| Patents for F03G 7 - Mechanical-power-producing mechanisms, not otherwise provided for or using energy sources not otherwise provided for (9,673) |
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| 03/05/1991 | US4996846 Method of and apparatus for retrofitting geothermal power plants |
| 03/05/1991 | US4996842 Heat engine with corrugated shape memory drive belt |
| 02/28/1991 | DE3919319A1 Electric current generator from wind energy source - has transport wheel for downward transport either of water or ferromagnetic body at semicircumference of wheels |
| 02/27/1991 | EP0413804A1 A heat exchanger |
| 02/13/1991 | CN1049216A 供能机 For energy machine |
| 02/07/1991 | DE3925471A1 Air pressure converter producing electrical power - has rotor(s) driving generators using blowers to produce air pressure on blades |
| 01/31/1991 | DE3923878A1 Air-breathing perpetual motion machine for vehicular propulsion - eliminates liq. air consumption through continuous recycling of atmos. air through compressor, cooler and gravitonic evaporator |
| 01/30/1991 | EP0409887A1 Actuator with memory metal and a shock absorber provided with this actuator. |
| 01/30/1991 | CN1011385B Method and apparatus for osmotic distillation |
| 01/29/1991 | US4987742 Process for the generation of mechanical energy in the ammonia oxidation step of a nitric acid production process |
| 01/16/1991 | EP0407408A1 Process and installation for recuperation of energy from oil wells. |
| 01/15/1991 | US4984542 Thermal throttle actuator |
| 01/10/1991 | WO1991000608A1 Shape-memory alloy micro-actuator |
| 01/10/1991 | WO1991000464A1 Semiconductor microactuator |
| 01/08/1991 | US4982568 Thermodynamic cycle |
| 12/27/1990 | WO1990015928A1 A shape memory actuator |
| 12/25/1990 | US4980572 Generation of electricity using gravitational energy |
| 12/25/1990 | US4979672 Shape memory actuator |
| 12/25/1990 | US4979365 Electrothermally operated actuator |
| 12/15/1990 | WO1990016073A1 Apparatus and method for providing an antigravitational force |
| 12/15/1990 | CA2053881A1 Apparatus and method for providing an antigravational force |
| 12/13/1990 | WO1990015201A1 Vacuum collecting vessel for flushing water |
| 12/13/1990 | WO1990015199A1 Pressure-generating hollow body |
| 12/12/1990 | CN1047631A Removal of hydrogen sulfide with on site generated sulfite |
| 12/01/1990 | CA2018008A1 Removal of hydrogen sulfide with on site generated sulfite |
| 12/01/1990 | CA2016601A1 Temperature-sensitive actuating apparatus for a servo apparatus |
| 11/14/1990 | CN1046960A Hot power pump |
| 11/06/1990 | US4967559 Contaminant abatement process for geothermal power plant effluents |
| 10/30/1990 | US4966254 Apparatus for converting extrinsic useless oscillation motions into useful torque |
| 10/24/1990 | EP0393084A1 Power generation plant |
| 10/23/1990 | US4965545 Shape memory alloy rotary actuator |
| 10/17/1990 | EP0392801A2 Method for driving a prime mover using a refrigerant gas for generating electric power and for heating or cooling water |
| 10/10/1990 | CN1046023A Apparatus for converting extrinsic useless oscillation motions into useful torque |
| 10/10/1990 | CN1046022A Heat-work energy transducer and its use |
| 10/10/1990 | CA2014148A1 Driving method, electric power generating method, and cold or hot water obtaining method using refrigerant gas |
| 10/04/1990 | WO1990011447A1 Device for utilizing heat via conversion into mechanical energy, in particular a cooling device |
| 10/04/1990 | WO1990011446A1 Power station for converting elementary energy into thermal energy |
| 10/03/1990 | EP0389707A1 Apparatus for converting extrinsic useless oscillatory motions into useful torque |
| 10/02/1990 | US4960576 Injecting ferric chelate which is reduced to ferrous chelate |
| 10/02/1990 | US4960575 Using soluble polymeric catalyst |
| 09/26/1990 | CN1045632A Energy-saving air extraction compressor |
| 09/20/1990 | WO1990010790A1 Fluid flow systems |
| 09/20/1990 | WO1990010771A1 Crack repairing method |
| 09/19/1990 | EP0387375A1 Sealant injector |
| 09/18/1990 | US4957720 Evaporation and superheating using process heat of nitrogen oxide gases formed |
| 09/12/1990 | CN1045290A Siphon type hydroelectricity generation method |
| 09/11/1990 | US4955196 Internal energy engine (IEE) |
| 09/10/1990 | WO1990010839A1 A heat exchanger |
