Bizarre Patents
An armor with rollers is provided that enables a user to move in all positions by rolling on a hard and smooth surface while constantly varying his bearing points on the ground.
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 |
| 7654084 | Metering fuel pump A device and method for controlling the flow of a gaseous fuel from a fuel supply to a pressurized combustion chamber. A fuel pump is included in the gas train from supply to chamber. The fuel pump increases the pressure of the gas to allow efficient injection into ... | 02/02/2010 |
| 7654074 | Thermal improvements for an external combustion engine An external combustion engine having an exhaust flow diverter for directing the flow of an exhaust gas. The external combustion engine has a heater head having a plurality of heater tubes through which a working fluid is heated by conduction. The exhaust flow divert... | 02/02/2010 |
| 7325399 | Coolant penetrating cold-end pressure vessel An improvement is provided to a pressurized close-cycle machine that has a cold-end pressure vessel and is of the type having a piston undergoing reciprocating linear motion within a cylinder containing a working fluid heated by conduction through a heater head by h... | 02/05/2008 |
| 7310945 | Work-space pressure regulator A device and method for equalizing the pressure between work-space and crankcase in a pressurized engine, such as a Stirling engine. The device consists of a two-way valve connected between the work-space and the crankcase. The valve is connected to the work-space w... | 12/25/2007 |
| 7308787 | Thermal improvements for an external combustion engine An external combustion engine having an exhaust flow diverter for directing the flow of an exhaust gas. The external combustion engine has a heater head having a plurality of heater tubes through which a working fluid is heated by conduction. The exhaust flow divert... | 12/18/2007 |
| 7111460 | Metering fuel pump A device and method for controlling the flow of a gaseous fuel from a fuel supply to a pressurized combustion chamber. A fuel pump is included in the gas train from supply to chamber. The fuel pump increases the pressure of the gas to allow efficient injection into ... | 09/26/2006 |
| 7007470 | Compression release valve An electromechanical compression release valve for compressors, engines with rotary or reciprocating mechanisms and external combustion engines, such as, a Stirling cycle engine, reduces the engine starting power by reducing the compression pressure in the cylinder ... | 03/07/2006 |
| 6971235 | Evaporative burner An evaporative burner that includes an igniter assembly, a swirler, an evaporation chamber, and a reverse throat. The reverse throat has raised ends that protrude into the evaporation chamber. The reverse throat in combination with the evaporation chamber and the sw... | 12/06/2005 |
| 6966182 | Stirling engine thermal system improvements A thermal cycle engine having a heat exchanger for transferring thermal energy across the heater head from a heated external fluid to the working fluid. The heat exchanger has a set of heat transfer pins each having an axis directed away from the cylindrical wall of... | 11/22/2005 |
| 6862883 | Regenerator for a Stirling engine A regenerator for a thermal cycle engine and methods for its manufacture. The regenerator has a random network of fibers formed to fill a specified volume and a material for cross-linking the fibers at points of close contact between fibers of the network. A method ... | 03/08/2005 |
| 6857260 | Thermal improvements for an external combustion engine An external combustion engine having an exhaust flow diverter for directing the flow of an exhaust gas. The external combustion engine has a heater head having a plurality of heater tubes through which a working fluid is heated by conduction. The exhaust flow divert... | 02/22/2005 |
| 6708481 | Fuel injector for a liquid fuel burner A fuel injector for a liquid fuel burner that provides for large turn-down ratios and low firing rates. The fuel injector has a fast acting valve to provide a pulsed flow of fuel from a fuel supply and a nozzle coupled to the valve for receiving and atomizing the pu... | 03/23/2004 |
| 6705081 | System and method for sensor control of the fuel-air ratio in a burner A method for controlling the fuel-air ratio of a burner having a blower responsive to a blower drive signal for injecting air into the burner. The method is based at least on the concentration of a gas in an exhaust gas product of a combustion chamber of the burner ... | 03/16/2004 |
| 6591609 | Regenerator for a Stirling Engine A regenerator for a thermal cycle engine and methods for its manufacture. The regenerator has a random network of fibers formed to fill a specified volume and a material for cross-linking the fibers at points of close contact between fibers of the network... | 07/15/2003 |
| 6591608 | Folded guide link drive improvements A system for supporting lateral loads on a piston undergoing reciprocating motion along a longitudinal axis in a cylinder includes a guide link for coupling the piston to a crankshaft undergoing rotary motion about a rotation axis of the crankshaft where ... | 07/15/2003 |
| 6543215 | Thermal improvements for an external combustion engine An external combustion engine having an exhaust flow diverter for directing the flow of an exhaust gas. The external combustion engine has a heater head having a plurality of heater tubes through which a working fluid is heated by conduction. The exhaust ... | 04/08/2003 |
| 6536207 | Auxiliary power unit An auxiliary power system for providing electrical power and heat to an indoor area includes an external combustion engine, such as a Stirling cycle engine, for generating mechanical energy and thermal energy. The external combustion engine burns a fuel w... | 03/25/2003 |
| 6381958 | Stirling engine thermal system improvements A thermal cycle engine having a heat exchanger for transferring thermal energy across the heater head from a heated external fluid to the working fluid. The heat exchanger has a set of heat transfer pins each having an axis directed away from the cylindri... | 05/07/2002 |
| 6253550 | Folded guide link stirling engine A folded linkage for coupling a crankshaft and a piston undergoing reciprocating linear motion along a longitudinal axis. The folded linkage has a guide link with a first end coupled to the piston. A connecting rod couples the distal end of the guide link... | 07/03/2001 |
| 6247310 | System and method for control of fuel and air delivery in a burner of a thermal-cycle engine A method of combusting fuel and air in a burner of an external combustion engine having a heater head. The fuel and air are combined to form a fuel-air mixture which is characterized by a fuel-air ratio. An exhaust gas product is produced when the fuel-ai... | 06/19/2001 |
| 6062023 | Cantilevered crankshaft stirling cycle machine A Stirling machine having two pistons coupled to a harmonic crank drive linkage for providing a specified phase relationship between sinusoidal displacements of each piston with respect to a fixed fiducial point. The harmonic crank drive linkage has a pri... | 05/16/2000 |
