Famous Patents
William F. Semple, a dentist, was awarded the first US Patent on chewing gum in 1869. His recipe contained powdered chalk.
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 |
| 7331883 | Spinning nut basketball elevator system The present invention relates to an apparatus and method for adjusting the height of a basketball backboard and hoop assembly. One embodiment of the present invention may include an adjustment arm in telescoping relation with a threaded rod. The present invention ma... | 02/19/2008 |
| 7225834 | Recreational vehicle valve and connector assembly for rinsing a sewer hose A valve and connector assembly for interconnection with and rinsing of sewage hoses including sewage discharge hoses and connectors for Recreational Vehicles. The assembly comprises a connector for interconnection with a sewage hose having connectors compatible with... | 06/05/2007 |
| 7216676 | Apparatus and method for shaping hose A shaped hose assembly includes a length of hose having an external surface and a hose form including a non-continuous, generally curved wall that extends around the circumference of the external surface of the hose. The wall includes a first axially extending end a... | 05/15/2007 |
| 7198066 | Device for supporting and stabilising a tubing for fluid transport and such a tubing The present invention relates to an anti-kinking device, in particular for supporting and stabilising an infusion tubing for fluid infusion in a safety loop, comprising means for receiving and fixing the infusion tubing in connection with a catheter inserted into a ... | 04/03/2007 |
| 7137729 | Gravimetric dosing and mixing apparatus for a plurality granular products A gravimetric dosing apparatus includes a support frame, a plurality of loading hoppers for a respective granular material to be dosed, carried by the support frame and provided with a respective discharge outlet and an opening-closing device for their respective di... | 11/21/2006 |
| 7063102 | Air tap assembly An air tap assembly includes an air pipe having an outer wall formed with a plurality of locking members, and a valve cap rotatably and movably mounted on the air pipe and having an inner wall formed with a plurality of locking members. Thus, the locking members of ... | 06/20/2006 |
| 6969044 | Apparatus for controlling a fluid discharge An apparatus for controlling a fluid discharge through an opening in a conduit includes a conduit section, conduit inlet, conduit interior, conduit exterior, and a conduit outlet or opening having a continuously curved perimeter surface with oppositely disposed conc... | 11/29/2005 |
| 5911402 | Aquarium drainage assembly The present relates to an aquarium drainage assembly comprising a pipe member having an inner nipple adapted to be mounted within a designated opening formed in a wall of the aquarium and an outer nipple extending outside the aquarium. The inner nipple is... | 06/15/1999 |
| 5620015 | Flush valve A valve for sealing a pipe opening with a seal plate movably attached to the pipe opening and a valve body fixed to the pipe opening. Moving the seal plate towards the pipe opening closes the valve, and moving the seal plate away from the pipe opening ope... | 04/15/1997 |
| 5564825 | Integral inlet valve and mixer to promote mixing of fluids in a tank A mixer for mixing and blending fluids within a vessel includes a passageway through which fluid is dispensed within the vessel and a flow diverter spaced from the passageway. Fluid impinges on the flow diverter and is directed toward the walls of the ves... | 10/15/1996 |
| 5535784 | Aircraft waste system drain valve A drain valve assembly for positively sealing an aircraft waste system drain line to prevent waste fluid leakage and the formation of so-called "blue ice" due to such leakage during high altitude flight. The valve assembly has an inlet for connection to t... | 07/16/1996 |
| 5529283 | Variable flow directional valve for cooling towers A valve housing using a reciprocable valve disc plate for opening and closing off the water supply in the valve housing, as well as regulating the water flow between a fully closed and a fully open position. The disc plate is provided with guide follower ... | 06/25/1996 |
| 5490745 | Device for metering and entraining a product into a gas stream A device for metering and entraining a measured quantity of a dry, powdered and/or granular product with a gas stream moving in a conduit system. The device includes a hollow housing having a gas inlet opening and a gas and product outlet opening to and f... | 02/13/1996 |
| 5428957 | Exhaust stack stopper A device is disclosed for shutting off the flow of exhaust gases from the exhaust outlet of a diesel engine having a substantially vertical exhaust stack. The device is especially useful for stopping the flow from one of twin diesel stacks when a tractor ... | 07/04/1995 |
| 5392826 | Aircraft waste system drain valve A drain valve assembly for positively sealing an aircraft waste system drain line to prevent waste fluid leakage and the formation of so-called "blue ice" due to such leakage during high altitude flight. The valve assembly has an inlet for connection to t... | 02/28/1995 |
| 5340241 | Device for metering and entraining a product into a gas stream A device for metering and entraining a measured quantity of a dry, powdered and/or granular product with a gas stream moving in a conduit system. The device includes a hollow housing having a gas inlet opening and a gas and product outlet opening to and f... | 08/23/1994 |
| 5324001 | Sewer transfer system A sewage transfer system connecting the sewer outlet of a recreational vehicle to a remote sewer collection inlet that include a primary sewer line to connect the vehicle sewer outlet; an L-shape rigid pipe associated with the primary sewer line; and a hu... | 06/28/1994 |
| 5248124 | Remote water shut-off module for use by disabled and infirm A single-unit, remote shut-off module for use by the disabled and infirm has a single-unit module attached by clamps to external water source and outflow connector pipes and housing a shaft which itself houses a plunger with a rubber ball seal which is gu... | 09/28/1993 |
| 4872640 | Valve apparatus The invention is a normally-closed valve apparatus for mounting within a vessel containing a product, such as a fluid, gas, or liquid. The valve apparatus comprises an actuator assembly. It also comprises a valve body assembly having a product passage wit... | 10/10/1989 |
