Famous Patents
British merchant Peter Durand invented the tin can in 1810.
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.
| Number | Title | Issue Date |
| 7950412 | Non-removable refill restrictor apparatus A toilet refill restrictor apparatus includes an adapter interposed between a fill valve and a refill hose. The adapter is non-removably coupled to the fill valve and is configured with a larger proximal pathway, and a smaller distal metering pathway for restricting... | 05/31/2011 |
| 6962163 | Dual-float snap-action flush valve A liquid level control apparatus for a flush tank includes a valve mechanism communicating with a fill tube and operable between open and closed conditions, two floats, at least one of which is coupled to the valve mechanism for closing it when the at least one floa... | 11/08/2005 |
| 6823889 | Toilet fill valve with adjustable bowl fill flow A toilet fill valve and methods are provided. In one embodiment, the toilet fill valve includes a water inlet and a first water outlet configured to supply water to a toilet tank. The toilet fill valve further includes a bowl fill valve having a bowl fill valve inle... | 11/30/2004 |
| 6712090 | Hydraulic valve A fluid tank valve assembly of the type employed for water tanks for toilets has a tank refill valve located atop a fluid inlet supply tube. The refill valve has a lever that is raised and lowered to open and close the valve. An inverted, cup-shaped hood is position... | 03/30/2004 |
| 6675398 | Diverter for use with tank valves to direct flow to tank or rim A diverter valve for selectively passing water from a ballcock valve directly to a water storage tank or to the rim of a toilet. It includes a diverter plunger which places a deflector into the path of water from the ballcock, and a float which removes th... | 01/13/2004 |
| 6491812 | Ice water cooling system An ice water cooling system for a multi-story building includes an open chemical tank 304 adjacent the bottom of the building 300. The tank includes a float-level ball 310 positioned therein for controlling the flow volume of water from the pipeline circu... | 12/10/2002 |
| 6385788 | Water diverter/saver for toilet tanks An adjustable diverter device situated in a water tank regulates the water level in the tank. The water enters the device at one end and a flow exits through a first vent into the tank. A second vent is located at the opposite end with an adjustment valve... | 05/14/2002 |
| 6311723 | Flow control valve assembly A fluid flow control valve (10) has a piston (43) in a first chamber (45), urged by a spring (46) to close fluid passages (36) interconnecting the first chamber (45) to a second chamber (51). A fluid level sensor (20) in a container (100) allows fluid to ... | 11/06/2001 |
| 6244292 | Ballcock valve for water tanks A ballcock valve with a cap having an opening, and in the opening an axial groove. A valve control has a neck that fits in the opening, and a tooth that fits in the groove, so that when a shoulder on the cap and on the valve control abut, the valve contro... | 06/12/2001 |
| 6219856 | Flow restrictor for water closet refill tube An externally threaded thermoplastic flow restriction member is threaded into the internal bore of a toilet bowl thermoplastic refill tube in interference fit with the tube bore. The restriction member has a bore which is sized to restrict the flow of toi... | 04/24/2001 |
| 6192916 | Flow-limiting float valve A ballcock type flow-limiting valve for refilling a water tank and commode. A vertical riser has an internal inlet water passage connected to the valve base which has a recess surrounding the inlet seat forming a lower discharge chamber. A removable, dome... | 02/27/2001 |
| 5862538 | Toilet flushing device A toilet flushing device is to be installed in a water supply tank and has a diverter valve which permits the supply of high pressure water to the rim flushing conduit of a toilet bowl when the toilet bowl is flushed. The diverter valve has a valve housin... | 01/26/1999 |
| 5815850 | Method and apparatus for chemical dispensing into toilet bowl A toilet bowl cleansing apparatus is positioned in a toilet tank between the toilet bowl refill tube and overflow protection pipe. The apparatus comprises a sealed container having an inlet connected to the refill tube and an outlet communicating with the... | 10/06/1998 |
| 5715860 | Adjustable valve for controlling the amount of water refilling a toilet bowl after flushing An adjustable valve is inserted in a tubular connection extending between an inlet lien and overflow pipe in the flush tank of a flush toilet. By adjusting the rate of flow through the valve, the level of water standing in the toilet is determined.... | 02/10/1998 |
| 5611090 | Toilet flush control assembly and methods A gravity flush toilet system includes a fixture with a water sealed trap and a tank having an overflow tube, a flush valve and a fill valve. A control assembly includes a float assembly with a member for pushing the flush valve toward its closed position... | 03/18/1997 |
| 5598865 | Quick release toilet tank valve A quick release connector enables replacement of a toilet tank valve by one having little, if any, knowledge of repair or skills relating to plumbing. The toilet tank valve includes a quick release connector coupling the toilet tank valve to a source of w... | 02/04/1997 |
| 5594959 | Dual-flush refill apparatus A refill apparatus for a dual flush apparatus comprises a refill tube connected to a refill valve responsive to a drop in water level in a tank to initiate a refill flow of water for refilling the tank and for refilling a trap via an overflow tube, the re... | 01/21/1997 |
| 5542448 | Latch attachment preventing chronic leakage An attachment for float operated valves in a water closet of commode is set forth. In the water closet, the rising water on filling moves a floating bulb or ring which is connected with an arm. The adapter of this invention includes a mounting ring for at... | 08/06/1996 |
| 5452482 | Dual-flush refill control apparatus A refill apparatus for a dual flush apparatus comprises a refill tube connected to a refill valve responsive to a drop in water level in a tank to initiate a refill flow of water for refilling the tank and for refilling a trap via an overflow tube, the re... | 09/26/1995 |
