| Patents for F04B 41 - Pumping installations or systems specially adapted for elastic fluids (2,502) |
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| 03/08/1988 | US4729228 Suction line flow stream separator for parallel compressor arrangements |
| 02/03/1988 | CN87101341A 油压往复式真空泵与压缩机 Hydraulic reciprocating pumps and compressors |
| 02/02/1988 | US4722673 Tank mounting for compressor and motor |
| 01/12/1988 | US4718836 Reciprocating completely sealed fluid-tight vacuum pump |
| 12/02/1987 | EP0247170A1 Improvements in vibratory diaphragm pumps. |
| 11/19/1987 | DE3716393A1 Kaelteanlage Kaelteanlage |
| 10/20/1987 | US4700663 Air compressor |
| 10/13/1987 | US4699570 Vacuum pump system |
| 10/08/1987 | DE3611205A1 Compressor for generating compressed air |
| 09/29/1987 | US4696626 Railroad car air compressor unit |
| 08/11/1987 | US4685941 For pneumatic equipment |
| 08/06/1987 | DE3702951A1 Motor-compressor set and method of converting a multi-cylinder internal combustion engine into a motor-compressor set |
| 06/18/1987 | WO1987003650A1 Improvements in vibratory diaphragm pumps |
| 06/09/1987 | US4671226 Supercharged multi-cylinder four-cycle diesel engine |
| 05/05/1987 | US4662826 Vacuum pump system including serially connected rotary and reciprocating vacuum pumps |
| 04/22/1987 | EP0218592A1 Portable air pump |
| 04/16/1987 | DE3536618A1 Lifting-piston compressor, in particular booster compressor for compressed gas installations |
| 03/24/1987 | CA1219655A1 Back pressure compensator for apparatus for controlling liquid level in a reservoir |
| 11/11/1986 | US4621984 Portable air pump |
| 10/23/1986 | WO1986006140A1 Portable air pump |
| 05/27/1986 | US4591318 Dual compressors |
| 03/05/1986 | EP0173601A1 Perfectly dry and closed vacuum pump with rectilinear movement for alternating compression |
| 02/25/1986 | US4572148 Diesel internal combustion engine |
| 01/08/1986 | EP0166804A1 Two stage rotary compressor |
| 12/17/1985 | US4558992 Pump device |
| 11/19/1985 | US4553903 Two-stage rotary compressor |
| 11/05/1985 | US4550568 Diesel internal combustion engine |
| 09/03/1985 | US4538584 Diesel internal combustion engine |
| 08/20/1985 | US4536132 Gas compressor |
| 06/25/1985 | US4525125 Pressure responsive pump control system having an alarm lamp |
| 05/07/1985 | US4515516 Method and apparatus for compressing gases |
| 04/02/1985 | US4508494 Two stage rotary vane pump |
| 04/02/1985 | US4508490 Two stage manual air pump |
| 03/20/1985 | EP0134373A1 Diesel engine provided with a device for the controlled operation of one piston as an air compressor |
| 03/05/1985 | US4502842 Multiple compressor controller and method |
| 02/12/1985 | US4498848 Reciprocating piston air compressor |
| 12/11/1984 | US4487224 Air switch and filter combination |
| 12/05/1984 | EP0127559A1 Variable capacity compressor and method of operating |
| 11/27/1984 | CA1178563A1 Oil equalization system for parallel connected compressors |
| 11/06/1984 | US4480654 Multipressure compressor |
| 10/02/1984 | US4474539 Dual pressure gas compressor |
| 09/25/1984 | US4472946 Cryogenic storage tank with built-in pump |
| 09/19/1984 | EP0118427A1 Multiple-stage pump |
| 09/04/1984 | CA1173805A1 Compressor |
| 08/02/1984 | WO1984002969A1 Cryogenic storage tank with built-in pump |
| 07/17/1984 | US4460319 Two-stage rotary compressor |
| 05/16/1984 | EP0108642A1 Pump device |
| 03/15/1984 | WO1984001001A1 Multiple-stage pump |
| 02/07/1984 | US4429532 Apparatus and method for temporarily converting a turbocharged engine to a compressor |
| 12/06/1983 | US4418548 Variable capacity multiple compressor refrigeration system |
