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Outline
Indent Level
Color Curly Brackets (indicating CPC extensions to IPC) References Date Revised

CPC
COOPERATIVE PATENT CLASSIFICATION
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WATER-CLOSETS OR URINALS WITH FLUSHING DEVICES; FLUSHING VALVES THEREFOR
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Water flushing devices with cisterns;
{
Setting up a range of flushing devices or water-closets; Combinations of several flushing devices
}
E03D 1/003
.
{
Cisterns in combination with wash-basins, urinals, or the like (domestic plumbing installations E03C)
}
E03D 1/006
.
{
Realisations of and provisions for preventing "sweating" of cisterns
}
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E03D 1/01
.
Shape or selection of material for flushing cisterns
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E03D 1/012
. .
Details of shape of cisterns, e.g. for connecting to wall, for supporting or connecting flushing-device actuators
{
(mounting frames with incorporated cisterns E03D 11/146)
}
E03D 1/0125
. . .
{
of built-in cisterns
}
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E03D 1/02
.
High-level flushing systems
E03D 1/025
. .
{
Cisterns with floats actuating the flushing
}
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E03D 1/04
. .
Cisterns with bell siphons
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E03D 1/05
. . .
with movable siphon bells
E03D 1/053
. . . .
{
which are pushed upwards by means of own buoyancy, springs, counterweights, or the like
}
E03D 1/056
. . . .
{
providing an air lock
}
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E03D 1/06
. .
Cisterns with tube siphons
E03D 1/07
. . .
with movable or deformable siphon tubes
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E03D 1/08
. . .
Siphon action initiated by air or water pressure
{
(actuating mechanisms therefor E03D 5/024)
}
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E03D 1/082
. . . .
{
in tube siphons
}
E03D 1/085
. . . . .
{
by injection of air or water in the short leg of the siphon
}
E03D 1/087
. . . . .
{
by pump, valve, or the like, in the short leg of the siphon or a vacuum pump in the long leg of the siphon
}
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E03D 1/10
. . .
Siphon action initiated by raising the water level in the cistern, e.g. by means of displacement members
E03D 1/105
. . . .
{
in cisterns with tube siphons
}
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E03D 1/12
. . .
Siphon action initiated by outlet of air
E03D 1/125
. . . .
{
in cisterns with tube siphons
}
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E03D 1/14
. .
Cisterns discharging variable quantities of water (twin or multiple flushing cisterns E03D 1/22; flushing devices operated by pressure of the water supply system and discharging variable quantities of water E03D 3/12)
{
also cisterns with bell siphons in combination with flushing valves
}
E03D 1/141
. . .
{
in cisterns with tube siphons and with tube siphons in combination with flushing valves
}
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E03D 1/142
. . .
{
in cisterns with flushing valves
}
E03D 1/144
. . . .
{
having a single flush outlet and an additional float for delaying the valve closure
}
E03D 1/145
. . . .
{
having multiple flush outlets
}
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E03D 2001/147
. . .
{
having provisions for active interruption of flushing
}
E03D 2001/148
. . . .
{
with means to prevent premature closing of flushing valve
}
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E03D 1/16
. .
Cisterns for periodical discharge
E03D 1/165
. . .
{
with bell or tube siphons
}
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E03D 1/18
. .
Cisterns empty when not in action,
{
e.g. with pressure tanks, with swivel-mounted cisterns
}
E03D 1/183
. . .
{
with bell or tube siphons
}
E03D 1/186
. . .
{
with flushing valves
}
E03D 1/20
. .
Cisterns with tiltably-mounted containers
{
for operation, e.g. by the seat E03D 5/04
}
E03D 1/22
. .
Twin or multiple flushing cisterns
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E03D 1/24
.
Low-level flushing systems
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E03D 1/26
. .
Bowl with flushing cistern mounted on the rearwardly extending end of the bowl (shape or material of the cistern E03D 1/01; constructional features of the bowl E03D 11/02 to E03D 11/12)
E03D 1/263
. . .
