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.
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| Number | Title | Issue Date |
| 8109295 | Manifold assembly A manifold assembly used to control the flow of oxygen in an oxygen concentrator system The manifold assembly provides a series of internal pathways which receive a primary and secondary relief valves via external orifices. The manifold reduces the number of compone... | 02/07/2012 |
| 7921880 | Three-way poppet valve with intermediate pilot port An integrated three-way poppet valve is disclosed with an intermediate pilot port and an integral load holding check valve. The valve incorporates a reverse flow check poppet for load hold capability, which enables a lower cost solution compared to a combination of ... | 04/12/2011 |
| 7303194 | Seal retainer with pressure energized metal seal members for undersea hydraulic coupling An improved seal retainer for an undersea hydraulic coupling member, which utilizes pressure energized metal seals to maintain fluid integrity. One or more metal seals designed to have a press or interference fit are utilized in such a way that pressurized fluid try... | 12/04/2007 |
| 7156123 | Pressure reduction system for quick-connects When sample collection cylinders get full, they need to be switched out with empty sample collection cylinders. The connection between the sample cylinder and a piping system is often a quick-connect which typically has a high pressure rating when closed and a lower... | 01/02/2007 |
| 7117895 | Switching valve The object of the present invention is to provide a switching valve capable of increasing the opening stroke of a valve operated by a differential pressure while saving space, thereby reducing pressure loss. A first valve is disposed between an inlet port and a firs... | 10/10/2006 |
| 7108013 | Relief valve assembly A relief valve assembly is disclosed to include a casing, an one-way valve mounted in the fluid input end of the casing for guiding in a fluid, and a relief control valve installed in the casing between the fluid input end and fluid output end and controllable to re... | 09/19/2006 |
| 7077162 | Valving means for reducing hose line pressure during disconnect The relief valve assembly (10) includes a tube (24) having a circular threaded portion (30) adjacent a first end (28) that rotatbly receives an interconnection means. The tube other end has male threads (34) for connection to a wat... | 07/18/2006 |
| 7047995 | Gas valve switch structure of gas stove A gas valve switch structure of a gas stove includes a top base, an aluminum plate, a sealing washer, two rubber washers, two fixing pieces, a female base, and a protective plate. The protective plate is used for sealing the rubber washer and the fixing piece in the... | 05/23/2006 |
| 7040339 | Suction inlet valve for fire truck pumpers A suction inlet valve for fire truck pumpers has a male body portion and a female body portion, the portions defining a chamber therein. A cone-shaped valve element is connected to a valve stem which has a cam body thereon with a cam slot therein. The cam slot recei... | 05/09/2006 |
| 7036527 | Composite valve Disclosed is a composite valve comprising a valve body that is provided integrally with a solenoid valve portion and a differential pressure valve portion. The valve body is formed with an upper valve chest, a lower valve chest, a refrigerant introduction chamber th... | 05/02/2006 |
| 7028713 | Switching valve The object of the present invention is to provide a switching valve capable of increasing the opening stroke of a valve operated by a differential pressure while saving space, thereby reducing pressure loss. A first valve is disposed between an inlet port and a firs... | 04/18/2006 |
| 6983623 | Valve block assembly for I.S. glassware machine and modular pilot valve operated poppet valve assembly A valve block assembly includes a cartridge block and a plurality of modular pilot valve operated poppet valve assemblies. The cartridge block has a plurality of bores therein dimensioned and configured for receiving respective modular pilot valve operated poppet va... | 01/10/2006 |
| 6957667 | Multifunction tube joint A tube joint that can be used as a volume control valve, air sprayer or/and a T-tube. The multifunction tube joint mainly contains: an elongated body, a revolving valve, a stem, a branch, a piston valve rod, a button and a spring. The elongated body contains: a main... | 10/25/2005 |
| 6863087 | Filling connection for a gas bottle valve A filling connection has an actuating element and a discharge connection on the valve body of the gas cylinder valve. In addition to the discharge connection a filling union is provided on the valve body. The filling union extends in its longitudinal direction, and ... | 03/08/2005 |
| 6840261 | Gas valve switch structure of gas stove A gas valve switch structure of a gas stove includes a top base, an aluminum plate, a sealing washer, two rubber washers two fixing pieces, a female base, and a protective plate. The protective plate is used for sealing the rubber washer and the fixing piece in the ... | 01/11/2005 |
| 6716004 | Blood processing systems with fluid flow cassette with a pressure actuated pump chamber and in-line air trap A blood processing system comprises a processing chamber to process blood and a fluid flow cassette that communicates with the processing chamber. The cassette comprises a body, a pump chamber formed in the body, and a flexible diaphragm on the pump chamber responsi... | 04/06/2004 |
| 6698453 | Pressurization control device for electronic equipment enclosures A pressurization control device (10) for controlling positive pressurization of an electronic equipment enclosure, such as, for example, a telecommunications equipment enclosure (12 or 14), wherein the device (10) combines and integrates a number of valve... | 03/02/2004 |
| 6629545 | Cut-off valve for power steering systems, especially for automobiles A cut-off valve for power steering systems, especially for automobiles, includes a source of a pressure and a container, and is used for limiting a pressure in at least one pressure chamber. The cut-off valve also includes a closing body, which may be adj... | 10/07/2003 |
| 6554027 | Electromagnetically controlled seat valve An electromagnetically controlled pressure regulating valve includes a hollow housing bounding a user channel having one end to be connected to a hydraulic medium user and another end, and respective supply and a discharge channels communicating with the ... | 04/29/2003 |