| 09/10/1990 | CA2028133A1 Heat exchanger |
| 09/04/1990 | US4953356 Geothermal reboiler apparatus and method |
| 09/04/1990 | CA1273496A1 Geothermal energy utilization system |
| 08/22/1990 | EP0382847A1 Power drive |
| 08/16/1990 | EP0382059A1 Recycled power rotative engine |
| 08/16/1990 | EP0381826A1 Process for the production of mechanical energy during the NH3 oxidation in the HNO3 process |
| 08/16/1990 | EP0381825A1 Process for the production of mechanical energy during the NH3 oxidation in the HNO3 process |
| 08/07/1990 | US4945727 Hydraulic shape memory alloy actuator |
| 08/02/1990 | DE3900636A1 Device for obtaining useful energy from potential energy |
| 07/31/1990 | CA1272044A1 Continuous force and impact generator |
| 07/26/1990 | WO1990008259A1 Installation for extracting usable energy from potential energy |
| 07/25/1990 | EP0378971A1 Autonomous machine capable of producing energy using the lever principle, and method of producing it |
| 07/25/1990 | CN1044150A Gravitational generator |
| 07/24/1990 | US4942905 Composite hose construction |
| 07/18/1990 | CN1043976A 发动机排气减压技术 Engine exhaust pressure technology |
| 07/03/1990 | US4938026 Heat engine based on shape memory alloys |
| 06/28/1990 | WO1990006860A1 Electric car with fluid circuit drive and self-contained energy supply |
| 06/14/1990 | WO1990006587A1 Micromechanic manipulator |
| 06/13/1990 | EP0372864A1 Method of and apparatus for producing power using steam |
| 06/13/1990 | DE3844669A1 Micromechanical device |
| 06/13/1990 | DE3841557A1 Mikromechanischer manipulator Micromechanical manipulator |
| 06/12/1990 | US4932210 Shape memory metal precision actuator |
| 06/06/1990 | CN1042754A Power transmission device |
| 06/05/1990 | US4930494 Apparatus for bending an insertion section of an endoscope using a shape memory alloy |
| 06/05/1990 | US4930316 Geothermal plant noncondensable gas removal and heat recovery system and method |
| 05/22/1990 | US4927856 Production of hydrocarbons from geothermal resources |
| 05/08/1990 | US4922718 Thermal energy scavenger |
| 05/03/1990 | WO1990004719A1 Current generation and storage with superconductors in the cold sink |
| 05/03/1990 | DE3924043A1 Superconductive current generator and store in frozen pit - utilise thermal and mechanical effects for cooling air to cryogenic temp. for low-pressure frictional distillation |
| 05/02/1990 | EP0366633A2 Fan cooled absorption refrigerating apparatus |
| 04/25/1990 | EP0365011A2 A polymer gel manufacturing method, a polymer gel and an actuator employing the same |
| 04/11/1990 | CN1041203A Internal-force engine |
| 04/03/1990 | US4912941 Drilling fracturing, forcing heat-conducting substance into passages, joining supply and return lines |
| 03/28/1990 | EP0360455A2 Split memory element |
| 03/28/1990 | CN1040744A Removal of hydrogen sulfide from fluid streams |
| 03/13/1990 | US4907410 Thermal energy from environmental fluids |
| 03/13/1990 | CA1266638A1 Process for the removal of h.sub.2s from geothermal steam and the conversion to sulfur |
| 03/08/1990 | WO1990001984A1 Removal of hydrogen sulfide from fluid streams |
| 03/07/1990 | EP0356821A1 Method and apparatus for cryogenic liquid expansion |
| 03/06/1990 | US4905473 Geothermal power plant steam entrainments removal system and method |
| 02/28/1990 | CN1040082A Thermal energy from environmental fluids |
| 02/27/1990 | US4904158 Expansion turbine |
| 02/13/1990 | US4899910 Repair of cracks in concrete structures |
| 02/13/1990 | US4899543 Pre-tensioned shape memory actuator |
| 02/08/1990 | WO1990001116A1 Power drive |
| 02/01/1990 | DE3825179A1 Device for converting mechanical drive energy of a motor vehicle |
| 01/30/1990 | US4897006 Device for exerting a pressure developing in stages on a part |
| 01/30/1990 | US4896728 Fire sprinklers with frangible body closing a flow passage and separate means for shattering same |
| 01/17/1990 | EP0144406B1 Method and equipment for converting thermal energy to mechanical energy |
| 12/28/1989 | WO1989012748A1 Process and apparatus for conversion of low value thermal energy in mechanical energy by thermal expansion of an expansion medium |
| 12/27/1989 | EP0347978A1 Pneumatic actuator with permanent magnet control valve latching |
| 12/19/1989 | US4887430 Bistable SME actuator with retainer |