{
provided with a bell or tube siphon
}
E03D 1/266
. . .
{
exclusively provided with flushing valves as flushing mechanisms
}
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E03D 1/28
. .
Bowl integral with the flushing cistern
E03D 1/283
. . .
{
provided with a bell or tube siphon
}
E03D 1/286
. . .
{
provided with flushing valves
}
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E03D 1/30
.
Valves for high or low level cisterns; Their arrangement (inlet valves, valves in general F16K)
{
Flushing mechanisms in the cistern, optionally with provisions for a pre-or a post- flushing and for cutting off the flushing mechanism in case of leakage (flushing valves E03D 1/142, E03D 1/186, E03D 1/266, E03D 1/286)
}
E03D 1/302
. .
{
with valves kept in open position by means of air or water pressure or by vacuum
}
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E03D 1/304
. .
{
with valves with own buoyancy
}
E03D 1/306
. . .
{
with articulated valves
}
E03D 1/308
. .
{
with articulated valves (E03D 1/306 takes precedence)
}
E03D 1/32
. .
Arrangement of inlet valves (devices for reducing noise E03D 9/14)
{
noise-reducing means E03D 11/00
}
E03D 1/33
. .
Adaptations or arrangements of floats (actuating-floats in general F16K 33/00)
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E03D 1/34
. .
Flushing valves for outlets; Arrangement of outlet valves
E03D 1/35
. . .
Flushing valves having buoyancy
E03D 1/36
. .
Associated working of inlet and outlet valves
E03D 1/38
.
Adaptations or arrangements of flushing pipes (noise-absorbing means in pipe systems F16L 55/00)
{
noise-reducing means in the flushing mechanism not in combination with flushing valves E03D 11/00; provisions in the flushing pipe for evacuating leakage water from the cistern
}
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Flushing devices operated by pressure of the water supply system
{
flushing valves not connected to the water-supply main, also if air is blown in the water seal for a quick flushing
}
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E03D 3/02
.
Self-closing flushing valves (self-closing valves in general F16K 21/04)
E03D 3/04
. .
with piston valve and pressure chamber for retarding the valve-closing movement
E03D 3/06
. .
with diaphragm valve and pressure chamber for retarding the valve-closing movement
E03D 3/08
. .
with other retarding devices
E03D 3/10
.
Flushing devices with pressure-operated reservoir, e.g. air chamber
E03D 3/12
.
Flushing devices discharging variable quantities of water (flushing cisterns discharging variable quantities of water E03D 1/14)
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Special constructions of flushing devices (in motor vehicles or trailers B60R 15/00; in railway carriages B61D 35/00; in ships B63B 29/14; in aircraft B64D 11/02),
{
e.g. closed flushing system
}
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E03D 5/003
.
{
Grey water flushing systems
}
E03D 5/006
. .
{
Constructional details of cisterns for using greywater
}
E03D 5/01
.
using flushing pumps
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E03D 5/012
.
combined with movable closure elements in the bowl outlet (bowls with closure elements between bottom or outlet and outlet pipe E03D 11/10)
E03D 5/014
. .
with devices for separate removal of liquids and solids
E03D 5/016
.
with recirculation of bowl-cleaning fluid
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E03D 5/02
.
operated mechanically or hydraulically (E03D 5/01, E03D 5/12 take precedence)
{
(or pneumatically) also details such as push buttons, levers and pull-card therefor
}
E03D 5/022
. .
{
Operating automatically (E03D 5/10 takes precedence)
}
E03D 5/024
. .
{
Operated hydraulically or pneumatically
}
E03D 5/026
. .
{
Devices preventing overflow or locks inhibiting the use of the flushing system (devices preventing overflow of the bowl contents and seals for the bowl outlet E03D 11/00); Devices preventing sucking-up of sealing and flushing water
}
E03D 5/028
. .