| 5318062 | Readily serviceable differential pressure actuated ballcock valve A tank valve for refilling a water tank. A vertical riser has a passage opening through a valve seat in a body. A flow chamber and a discharge chamber are formed around the valve seat. A cap is secured to the body so as to overlay the chambers. The cap ha... | 06/07/1994 |
| 5287882 | Ball cock assembly float with drain openings A toilet tank ball cock is designed for use in a toilet tank having an operating lever, a flush valve controlled by the operating lever and a water supply, with the ball cock regulating the supply of water to the tank. The ball cock includes a vertical ri... | 02/22/1994 |
| 5211204 | Toilet tank ballcock with detent arm A toilet tank ballcock which includes an adjustable detent arm pivotally mounted above the ballcock float to swing into a latching position below the float and thereby prevent the float from lowering except pursuant to an intentional flush of the tank. Th... | 05/18/1993 |
| 5119845 | Device of water plug noise elimination and water seal flush toilet This invention relates to an improvement of a float valve device, and more particularly to a float valve device including a water plug noise elimination and water seal assembly for flush toilets, with its major features of adding a noise eliminating water... | 06/09/1992 |
| 5027871 | LPG tank control valve system A multi-functional control valve system for an LPG tank. The valve system comprises, on a single frame, a fill port for delivery of LPG from a supply source to the tank, a manual shut-off valve for the fill port, a delivery port, independent from the fill... | 07/02/1991 |
| 5007452 | Bowl fill for a tank valve A tank valve for refilling a toilet tank and simultaneously supplying water to a toilet bowl has a riser, a valve mounted to the riser, a valving chamber in the body of the valve, and a downwardly directed outlet port from the valving chamber. A cuff surr... | 04/16/1991 |
| 4980932 | Water saving device A flow splitting valve assembly is inserted into the afterfill line of a conventional water closest ballcock valve, the valve assembly including adjustable valves for directing some of the afterfill flow into the watercloset. The adjustable valves provide... | 01/01/1991 |
| 4840196 | Bi-stable, three condition flush tank system A flush valve system for a water storage tank. The system includes a standpipe which establishes both an upper water level and a repose water level. A tank valve receives water for the tank. It includes bi-stable control means which retains the most recen... | 06/20/1989 |
| 4781210 | Replacement inlet valve assembly for a toilet tank A replacement inlet valve assembly for use in a toilet tank now having an inlet valve with a water inlet on the side. This invention has a ballcock-operated inlet flush valve with a bottom inlet and a generally S-shaped inlet conduit rigidly attached to t... | 11/01/1988 |
| 4764996 | Water saving device for water closet A water saving device is provided in the form of a plastic compressable flow control tube with a pinch clamp which may be installed as a substitute for the refill tube for the toilet bowel of a water closet, and which may be adjusted to establish the prop... | 08/23/1988 |
| 4730639 | Tank valve with shutter type diverter A two function tank valve according to this invention includes a vertically oriented supply tube or conduit with an upper opening. A valve seat surrounds the opening, and a valve seal is movable against it and away from it. Water level responsive means de... | 03/15/1988 |
| 4709721 | Integral base refill system ballcock assembly An improved ballcock assembly for a toilet water reservoir which provides quiet reservoir refill operation without requiring a conventional water discharge hush tube. Quiet refill operation is provided by discharging refill water through a plurality of op... | 12/01/1987 |
| 4494562 | Float valve system flow proportioning device YA flow proportioning control for proportioning flow from a water level sensing valve. A barrier is positioned downstream from the valve adjacent to a refill line. A restrictor ring is positioned on said barrier with a portion overlying the upper surface ... | 01/22/1985 |
| 4420845 | Float valve assembly with flow control and volume balancing means A valving system capable of maintaining a substantial flow rate to a low profile toilet bowl during bowl wash, bowl flush and refill, and storage tank refill. The system includes a tank refill tube and a bowl wash tube, with an adjustable restriction in o... | 12/20/1983 |
| 4350178 | Ball cock assembly A ball cock assembly (10) mounted to a water supply pipe (12) in a fill tank includes a valve housing (16) in which is mounted a valve (18) for regulating the flow of water through the ball cock assembly (10). The valve housing (16) includes a central pas... | 09/21/1982 |
| 4327941 | Refill hose mounting member and retainer for ball cocks A rigid plastic elbow has a fluid passage formed therethrough from a relatively straight refill hose connecting portion and through a reduced length relatively straight overflow tube discharge portion. The refill hose connecting portion is connectable to ... | 05/04/1982 |
| 4240168 | Combination commode construction An improved combination commode construction including a water closet common to a plurality of commodes, a plurality of separate commode control assemblies on the water closet, each of which assemblies is associated with a respective commode and is actuat... | 12/23/1980 |
| 4145775 | Water saving device for water closet A water saving device is provided in the form of a flow control valve, which may be installed in the refill tube for the toilet bowl of a water closet, and which may be adjusted to establish the proper amount of refill water to flow into the toilet bowl a... | 03/27/1979 |
| 4122862 | Extendible ballcock An extendible ballcock assembly including a support pipe threaded at its lower end for partial receipt in a support fitting. The support fitting furthermore includes a peripheral cavity in the upper end thereof adapted to receive a toroidal seal. The seal incl... | 10/31/1978 |
| 3982557 | Fluid valve with float actuator A fluid flow control valve for automatic fluid level control in a reservoir is provided having a valve chamber with axially aligned inlet and outlet orifices, a valve closure element disposed in the chamber and having an actuating stem projecting outwardl... | 09/28/1976 |