| 11/29/1983 | CA1157831A1 Compressed air system |
| 10/25/1983 | US4411141 Parallel operation compressor type refrigerating apparatus |
| 09/13/1983 | US4403920 Device for regulating the output quantity of a compressed medium |
| 08/02/1983 | US4396360 Dual compressors |
| 07/05/1983 | US4391568 Gas compressor |
| 05/17/1983 | US4383802 Oil equalization system for parallel connected compressors |
| 02/08/1983 | US4372257 Drive aggregate for a heat pump |
| 11/09/1982 | US4358254 Variable capacity compressor |
| 09/14/1982 | US4349320 Piston compressor derived from a reciprocating thermal engine |
| 07/27/1982 | US4341506 Apparatus for the generation of compressed air |
| 03/02/1982 | US4317468 Pressure relief valve |
| 01/20/1982 | EP0007362B1 Piston compressor derived from an alternating thermal engine |
| 07/14/1981 | US4277955 Twin compressor mechanism in one enclosure |
| 03/11/1981 | EP0024581A1 Device for charging pressure accumulators in hydraulic systems with a highly compressed gas |
| 03/10/1981 | US4255090 Manufacture of powered air compressors |
| 02/24/1981 | US4252506 Variable capacity compressor |
| 01/27/1981 | CA1094520A1 Variable capacity compressor |
| 01/06/1981 | CA1093041A1 Gas compressor train for wet air oxidation |
| 12/02/1980 | US4236876 Multiple compressor system |
| 09/30/1980 | US4225288 Pump set comprising a liquid ring vacuum pump preceeded by a compressor |
| 07/22/1980 | CA1081979A1 Integrated multi-unit refrigeration motor-compressor assembly |
| 07/08/1980 | CA1081189A1 Breathing gas pump apparatus for divers |
| 06/03/1980 | US4205537 Multiple hermetic-motor compressor in common shell |
| 05/27/1980 | US4204811 Fluid pumping system |
| 02/06/1980 | EP0007362A1 Piston compressor derived from an alternating thermal engine. |
| 01/22/1980 | CA1070129A1 Variable capacity multiple compressor refrigeration system |
| 05/01/1979 | CA1053505A1 Construction for a water hammer type pump |
| 04/19/1979 | WO1979000199A1 Piston compressor derived from an alternating thermal engine |
| 04/17/1979 | US4149827 Method and apparatus for controlling operation of a compressor |
| 03/06/1979 | US4142828 Openable rotor chamber construction for a vertical blower |
| 09/12/1978 | CA1038352A1 Portable air compressor |
| 09/05/1978 | US4111609 Multistage gas compressor |
| 08/08/1978 | US4105374 Integrated multi-unit refrigeration motor-compressor assembly |
| 07/25/1978 | US4102149 Variable capacity multiple compressor refrigeration system |
| 05/23/1978 | US4090815 High vacuum pump |
| 04/11/1978 | US4083657 Flood guard warning system, apparatus and process |
| 03/21/1978 | US4080105 Tire inflator |
| 03/21/1978 | US4080103 Portable air compressor system for respirator |
| 03/07/1978 | US4077747 Portable air compressor |
| 03/07/1978 | US4077743 Compression machinery method and apparatus |
| 11/29/1977 | US4060340 Air compressor with inlet diversion valve |
| 11/29/1977 | US4060339 Method and apparatus for controlling a gas-producing facility |
| 11/22/1977 | US4059367 Gaseous fluid compressing apparatus |
| 11/02/1976 | US3988897 Apparatus for storing and re-utilizing electrical energy produced in an electric power-supply network |
| 10/19/1976 | US3986355 Well head gas counter balanced and operated actuator for oil well pumps |
| 06/15/1976 | US3963379 Convertible engine-air compressor apparatus for driving a vehicle |
| 05/25/1976 | US3958900 Convertible engine-air compressor apparatus mounted on a vehicle for driving said vehicle |
| 05/11/1976 | US3956072 Vapor distillation apparatus with two disparate compressors |
| 04/20/1976 | US3950946 Vacuum producing system |
| 03/02/1976 | US3941509 Pumping system |