| 4739964 | Diffuser valve A controllable valve adapted to be fixed in the wall of a storage hopper containing particulate materials and operable to dispense an air blast into the interiors of the hopper to loosen the materials in the region of the valve.... | 04/26/1988 |
| 4733689 | Fluid pressure activated valve A valve for use with irrigation systems. The valve is fluid pressure actuated and includes a two part movable upper valve body portion which seals about the mouth of a pipe. A pedestal is threadably secured to the pipe and guides the movable valve body. T... | 03/29/1988 |
| 4699354 | Retrofit device for alfalfa valves A device is described to retrofit an alfalfa valve, without modification of the valve, to convert it from manual to pneumatic control and provide means for closure of the valve if operating pressure to the system is interrupted. The device comprises a fir... | 10/13/1987 |
| 4685828 | Irrigation channel gate An irrigation ditch gate, comprising port means for defining a passage for conduction of water, configured for mounting in a wall of an irrigation ditch and attached to a frame. A plate means comprising a generally circular plate is pivotally mounted on t... | 08/11/1987 |
| 4607795 | Spray head assembly A spray head assembly is made from a very few number of injection molded parts. Preferably a pair of elongated housing shells fit together in face-to-face confrontation, with a spring biased actuator arm or control lever pivotally mounted between them. Th... | 08/26/1986 |
| 4546789 | Valved access fitting A valved fitting for a sewer or drain line access is described which permits easy sewer line entry. The fitting includes a large-straight-bore valve body and a housing which is adapted for connection to a sewer line. Embodiments include removable and perm... | 10/15/1985 |
| 4537563 | Ram pumps An improved ram pump of the type having a pump housing (7) an inlet (8) for intake of fluid, a reservoir (10) for supply of a dynamic fluid head to the pump, a release valve mechanism (11) for exhaust of fluid from the pump and a lift valve mechanism (12)... | 08/27/1985 |
| 4527743 | Spray head assembly A spray head assembly is made primarily from a very few number of injection molded parts. Preferably a pair of elongated housing shells fit together in face-to-face confrontation, with a spring biased actuator arm or control lever pivotally mounted betwee... | 07/09/1985 |
| 4489914 | Valve assembly The valve assembly of the present invention is intended for use, within a section of pipe, to control the flow of a fluid within the pipe. The invention discloses an arrangement in which two sections of concentric pipe are slidable with respect to each ot... | 12/25/1984 |
| 4484728 | Rolling seal sluice gate A sluice gate including a closure member comprising a sheet of flexible fabric reinforced polymeric material having pairs of reinforcing members extending horizontally across the sheet with one member of each pair located on the upstream side and the othe... | 11/27/1984 |
| 4475571 | Sewer relief valve An improved sewer relief valve which is vandal-proof and automatically opens responsive to a back flow of sewage and drain water within a plumbing system.... | 10/09/1984 |
| 4439875 | Toilet A portable toilet having an improved valve arrangement for minimizing abrasion of the holding tank inlet seal. The valve arrangement includes a valve member which moves generally normal to a sealing plane defined by the seal when the valve is opened or cl... | 04/03/1984 |
| 4392509 | Furnace valve A furnace valve suitable for use in an electric furnace in the manufacture of mineral fibre comprising a water cooled sleeve provided with a carbonaceous member which is formed with a flow passage extending therethrough and a shutter plate movable across ... | 07/12/1983 |
| 4340081 | Irrigation valve apparatus Valve apparatus for controlling the flow of irrigation water includes a valve plate in the irrigation water line, and a piston connected to the valve plate and movable in a cylinder, with fluid pressure in the cylinder opposing the movement of the valve p... | 07/20/1982 |
| 4332276 | Fuel hose drainage apparatus A venting valve for a cargo hose includes a cover plate attachable to the hose, the plate having an opening which receives a coupling to a check valve. The check valve prevents escape of fuel but admits air to permit fuel to drain from the hose into an at... | 06/01/1982 |
| 4220420 | Sealing means, primarily for a sluice gate A sealing arrangement primarily for a sluice gate which comprises a frame and a door movable between an open position and a closed position in which it closes an opening in the frame and sealing faces of the door and the frame are in sealing engagement to... | 09/02/1980 |
| 4205698 | Detachable water pipe freeze preventing device An improved device for easy attachment to an external water spigot, which is designed to allow a slight dripping of water when ambient temperatures drop below a point at which there is a danger of water freeze, within house pipes or spigot. The present de... | 06/03/1980 |
| 4191257 | Sprinkler-sealing device A sprinkler-sealing device has a control member which can be coupled to a manually used operating rod system to activate a sealing element intended to seal the nozzle opening of a sprinkler against water. A housing is provided comprising recesses and guid... | 03/04/1980 |
| 4184662 | Valve for controlling solids flow A fluidized solids control valve is disclosed that is particularly well adapted for use with a flow of coal or char that includes both large particles and fines. The particles may or may not be fluidized at various times during the operation. The valve in... | 01/22/1980 |
| 4132385 | Cam-lock water gate A cam-lock water gate designed to control water flow from a pond, lake, field, canal or the like. A primary body member is provided with an aperture therethrough and a short section of pipe stub integral with the main body member and opening into said ape... | 01/02/1979 |
| 4118208 | Discharge means for canister vacuum cleaner A canister type vacuum cleaner having cylindrical walls and a bottom therein supporting at the upper open end thereof a suction type blower and filter is provided with discharge means attachable to the bottom of the canister and including a transverse sli... | 10/03/1978 |
