| Patents for F04B 35 - Piston pumpsspecially adapted for elastic fluids and characterised by the driving means to their working members, or by combination with, or adaptation to, specific driving engines or motors, not otherwise provided for (9,373) |
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| 09/20/1988 | US4772828 Control device supplying optimum power to oscillating drive motor for resonant-piston type compressor unit |
| 09/06/1988 | US4768930 Hold-down mechanism for a pivotally-mounted motor on an air compressor |
| 08/16/1988 | CA1240523A1 Compressor inlet control device |
| 08/10/1988 | EP0277382A1 Motor-compressor unit |
| 08/02/1988 | US4761118 Positive displacement hydraulic-drive reciprocating compressor |
| 07/19/1988 | US4757888 Electro magnetic clutch with a rotation detector for a refrigerant compressor |
| 06/22/1988 | EP0272229A1 Motor piston compressor unit |
| 06/21/1988 | US4751824 Energy conserving refrigeration valve control apparatus |
| 06/14/1988 | US4750871 Stabilizing means for free piston-type linear resonant reciprocating machines |
| 06/14/1988 | US4750870 Pressure actuated movable head for a resonant reciprocating compressor balance chamber |
| 06/08/1988 | EP0269882A2 Stationary piston compressor for compressing natural gas |
| 06/07/1988 | US4749891 Non-linear electromagnetic vibration device |
| 05/19/1988 | DE3639481A1 Compressed-air compressor |
| 05/18/1988 | EP0267642A1 Motor-compressor |
| 05/18/1988 | CN86101205B Compression engine of motor drive of enclosed |
| 05/11/1988 | EP0266835A1 Control device for controlling the power supply to an oscillating motor for driving a compressor unit of the resonant-piston type and compressor unit of the resonant-piston type provided with such a control device |
| 05/11/1988 | CN87213712U Mini-pistol electrical inflating |
| 05/11/1988 | CN87107490A Control device for controlling power supply to oscillating motor for driving compressor unit of resonant-piston type and compressor unit of resonant-piston type provided with such control device |
| 05/11/1988 | CN86209401U Electric-magnetic air pump with contrinuous air output |
| 05/10/1988 | US4743178 Non-linear electromagnetic vibration fluid compression device |
| 05/10/1988 | US4743176 Gas flow system for a compressor |
| 04/12/1988 | US4737695 Air pump for aquarium |
| 02/11/1988 | WO1988001036A1 Vibration isolation for a linear reciprocating machine |
| 02/10/1988 | CN86203806U Air-compressor driven by seawave |
| 02/03/1988 | EP0255147A2 Perfected portable motor-driven compressor set |
| 02/03/1988 | CN87101341A 油压往复式真空泵与压缩机 Hydraulic reciprocating pumps and compressors |
| 01/27/1988 | EP0254295A1 Coupling mechanism for compressor |
| 01/26/1988 | US4721440 Linear gas compressor |
| 01/12/1988 | US4718830 Bearing construction for refrigeration compresssor |
| 01/06/1988 | CN87200797U 往复式真空泵 Reciprocating pumps |
| 12/29/1987 | US4715787 Coaxial, two-cylindered air compressor |
| 12/22/1987 | US4714411 Fluid pressure intensifier device |
| 12/16/1987 | CN87103613A Hermetically sealed rotary compressor |
| 12/15/1987 | US4712983 Air compressor accessory driven by portable electric drill |
| 12/05/1987 | CN86210628U Air compressor with a clutch |
| 11/17/1987 | US4706470 System for controlling compressor operation |
| 11/10/1987 | US4705460 Bounce chambers for multi-cylinder linear engine compressors |
| 11/04/1987 | CN86100564A Automatical air pump |
| 10/28/1987 | CN86206322U Multipurpose hydraulic drive piston pump |
| 10/06/1987 | US4697989 Electrodynamic peristaltic fluid transfer device and method |
| 09/29/1987 | US4696626 Railroad car air compressor unit |
| 08/05/1987 | CN86205275U Reciprocating piston compressor with eccentric round slide-block |
| 07/14/1987 | US4679986 Energy conserving refrigeration apparatus and method |
| 07/01/1987 | EP0227256A2 Jack combined with an air pump and using a common drive motor |
| 06/16/1987 | CA1222941A1 Single stage liquid motor and pump |
