255.03		. . With one way valve
255.04		. Connected to a source of external fluid under pressure
255.05		. . With force cup (e.g., a plunger)
255.06		. . With flow control valve
255.07		. . With means to block or clear the overflow
255.08		. . With head structure that grips drain opening or pipe
255.09		. . With head structure that increases velocity or turbulence
255.11		. Force cup (e.g., a plunger)
255.12		. . With one way valve
256.1		DEBRIS CATCHER FOR A FLUSH CLOSET OR CLEAN OUT PLUG
258		SPITTOONS
259		. Pocket
260		. Bar
261		. Disinfecting
262		. Flushing
263		. . Dental
264		. . . Rotary member
265		. . Hand pump
266		. . Flush valve and outlet valve
267		. Covered
268		. . Floor orifice
269		. . . Valved outlet
270		. . . Receptacle
271		. . Hand operated
272		. . Pedal operated
273		. . . Two-part cover
274		. . Flexible material and holder
275		. Floor orifice
276		. . Valved outlet
277		. . Receptacle
278		. Agitator
279		. Reversible
280		. Floor controlled valve
281		. Gravity controlled valve
282		. Positively operated inlet valve
283		. Trapped liquid
284		. Gravity receptacle
285		. Flexible material and holder
286		STRAINER, STOPPER, PLUG OR CLOSURE
287		. Combined strainer, plug, or valve
288		. Combined strainer and pipe coupling
289		. Strainers in series
290		. Strainer, receptacle
291		. . Depending
292		. Strainer
293		. Closure
294		. . Disinfecting
295		. Plugs
		******************************
		CROSS-REFERENCE ART COLLECTIONS
		******************************
900		DECONTAMINATION SHOWER
901		BOWL SKIRT OR TANK COVER
902		TOILET TRAINING
903		SHOWER HEAD WITH MATERIAL DISPENSING
904		SWIM-IN-PLACE POOL
905		SQUAT BOWL
		******************************
		DIGESTS
		******************************
DIG 1		Plural connected floats
DIG 2		Disappearing bowl
DIG 3		Electric flushing
DIG 4		Garbage grinder
DIG 5		Urine guards
DIG 6		Heated seats
DIG 7		House plumbing fittings
DIG 8		Rubber seats
DIG 9		Methods
DIG 10		Water additive or substitute
DIG 11		Oil toilet
DIG 12		Aerobic (decomposing) toilet
DIG 13		Toilet having deformable trap
DIG 14		Pipe strainers
DIG 15		Prison bathrooms
DIG 16		Deformable toilet traps
DIG 17		Electrolytic toilets
DIG 18		Bathroom fixture liners
DIG 19		Liquid-solid separators

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Last Modified: 6 October 2000