{
Pusher plates and actuating mechanisms for built-in cisterns
}
E03D 5/04
. .
directly by the seat or cover
{
combined with devices for opening and closing shutters in the bowl outlet and/or with devices for raising and lowering seat or cover; Raising or lowering seat and/or cover by flushing or by the flushing mechanism
}
E03D 5/06
. .
directly by the door
E03D 5/08
. .
directly by the foot
{
combined with devices for opening or closing shutters in the bowl outlet and/or with devices for raising or lowering seat and cover and/or for swiveling the bowl
}
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E03D 5/09
. .
directly by the hand
E03D 5/092
. . .
the flushing element, e.g. siphon bell, being actuated through a lever
E03D 5/094
. . .
the flushing element, e.g. siphon bell, being actuated through a cable, chain or the like
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E03D 5/10
.
operated electrically (E03D 5/01, E03D 5/12 take precedence),
{
e.g. by a photo-cell; also combined with devices for opening or closing shutters in the bowl outlet and/or with devices for raising/or lowering seat and cover and/or for swiveling the bowl
}
E03D 5/105
. .
{
touchless, e.g. using sensors
}
E03D 5/12
.
discharging periodically (high-level cisterns for periodical discharge E03D 1/16)
Wheeled lavatories (wheeled closets without flushing A47K 11/00; construction of land vehicles B62)
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Sanitary or other accessories for lavatories (hand tools for cleaning the toilets bowl A47K 11/10; seats or covers for closets A47K 13/00; body supports, other than seats for closets A47K 17/02; devices for preventing contamination of drinking-water pipes E03C 1/10)
{
Devices for cleaning or desinfecting the toilet room or the toilet bowl; Devices for eliminating smells (cleaning, desinfecting or deodorising the seat A47K 13/30)
}
E03D 9/002
.
{
Automatic cleaning devices
}
E03D 9/005
.
{
Devices adding desinfecting or deodorising agents to the bowl
}
E03D 9/007
.
{
Devices for eliminating smells by diffusing deodorants in lavatories
}
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E03D 9/02
.
Devices adding a disinfecting, deodorising, or cleaning agent to the water while flushing (apparatus for disinfection A61L 2/00; treatment of water in general C02F)
E03D 9/022
. .
{
consisting of solid substances introduced in the bowl or the supply line
}
E03D 2009/024
. .
{
using a solid substance
}
E03D 2009/026
. .
{
using a gel-form substance
}
E03D 2009/028
. .
{
using a liquid substance
}
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E03D 9/03
. .
consisting of a separate container with an outlet through which the agent is introduced into the flushing water, e.g. by suction;
{
Devices for agents in direct contact with flushing water
}
E03D 9/031
. . .
{
Devices connected to or dispensing into the flushing pipe
}
E03D 9/032
. . .
{
Devices connected to or dispensing into the bowl
}
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E03D 9/033
. . .
{
Devices placed inside or dispensing into the cistern
}
E03D 9/035
. . . .
{
Devices connected to the actuation mechanism (E03D 9/036 takes precedence)
}
E03D 9/036
. . . .
{
Scoop-like devices
}
E03D 9/037
. . . .
{
Active dispensers, i.e. comprising a moving dosing element (E03D 9/035 takes precedence)
}
E03D 9/038
. . . .
{
Passive dispensers, i.e. without moving parts
}
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E03D 9/04
.
Special arrangement or operation of ventilating devices (ventilating rooms in general F24F)
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E03D 9/05
. .
ventilating the bowl
E03D 9/052
. . .
using incorporated fans
E03D 9/06
.
Auxiliary chambers with water connection to the flushing pipe and adapted to receive utensils for bowl-cleaning, e.g. brushes
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E03D 9/08
.
Devices in the bowl producing upwardly-directed sprays; Modifications of the bowl for use with such devices (showers A47K 3/28; bathing devices for special therapeutic or hygienic purposes A61H 33/00, for specific parts of the body A61H 35/00);
{
Bidets; Combinations of bowls with urinals or bidets; Hot-air or other devices mounted in or on the bowl, urinal or bidet for cleaning or disinfecting
}
E03D 9/085
. .
{
Hand-held spray heads for bidet use or for cleaning the bowl
}
E03D 9/10
.
