U.S. patents available from 1976 to present.
U.S. patent applications available from 2005 to present.

Icon_funbox Did You Know...

...that a workman who left the soap mixing machine on too long was responsible for making Ivory Soap? He was so embarrassed by his mistake that he threw the mess in a stream. Imagine his dismay when the evidence of his error floated to the surface! Result: Ivory soap, the soap that floats.

Newsletter  PatentStorm News

Make the Most of Our Site

See this month's Top Inventors and Most Cited Patents.

Stay on top of the latest innovations by subscribing to an RSS feed.

Registered users: Manage your profile.

 

Class 4/354 - Pressure tank


Subclass of Class 4 - Baths, closets, sinks, and spittoons
Definition: Subject matter wherein the tank is hermetically sealed and
No. of patents: 61
Last issue date: 04/13/2010


1    
NumberTitleIssue Date
7694355Pressure vessel
A pressure vessel at least includes a main vessel, an air entry valve, a water entry valve, a drain valve and a control valve. The drain valve is provided with a valve base set on the top of the main vessel, a piston unit inserted inside the valve base able to be mo...
04/13/2010
7653951Flushing device comprising a pressurized chamber and evacuation fitting for a flushing device and system comprising a flushing device and a toilet bowl
A flushing device comprising an evacuation fitting (6) that is provided with a sealing member (7) within a pressurized container (2). The sealing member (7) is lifted counter to the pressure of a piston (16) in order to initiate th...
02/02/2010
7617545Noise suppression flush cartridge for pressure assisted toilet
An apparatus for initiating a flush of a pressure assisted toilet includes a generally cylindrical housing having a top end, a bottom end, an internal surface and a discharge aperture having a first predetermined area. The apparatus also includes a first member at l...
11/17/2009
7322053Pressurized toilet cistern
A toilet-flushing (1) device comprises a container (2) divided by an elastic diaphragm (3) with a direct unrestricted connection to a water supply under pressure at the lower part of the container (2), with a flushing valve (15) al...
01/29/2008
7299508Pressurized flush system
A pressurized flush system includes a pressure water vessel having an inlet and an outlet. An infill valve, an open valve, and a flush valve are provided with the flush valve disposed within the pressure vessel and in fluid communication with the infill valve and th...
11/27/2007
7272864Flushing flow distributor for a flushing cistern, flushing system having a flushing flow distributor of this type and toilet system having a flushing flow distributor
The flushing flow distributor has a first channel (21) which is to be connected to a discharge (45) of the flushing cistern (4), and a second and a third channel (24, 25, 69). The second channel (24) and the third channel (25
09/25/2007
7214216Drainage chamber for collecting body fluids, in particular liquor
A drainage chamber for collecting body fluids, in particular liquor, includes a collecting area limited by an outer wall for collecting the body fluid, an inlet connection linked to the collecting area for linking to a drainage catheter (an intraventricular catheter...
05/08/2007
7207073Vacuum assisted toilet
A toilet is provided with a vacuum to assist in the flushing process. The vacuum is provided downstream between the toilet bowl and a waste outlet to draw the waste contents of the toilet bowl and out of the toilet bowl to the waste outlet under pressure. A controll...
04/24/2007
7171701Pressure-flushing device
The pressure-flushing device comprises a pressure vessel (2), which, for receiving flushing water, has a pressure chamber (D). The pressure chamber (D) can be filled with flushing water by means of an inlet valve (7). The pressure chamber (D) consists ...
02/06/2007
7137156Portable Lavatory
A portable lavatory, which is easily loaded into a freight box of a truck and is maintained in a stable loaded state in the freight box during transportation, is disclosed. In the portable lavatory (10), the capacities of both a fresh water tank (20) a...
11/21/2006
7096517Flushing device for a lavatory
A flushing device includes a cistern, in which at least one pressure chamber is arranged with a supply line for water and a discharge valve. At least part of the flushing water may be pressurised in the pressure chamber and may be discharged for flushing through the...
08/29/2006
7063098Flush cartridge apparatus and method of use