| 06/10/1987 | CN86206779U Reciprocating compressor with crank sliding block for vehicles |
| 05/27/1987 | EP0223288A1 Arrangement comprising a hydrodynamically journalled reciprocable and rotatable piston |
| 05/27/1987 | EP0223232A2 Air compressor |
| 04/30/1987 | DE3537834A1 Electromagnetic coupling |
| 04/23/1987 | WO1987002413A1 Multiple energy generator with integrated thermal cycle |
| 04/22/1987 | EP0218592A1 Portable air pump |
| 04/22/1987 | CN86204444U Reciprocating piston compressor with crank pin |
| 03/25/1987 | CN86104569A Piston compressor with long stroke and low reciprocating frequency |
| 03/24/1987 | US4652216 Compressor inlet control device |
| 03/05/1987 | DE3625447A1 Scotch-yoke mechanism gears for hermetic refrigeration compressors |
| 02/11/1987 | CN86102848A 磁能压缩机 Magnetic compressor |
| 02/10/1987 | CA1217748A Motor compressor and method of assembling same |
| 02/04/1987 | CN85203737U Micro semi-auto tyre inflating device fixed on the bicycle |
| 12/30/1986 | US4632645 Vibrating compressor |
| 12/24/1986 | CN85105176A Automatic aerator |
| 12/10/1986 | EP0204190A1 Drive arrangement for compressor of a transport refrigeration unit |
| 12/10/1986 | CN85104592A Energy saving technique by utilizing the vibrational energy of vehicles through |
| 11/12/1986 | CA1213962A Control system for engine-driven compressor unit |
| 11/11/1986 | US4621984 Portable air pump |
| 11/05/1986 | EP0200357A2 Non-linear electromagnetic vibration device |
| 10/23/1986 | WO1986006140A1 Portable air pump |
| 10/08/1986 | CN85204480U Micro automatic pump with pressure regulation |
| 10/07/1986 | US4615259 Reciprocating gas compressor |
| 09/23/1986 | US4613287 Wave operated energy device |
| 09/23/1986 | US4613285 Piston stroke control device for free piston type oscillating compressors |
| 09/17/1986 | CN86101205A Compression engine of motor drive of enclosed |
| 09/03/1986 | EP0193498A2 Positive displacement hydraulic-drive reciprocating compressor |
| 09/03/1986 | CN86100929A Positive displacement hydraulic-drive reciprocating compressor |
| 09/03/1986 | CN85107764A Electo-magnetic repulsive-atractive compression engine |
| 09/02/1986 | CA1210616A1 Compressor drive arrangement and a method of adjusting driving characteristics of such an arrangement |
| 08/27/1986 | CN85102855A Nonlinear electromagnetic oscillation device |
| 08/26/1986 | US4608000 Air pump |
| 08/26/1986 | CA1210377A1 Dual capacity reciprocating compressor |
| 07/15/1986 | CA1207829A1 Oscillating armature motor for driving electrical devices |
| 07/08/1986 | US4599083 Method and device for fluid transfer |
| 07/08/1986 | CA1207296A1 Miniature solid-state gas compressor |
| 07/02/1986 | CN85104884A Self pumping valve inside |
| 05/06/1986 | CA1204090A1 Pump for a portable ventilator |
| 04/23/1986 | EP0178348A1 Gas compressor directly driven by a heat supply |
| 03/25/1986 | US4577465 Oil free vacuum system |
| 03/04/1986 | CA1201310A1 Gear box for a compressor plant |
| 02/19/1986 | CN85200336U Reciprocal piston compressor with a crank and a slide block |
| 01/08/1986 | EP0166767A1 Multistage resonant compressor |
| 01/07/1986 | US4563603 Holder arrangement for the reciprocating rod of electromagnetic reciprocator device |
| 11/27/1985 | EP0162833A1 Piston compressor |
| 11/27/1985 | EP0162222A2 Compressor inlet control device |
| 11/21/1985 | EP0161429A1 Piston stroke control device for free piston type oscillating compressors |
| 11/19/1985 | US4553398 Linear motor compressor with pressure stabilization ports for use in refrigeration systems |
| 11/19/1985 | CA1196823A1 Combined fluid pressure actuated fuel and oil pump |
| 11/05/1985 | US4551074 Air pump apparatus |
| 10/15/1985 | US4547131 Refrigeration compressor and method of assembling same |
| 10/08/1985 | US4545738 Linear motor compressor with clearance seals and gas bearings |
| 10/02/1985 | EP0156462A2 A reciprocating piston for a compressor |
| 09/24/1985 | CA1194070A1 Alternator with vacuum pump |
| 09/03/1985 | US4538964 Multistage resonant compressor |