Bizarre Patents
A helium-filled sun shade for protecting individuals engaged in outdoor activities.
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 |
| 6666229 | Noise reducing housing for toilet tank fill valve A fill valve assembly for a toilet tank which reduces the fluid noise associated with filling of the tank. The fill assembly includes a fill tube mounted within the tank for delivering water. A fill housing is mounted to the upper end of the fill tube and... | 12/23/2003 |
| 6370708 | Toilet tank anti-refill device A combination of a toilet and an anti refill device, the toilet comprises a bowl, a tank connected to the bowl for storing water and to supply the stored water to the bowl, a flushing structure which releases water from the tank into the bowl, a supply va... | 04/16/2002 |
| 5836346 | Pilot operated diaphragm fill valve An adjustable height fill valve assembly for controlling water level in a storage tank, comprises a lower riser assembly comprising concentrically disposed inlet riser and an outer riser housing, each having an upper end and a lower end, the inlet riser a... | 11/17/1998 |
| 5772928 | Needle and seat valve assembly A valve assembly is provided for controlling the flow of fuel to the fuel chamber of a carburetor. The valve assembly includes a housing and a needle. The housing includes a side wall defining an inlet, an outlet in fluid communication with the inlet, and... | 06/30/1998 |
| 5156197 | Float type liquid level meter A float type liquid level meter is provided having an enhanced resistance against vibration transmitted from outside of the float type liquid level meter. The inventor obtained a finding that an external vibration is amplified with a connecting lever whic... | 10/20/1992 |
| 5141644 | Buoyed flapper valve A buoyed flapper valve comprises a flapper which is capable of closing an exit of a dipleg or standpipe, which is also connected to a counterweight and a float. The float has sufficient buoyancy to as to overcome the weight of the counterweight when the v... | 08/25/1992 |
| 5072751 | Valve assembly A valve assembly includes a tubular member, a hollow case connected to an open end of the tubular member, a linkage having a first end pivotally connected to the hollow case, a float connected to a second end of the linkage, and a control valve member mov... | 12/17/1991 |
| 4628956 | Float valve mechanism A float valve mechanism comprising a housing 13 defining a closed chamber 14 having an inlet 12 and an outlet 22. The chamber 14 is closed by a cap 17 threaded on to it. The valve head 32 has a conical surface 34 engaging a conical valve seat 33 and a ski... | 12/16/1986 |
| 4453563 | Non-chattering float controlled pilot operated diaphragm valve A non-chattering, float-controlled, pilot-operated diaphragm valve for controlling the flow of liquids from a conduit under pressure to a tank where the surface is in turbulent condition. The lightweight float and pilot valve follow the relatively high fr... | 06/12/1984 |
| 4399835 | Water saving toilet control valve A toilet holding tank water inlet valve of the type utilizing a flexible valve element formed as a portion of a pressure chamber and having a control stem associated with the pressure chamber and a pivot arm associated with the control stem is improved by... | 08/23/1983 |
| 4110849 | Apparatus and method for conserving water An apparatus and method for conserving water during the flush cycle of a tank-type toilet. The apparatus includes a pivotally mounted lever arm having a water-fillable weight on one end and a toilet tank float engagement means on the other end. The water-... | 09/05/1978 |