Specifically, the present invention is a flush cartridge apparatus used in the controlled removal of accumulated debris from a water distribution system used within a residential and/or commercial structure. The flush cartridge apparatus is generally cylindrically s...
06/20/2006
7028347Digital electronic volume/flow control sensor toilet
A digital electronic volume/flow control sensor toilet includes a bowl, a water storage tank interconnected with the bowl, and a digital electronic volume/flow control sensor flushing mechanism. The flushing mechanism has components including a volume sensor, a shut...
04/18/2006
7010816Pressure assisted dual flush operating system
A pressure assisted dual flush operating system includes a vessel for receiving, containing and discharging pressurized water and an outlet for discharge of water from said vessel. An anti-siphon valve includes an air inlet for introducing water into said vessel and...
03/14/2006
6934976Toilet flusher with novel valves and controls
A tank-type flusher includes an intake valve, i.e., a fill valve, a diaphragm-operated flush valve, and a pressure control mechanism. The intake valve is connected to an external water source and is constructed to close water flow to a water storage tank at about a ...
08/30/2005
6907623Pressurized water closet flush system
A pressurized water closet flushing system for flushing a toilet includes a water vessel having at least one opening for receiving water. A fill tube and a discharge tube extending into the vessel are secured to the vessel. A modular assembly cap including an intake...
06/21/2005
6834399Pressure vessel
A pressure vessel has a tank portion for preserving water and a drain mechanism mounted on the tank portion. An outlet is defined at a bottom of the tank portion for draining water. A through hole is defined at a top of the tank portion and corresponding to the outl...
12/28/2004
6647559Flushing unit for a toilet
The present invention relates to a flushing unit for a toilet which allows water in a flushing tank to be discharged rapidly by means of the change of water pressure and working of a piston, so that only a small quantity of water is required to wash out t...
11/18/2003
6550076Valve assembly for a pressure flush system
A pressure flush system for use within a toilet tank includes a pressure flush tank having an inlet port and a discharge port, an air inlet, and a valve assembly. The valve assembly includes a generally cylindrical housing, a water inlet in fluid communic...
04/22/2003
6470505Water efficient toilet
A water efficient toilet includes a self pressurized tank connected to a water supply through conduits and includes a valve operatively connected to the conduits. The toilet assembly has a bowl with inner walls, the bowl having a lower reservoir connected...
10/29/2002
6467101Toilet flushing and cleaning device
A toilet flushing and cleaning device includes a reservoir with a cylinder and a mixing tube disposed therein. The cylinder communicates with a water source. A plunger is slidably disposed in the cylinder. A plurality of spray nozzles communicate with the...
10/22/2002
6457187Pressurized water closet flushing system
A pressurized flushing system for discharging liquid into a toilet bowl. The mechanism comprises a sealed container for storing a pre-determined volume of the liquid under pressure having an inlet for connection to a liquid supply source under pressure an...
10/01/2002
6453479Flusher having consistent flush-valve-closure pressure
A tank-type flusher including an intake valve, a diaphragm-operated flush valve, a pressure control mechanism. The intake valve is connected to an external water source and constructed to close water flow to a water storage tank at about a predefined wate...
09/24/2002
6367095Flushing device for a toilet
A flushing device has two water outlets, wherein one outlet is connected to an arch of a trap of the toilet bowl. This outlet is connected to means with which a portion of the flushing water present in a flushing tank can be pressurized and released to th...
04/09/2002
6360378Pressurized water closet flushing system
A pressurized water closet operating system comprises an accumulator vessel for storing water and air under pressure. A flush valve controls the discharge of water from the vessel and comprises a cylinder having a lower end in fluid communication with the...
03/26/2002
6343387Volume control for a water closet
A removable volume control apparatus 140 for a pressurized water closet 10 comprises a generally right circular cylindrical 150 insert open at both ends having a plurality of slots 154 in the bottom edge 152 thereof. A flange 142 depending from an annular...
