Bizarre Patents
An aircraft having vertical takeoff and landing capability provided with at least first and second laterally extending paddle wheels rotatable on a central axis perpendicular to the longitudinal axis of the aircraft fuselage and between its nose and tail.
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 |
| 7143783 | Fuel tank cap safety valve with splash control and overpressure release A fuel tank cap provides a safety valve mounted on a tubular vent stem for venting fluids from a fuel tank. The safety valve is adapted for engagement with the tubular vent stem so that the fluids may enter the safety valve. A pair of upper cavities communicate with... | 12/05/2006 |
| 6971533 | Sealing cap for a motor vehicle radiator A pressure cap for a fixed neck of an automobile radiator is provided with an outer cap component and with an inner cap component which has a flow connection between the inside and the outside of the tank and a valve arrangement for releasing and blocking the flow c... | 12/06/2005 |
| 6698611 | Tank cap A tank cap having an upper breather chamber, a lower breather chamber and a separator having a communication bore permitting communication between the chambers. An auxiliary separator in the lower breather chamber is connected to the separator and is prov... | 03/02/2004 |
| 5816430 | Fuel tank vent valve for heaters A jerrycan holds liquid fuel. A cap for the jerrycan includes an air vent valve assembly having an umbrella-shaped check valve. The check valve is sensitive to a pressure differential between an interior of the jerrycan and the atmosphere. As fuel is disp... | 10/06/1998 |
| 5806703 | Safety valve device for packagings containing products to be cooked, cooled, reheated or degassed A safety valve device for packages of products to be cooked, cooled, reheated, or degassed and a package that includes such a safety valve. The valve includes a peripheral portion attached to the package support and a movable flap with an end portion conn... | 09/15/1998 |
| 5732840 | Closure assembly for a tank filler neck A filler neck closure assembly for a vehicle fuel tank filler neck, comprising: a housing configured to be mounted in the filler neck and formed to include a sealing surface and a pressure-relief valve positioned to lie in the housing and provided with a ... | 03/31/1998 |
| 5564480 | Vacuum canister A vacuum canister comprises a container and a lid which is provided with a large slot having centrally in the bottom thereof a retaining hole provided peripherally with ventilation holes. A soft disk member is provided such that a retaining column of the ... | 10/15/1996 |
| 5480054 | Brew-through cap for thermal container A lid assembly for use with a beverage container which retains and dispenses beverages therefrom. The container includes a body having a reservoir chamber and a mouth communicating with the reservoir chamber. The lid assembly is cooperatively attachable t... | 01/02/1996 |
| 5406992 | Self contained evacuation lid Self contained evacuation lid adapted for containers allowing the contents of the container (30) to be stored under a reduced pressure atmosphere after the container (30) has been opened. The evacuation lid forms a closure over the container (30) which in... | 04/18/1995 |
| 5111955 | Non-metallic acid hatch A non-corrosive, non-metallic hatch apparatus is provided for use on a container having a container opening with a container flange surrounding the container opening. A hatch base includes a base flange complementary to and constructed to be bolted to the... | 05/12/1992 |
| 5019345 | Method for sterilizing containers In a method for sterilizing a container, a valve body (30) is supported by a gas chamber (24) which is under atmospheric pressure. As a result when a pressure difference is present a static condition arises and keeps the valve open or closed. The valve ca... | 05/28/1991 |
| 4896689 | Cylinder pressure relief valve In a pressure relief valve, a valve body is provided with an axial bore counterbored from each of its ends to form an inlet port for connection with a container of gas to be monitored and for receiving a valve assembly at its other end opening the valve a... | 01/30/1990 |
| 4796776 | Pressure cooker for microwave ovens A pressure cooker for use in microwave ovens includes a microwave permeable bowl shaped container, a microwave permeable dome cover, and a steel locking ring permanently attached to the cover for maintaining the container and cover in fluid-tight seal dur... | 01/10/1989 |
| 4760863 | Pressure vacuum valve, more particularly to the storage tanks for volatile liquids A pressure vacuum valve arrangment for the fitting to the vent pipe of a tank for the storage of volatile fuel comprises a first valve to open on increasing pressure of the tank to allow escape of air and vapors from the tank and a second valve adapted to... | 08/02/1988 |