| 6460620 | Mudsaver valve A mudsaver valve for use in well drilling operations includes an elongated tubular main body supporting a tubular mandrel-like mudsaver closure member therein for movement between valve open and closed positions. A coil spring is disposed in the main body... | 10/08/2002 |
| 6386235 | Ambulatory cylinder recharging and dispensing valve An in-home stationary oxygen delivery system provides oxygen to patients by way of a standard oxygen concentration process and delivers the oxygen to a patient through industry standard ports such as the CGA-870 port. A unique fill nozzle is used to fill ... | 05/14/2002 |
| 6382593 | Fluid coupling A fluid coupling for dispensing fluids, suitable for connecting a fitment disposed within a fluid source to a fluid receiving member. The fluid coupling includes a housing that defines a central passage between front and back openings and a first flow pas... | 05/07/2002 |
| 6367506 | Switch valve for hot gas circuit of refrigerant circuit A switch valve is provided in a refrigerant circuit. The switch valve includes a first valve mechanism, a second valve mechanism, and a single valve housing incorporating the first and second valve mechanisms. The first valve mechanism is an electromagnet... | 04/09/2002 |
| 6343615 | Butterfly valve A butterfly valve and associated controls for controlling the flow of water from a large diameter fire hose to the inlet of a fire pump is disclosed. The valve is installed between the suction tube and the suction tube extension of a midship mounted fire ... | 02/05/2002 |
| 6328069 | Oil purging device A device for purging contaminated oil from a lubrication conduit is provided. The device may be used wherever a contaminated fluid or gas is purged from a conduit circuit. The preferred embodiment includes a housing which may be finned to allow the radiat... | 12/11/2001 |
| 6182700 | Diverter valve A valve assembly has a valve housing formed with a bore open at a surface and extending along an axis, an inlet passage opening into the bore, inner and outer outlet passages also opening into the bore, and an inner valve seat between the inlet passage an... | 02/06/2001 |
| 6123509 | Pressure valve device for a cleaning apparatus A pressure valve used in a cleaning apparatus. The pressure valve is provided between a pump motor and a cleaning injector. The pressure valve includes a valve body, a floating valve rod, a ball valve, a compression spring, and an adjusting screw. The val... | 09/26/2000 |
| 6041808 | Compressed air control device for a source of compressed air on motor vehicles A compressed air control device for a source of compressed air on motor vehicles, forming a unit of an electro-pneumatic unloader, an integrated electro-pneumatic multi-circuit control valve and an air-drier, comprising an inlet and an outlet provided in ... | 03/28/2000 |
| 5967179 | Low profile discharge check valve A low profile valve for discharging pressurized air to a system for utilizing such pressurized air. The valve includes a housing for mounting in or to an associated structure, and has at least one opening through which pressurized air is directed to and f... | 10/19/1999 |
| 5960818 | Filling fitting for filling a closed hot-water heating system The invention relates to a filling fitting for filling a closed hot-water heating system, the filling fitting comprising a tube separator including an upstream backflow preventer, a downstream backflow preventer and a drain valve controlled by the inlet p... | 10/05/1999 |
| 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 |
| 5810115 | Pressure bypass accessory for a series progressive divider valve In a series progressive divider valve having a number of identical valve units disposed adjacent to each other, each formed by a base member and a spool member having a movable spool therein, a manifold in the form of a plate which can be inserted between... | 09/22/1998 |
| 5785072 | Compressed stopper channel bypass pipe burst pressure relief apparatus for plumbing fixtures According to the present invention, water regulation assemblies disposed in the water supply path of conventional fixtures are modified to include a pressure relief assembly which permits release of water under elevated pressures. A shut-off seal of a fix... | 07/28/1998 |
| 5771921 | Pressure regulator A pressure regulator for supplying water to an associated watering system for poultry or the like includes a top works structure and a bottom works structure which are formed of few parts, which are easy to manufacture and assemble together. The top works... | 06/30/1998 |
| 5765595 | Air/vacuum valve throttling apparatus An air/vacuum valve throttling device capable of use with an air/vacuum valve in a piping installation is provided. The throttling device has a body with an interior and a number of ports. A vent/admit port connectable to the air/vacuum valve is provided.... | 06/16/1998 |
| 5704387 | Propane reserve system A propane reserve system for providing propane fuel to propane driven equipment. The propane reserve system includes a standard tank and reserve tank interconnected by a supply network such that the standard tank simultaneously supplies fuel to the propan... | 01/06/1998 |
| 5640997 | Relief valve for gas flow rate regulator An improved rotor retainer housing for a rotatable rotor body and a relief sealing mechanism for a gas flow rate regulator. The retainer housing having structural features equivalent to the essential corresponding features of a conventional metal part is ... | 06/24/1997 |
| 5571259 | Structure of washing machine A washing machine including a boiler, a motor-driven pump controlled by a control device to pump warm water from the boiler to a spray gun through a water supply pipe, a check valve installed in the water supply pipe, a water return pipe for sending water... | 11/05/1996 |
| 5558129 | Stream selector for process analyzer A stream selector for a process analyzer. The stream selector includes a valve module having two block valves and a bleed valve. In a first mode, the block valves are closed and the bleed valve is open. In a second mode, the block valves are open and the ... | 09/24/1996 |
| 5551473 | Thermal expansion relief valve A fluid flow control valve, e.g. a pressure vacuum breaker, includes a thermal expansion relief valve for protecting the control valve against damage due to freezing. The control valve has a valve body of rigid material and defines a main conduit. The the... | 09/03/1996 |