02/05/2002
6279176Low water toilet
A low volume high-pressure toilet. When the user sits on the toilet seat, a hydraulic piston pressurizes the water tank, which optimally holds 1.7 liters of water. Water is released at high pressure through the toilet interior rim and a lower waterjet, fo...
08/28/2001
6219855Toilet bowl in combination with pressurized flush tank
A toilet bowl in combination with a pressurized flush tank is presented wherein the pressurized tank has a spring, a float piston, a water inlet control valve set, a water discharge control unit and a container lid. The water inlet control valve set inclu...
04/24/2001
6029287Power flush tank with volume reduction tube
A pressure flushing system for use within a toilet tank includes a pressure tank which has a predetermined volume. There is a water outlet for the tank, a water inlet for the tank, and an air inlet for the tank. The air inlet is associated with the water ...
02/29/2000
6029288Power flush tank with improved air inducer
A pressure flushing system for use in a toilet tank includes a housing with a water inlet conduit, an air and water inlet assembly connected to the conduit and to the housing, and a water outlet for the housing. There is a flush valve within the housing f...
02/29/2000
5970527Pressurized water closet flushing system
A pressurized water closet operating system comprises a water vessel, an external manifold mounted directly on said vessel, and an internally mounted flush valve assembly. The manifold comprises a water pressure regulator, an air induction system, and a m...
10/26/1999
5926860Low profile vacuum toilet
A vacuum assist toilet provides an efficient flushing in a tank of relatively low height. A container assembly (36) includes a largely sealed container (34) that lies within the tank (12) to hold water that is dispensed in a flushing so as to create a vac...
07/27/1999
5857224Pressure flush tank for use in a toilet enclosure
A pressure flush tank for toilets is formed and adapted to be located within a toilet enclosure and is preferably formed of a non-metallic material such as plastic. The pressure flush tank has an essentially rectangular vertical cross section and an essen...
01/12/1999
5802628Pressure flushing device discharge extension
A pressure flush system for use within a toilet tank includes a pressure flush tank which has an air inlet and a water inlet. Water is maintained with the pressure flush tank under air pressure. There is a water discharge for said tank to direct water to ...
09/08/1998
5797582Distribution device for feeding a capacitor with gaseous fluid
A dispensing device (1) for supplying a gaseous fluid (3) to a space (2) and abruptly emptying said space (2) to deliver its contents to an apparatus (4) once the supply has been cut off. The device (1) is characterized in that to reduce the fluid pressur...
08/25/1998
5742950Apparatus for pressure assisted flush toilets
An apparatus for pressure assisted flush toilets that comprises an air tight enclosed flush tank, a feed valve, a volume control device and a flush valve. The flush tank is normally empty when it is not in use. A push on the feed valve starts a flush cycl...
04/28/1998
5652969Flush apparatus for use with toilet odor venting apparatus
A flushing apparatus for controlling water flow in a toilet flushing system. The flushing system includes a pressure tank and differential-pressure type flush valve that opens when accumulated fluid pressure above a piston is vented to atmosphere. The app...
08/05/1997
5611091Toilet trip lever arm with integral energy absorbing member
A toilet trip lever mechanism for use with pressure flush toilets including a coil-type member formed integrally as part of the lever arm. The coil member acts as a shock absorber during the flushing process to absorb kickback during flushing....
03/18/1997
5596772Toilet flushing system with multi-diaphragm storage container having three fluid receiving chambers
A toilet flushing system includes a fresh water feed, a fluid storage container connected to the fresh water feed, and a supply line coupled to the storage container and a toilet. The fluid storage container has a container casing and first and second sep...
01/28/1997
5553333Pressurized water closet flushing system
An apparatus for flushing a water closet bowl includes a pressurizable reservoir, within which is formed a primary and a secondary pressure zone. Formed at the bottom of the reservoir is an exit aperture through which the pressurized fluid is discharged i...
09/10/1996
1    
 
Sign InRegister
Username  
Password   
forgot password?