William F. Semple, a dentist, was awarded the first US Patent on chewing gum in 1869. His recipe contained powdered chalk.
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| Number | Title | Issue Date |
| 7331292 | Venting system for explosive warheads An ordnance venting system has one or more adapters that separate the warhead section from other sections of a rocket, or submunition compartments within the warhead itself. The adapters structurally fail at given temperatures and pressures to reduce the danger of e... | 02/19/2008 |
| 7051511 | Method and arrangement for preventing encased explosives being caused to explode by an external fire This disclosure relates to a method and an arrangement for preventing explosives such as rocket engines from exploding while subjected to an external fire in an ammunition bunker. The basic principle underlying the invention is that the casing surrounding the explos... | 05/30/2006 |
| 6792756 | Gas supply control device for a gas storage power plant The present invention relates to a gas storage power plant (1) with a gas store (8), a turbogroup (2) and a gas supply line (9) which leads from the gas store (8) to the turbogroup (2). A gas supply control device (12... | 09/21/2004 |
| 6202782 | Vehicle driving method and hybrid vehicle propulsion system A vehicle driving method and hybrid propulsion system are disclosed. In the vehicle driving method and hybrid propulsion system, a heat engine is intermittently operated to provide a first power output and hot exhaust. A heat recovery unit containing ther... | 03/20/2001 |
| 6038979 | Insensitive warhead casings The present invention is a process and material for forming warhead casin The material itself consists of tightly wound carbon fiber bonded by a low temperature (room temperature) resin. This process of formation gives several advantages, including the e... | 03/21/2000 |
| 5735114 | Thermostatic bimetallic retaining ring for use in rocket motor assembly A device for safely attaching sections of a rocket motor is disclosed. The device is constructed such that if the temperature of the rocket motor is elevated to the point where ignition of the propellant within the rocket motor becomes a significant dange... | 04/07/1998 |
| 5311820 | Method and apparatus for providing an insensitive munition A heat sensitive case/nozzle interface is provided for an insensitive propellant-loaded munition such that the interface loses its structural integrity when high external heat is applied. The joint between a rocket case housing a rocket motor and nozzle f... | 05/17/1994 |
| 5036658 | Pressure relief device for solid propellant motors subjected to high external temperatures A rocket motor that has a solid propellant with closure means that is secd to the rocket motor housing by heat responsive means that melts before the solid propellant ignites to prevent the rocket motor from becoming propulsive when subjected to excessiv... | 08/06/1991 |
| 4909028 | Pressure relief device The invention relates to a pressure-relief device in a PFBC power plant with a combustor (12) enclosed in a pressure vessel (10). The device is intended to limit the pressure difference between the combustor (12) and the surrounding space (22) in the pres... | 03/20/1990 |
| 4838209 | Energy plant with heat exchanger in a blow-off device for hot gases A PFBC power plant, with a vessel containing hot gas considerably exceeding the atmospheric pressure and a blow-off device for rapidly emptying a container containing the hot gas. The blow-off device comprises a heat exchanger which is located between the... | 06/13/1989 |
| 4825644 | Ventilation system for a nacelle A ventilation system for a nacelle 14 is disclosed. The ventilation system includes pressure relief doors 50 and 52, and a holdback device 68 which blocks each open door from moving from the open position to the closed position.... | 05/02/1989 |
| 4498286 | Gas turbine plant with a fluidized bed combustion chamber A gas turbine plant comprises a compressor, a turbine and, therebetween, a pressurized container containing a combustion chamber with a fluidized bed. The plant further comprises a valve means for shutting off the compressor and the turbine, respectively,... | 02/12/1985 |
| 4498285 | Gas turbine plant with a fluidized bed combustion chamber A gas turbine plant includes a compressor and a turbine and therebetween a pressurized combustion chamber with a fluidized bed arranged within a pressurized container. The plant is also provided with valves for shutting off the compressor and the turbine ... | 02/12/1985 |