| 4511056 | Closure assembly particularly for a radiator filler tube of a motor vehicle A closure assembly particularly useful as a radiator cap for the radiator filler tube of a motor vehicle including bayonet connectors for removably fastening the assembly to a filler tube is formed with a vacuum valve and an excess pressure or relief valv... | 04/16/1985 |
| 4508131 | Safety valving for cargo tanks used for bulk transportation of hazardous commodities Safety valving for cargo tanks used for bulk transportation of hazardous commodities, such as for instance flammables. The valving provides automatic differential pressure relief for the tank, and overturn protection, with the automatic differential press... | 04/02/1985 |
| 4440308 | Fuel cap valve structure A fuel cap has a valve structure for controlling both superatmospheric and subatmospheric pressures in a fuel tank. The valve has a plate or flat disc member with two apertures formed therein. A grommet is secured in each aperture. A pair of resilient val... | 04/03/1984 |
| 4379470 | Closing cap, particularly for a motor vehicle radiator In the housing of a closing cap 2, a valve seat plate 3 is held in place by means of a resilient ring 8 forming at the same time a seal relative to the tank connection to which the closing cap is screwed by its internal thread 1. The valve seat plate 3 su... | 04/12/1983 |
| 4366669 | Tank closure apparatus with safety feature A tank closure apparatus comprising a housing adapted to attach to a tank. A filler-cap assembly seals a liquid filling port of the housing. Passageways carry liquid from this port to openings on a surface of the housing within the tank. A means, responsi... | 01/04/1983 |
| 4351350 | Valving assembly for a liquid-containing tank A valving assembly for a liquid-containing tank comprises a housing which includes vent and valve passageways extending axially therethrough. A roll-over valve is supported in the vent passageway by a spring which is calibrated normally to open the vent p... | 09/28/1982 |
| 4350017 | Cryostat structure The thermal loss incurred through a fill and vent conduit of a cryostat is minimized by inclusion therein of a central coaxial member. Thermal energy transfer is desirably promoted by radiation between the interior surface of the fill and vent tube and th... | 09/21/1982 |
| 4337873 | Fuel cap with poppet type valves A fuel cap has a pair of poppet type valves which control the pressure level within the fuel tank. Each valve member has a seat portion and a valve stem guide portion formed integral with the threaded closure member of the cap. A conical valve member havi... | 07/06/1982 |
| 4266568 | Vacuum breaker-pressure release device A vacuum breaker and pressure release valve for use with fuel storage tanks is disclosed which utilizes an intake check valve and an exhaust check valve to allow air to enter a tank from which fuel is being withdrawn by a pump while preventing air and vol... | 05/12/1981 |
| 4173292 | Valved closure for a pressure vessel A valved closure for a pressure vessel having an upstanding filling neck with a side opening and a retaining flange, a cap-like adaptor in sealing engagement with the neck and removably retained in interfitting relation with the flange, and open insert in... | 11/06/1979 |
| 4142648 | Cap assembly for a fuel tank A cap assembly for a fuel tank filler tube having a low profile housing. The outer shell of the cap is a dome-shaped sheet metal member backed by a dome-shaped impact resistant cap support member secured between the outer shell and the threaded closure po... | 03/06/1979 |
| 4107798 | Self-contained toilet A self-contained toilet comprising a collecting tank, means for rinsing the interior of the collecting tank including a rinsing manifold, a rinsing conduit, and a check valve operatively connecting the rinsing manifold and rinsing conduit, and means for p... | 08/22/1978 |
| 4059113 | Aspirators for medical purposes Vacuum aspirator for medical use of the kind which is required to be sterilized by steam and then evacuated so as to be ready for use. Object of the invention is to provide an aspirator which is suitable for repeated use and re-sterilization. The aspirato... | 11/22/1977 |
| 4036399 | Gas cap with automatic pressure compensation A gas tank cap has an inner part connectable to a gas tank filler pipe and an outer part biased outwardly away from the inner part by a spring and normally freely rotatable relative to the inner part. One or more passages in the cap communicate with the f... | 07/19/1977 |
| 3974936 | Closure cap A closure cap for containers or for use as a pipe socket closure including a rigid partition having a pair of valves acting in opposite directions for automatically compensating for pressure inequalities on either side of the partition. The valves include... | 08/17/1976 |
| 3948414 | Master cylinder diaphragm A cover apparatus for a master cylinder reservoir which has a diaphragm with an expandable surface. A check valve is located in an opening in the expandable surface to limit the pressure differential created thereacross by air at atmospheric pressure on o... | 04/06/1976 |