Waste-disintegrating apparatus combined with the bowl
{
special flushing devices E03D 5/00
}
E03D 9/12
.
Means to prevent freezing of lavatories
E03D 9/14
.
Noise-reducing means combined with flushing valves (noise-absorbing means in pipe systems F16L 55/00)
{
if not incombination with flushing valves E03D 11/00; noise-reducing means in valves in general F16K 47/00
}
E03D 9/16
.
Water pressure regulating means in flushing pipes
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Other component parts of water-closets (pipe-joints or couplings in general F16L)
{
e.g. noise-reducing means in the flushing system (noise-reducing means in combination with flushing valves E03D 9/14), flushing pipes mounted in the bowl, seals for the bowl outlet, devices preventing overflow of the bowl contents; devices forming a water seal in the bowl after flushing, devices eliminating obstructions in the bowl outlet or preventing backflow of water and excrements from the waterpipe
}
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E03D 11/02
.
Water-closet bowls (auxiliary chambers with connections to flushing water for bowl-cleaning utensils E03D 9/06; modified for using upwardly-directed sprays E03D 9/08; seats or covers A47K 13/00)
{
Bowls with a double odour seal optionally with provisions for a good siphonic action; siphons as part of the bowl (parts or details of bowls E03D 11/13)
}
E03D 11/025
. .
{
Combined with wash-basins, urinals, flushing devices for chamber-pots, bed-pans, or the like
}
E03D 11/04
. .
Bowls of flat shape with only slightly inclined bottom
{
Squat-type closets
}
E03D 11/06
. .
Bowls with downwardly-extending flanges
{
for the sake of flushing
}
E03D 11/08
. .
Bowls with means producing a flushing water swirl
E03D 11/10
. .
Bowls with closure elements provided between bottom or outlet and the outlet pipe; Bowls with pivotally supported inserts
E03D 11/11
. .
Bowls combined with a reservoir, e.g. containing apparatus for disinfecting or for disintegrating
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E03D 11/12
.
Swivel-mounted bowls, e.g. for use in restricted spaces
{
slidably or movably mounted bowls; combinations with flushing and disinfecting devices actuated by the swiveling or sliding movement of the bowl
}
E03D 11/125
. .
{
Height adjustable bowls
}
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E03D 11/13
.
Parts or details of bowls; Special adaptations of pipe joints or couplings for use with bowls
{
e.g. provisions in bowl construction preventing backflow of waste-water from the bowl in the flushing pipe or cistern, provisions for a secondary flushing, for noise-reducing
}
E03D 11/135
. .
{
Supports for bowls
}
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E03D 11/14
. .
Means for connecting the bowl to the wall, e.g. to a wall outlet
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E03D 11/143
. . .
{
Mounting frames for toilets and urinals
}
E03D 11/146
. . . .
{
with incorporated cistern (wall bluilt-in flushing cisterns, connecting a cistern to the wall E03D 1/012)
}
E03D 11/16
. .
Means for connecting the bowl to the floor, e.g. to a floor outlet
E03D 11/17
. .
Means for connecting the bowl to the flushing pipe
E03D 11/18
.
Siphons (for pipes in general F16L 43/00, F16L 45/00)
{
if as part of the bowl E03D 11/02; connecting the siphon to the bowl
}
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Urinals (without flushing devices A47K 11/00)
{
Means for connecting the urinal to the flushing pipe and the wastepipe; Splashing shields for urinals
}
E03D 13/002
.
{
intended for use by women
}
E03D 13/005
.
{
Accessories specially adapted for urinals
}
E03D 13/007
.
{
Waterless or low-flush urinals
}
; Accessories therefor (siphons E03C 1/281)
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E03D 2201/00
Details and methods of use for water closets and urinals not otherwise provided for
E03D 2201/20
.
Noise reduction features
E03D 2201/30
.
Water injection in siphon for enhancing flushing
E03D 2201/40
.
Devices for distribution of flush water inside the bowl
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Last Modified: 10/10/2013