| Patents for F15B 15 - Fluid-actuated devices for displacing a member from one position to another; Gearing associated therewith (21,171) |
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| 08/09/1990 | WO1990008904A1 Fluid-powered precision oscillator |
| 08/07/1990 | US4945779 Ball screw rotary actuator |
| 08/07/1990 | US4945778 Fluid-power device with rollers |
| 08/07/1990 | CA1272426A1 Combined linear hydraulic motor and transfer valve |
| 08/02/1990 | DE4001206A1 Displacement measuring sensor - made of specified plastic material with electric or magnetic field domains |
| 07/31/1990 | US4944755 Motorized joint |
| 07/31/1990 | US4944215 Fluid actuated cylinder assembly with a floating cylinder head |
| 07/26/1990 | DE3901900A1 Actuating drive |
| 07/24/1990 | US4942905 Composite hose construction |
| 07/24/1990 | US4942852 Electro-pneumatic actuator |
| 07/18/1990 | EP0378402A1 Linear position sensor |
| 07/18/1990 | EP0377898A1 Single-stage actuator with a piston rod locking device |
| 07/18/1990 | EP0377819A2 Connection for two construction elements |
| 07/18/1990 | EP0290320B1 Hydraulic actuator with a piston position control system |
| 07/17/1990 | US4942529 Lift truck control systems |
| 07/17/1990 | CA1271689A1 Axially slit pressure cylinder with reinforced sealing strip |
| 07/12/1990 | DE3900599A1 Linear guide system and cylinder-tube length material suitable for it |
| 07/12/1990 | DE3900298A1 Pneumatic swivel drive with a curved piece which can be modified |
| 07/11/1990 | EP0377529A1 Fluid-pressure actuator |
| 07/11/1990 | EP0377254A1 Pneumatic actuator |
| 07/11/1990 | EP0377252A1 Electro-pneumatic actuator |
| 07/11/1990 | EP0377251A1 Compact valve actuator |
| 07/11/1990 | EP0377250A1 Enhanced efficiency valve actuator |
| 07/11/1990 | EP0377244A1 Fast acting valve |
| 07/11/1990 | CA2007496A1 Linear position sensor |
| 07/10/1990 | US4939983 Fluid pressure operated positioning apparatus |
| 07/10/1990 | US4939982 Axially contractable actuator |
| 07/10/1990 | US4939981 Hydraulic servo cylinder device for controlling continuously variable speed transmission |
| 07/06/1990 | CA2007297A1 Pneumatic actuator |
| 07/06/1990 | CA2007102A1 Compact valve actuator |
| 07/06/1990 | CA2007087A1 Enhanced efficiency valve actuator |
| 07/06/1990 | CA2007082A1 Fast acting valve |
| 07/06/1990 | CA2007076A1 Electro-pneumatic actuator |
| 07/05/1990 | DE3900086A1 Adjusting device with a sensor for an implement, in particular a two-way turn-over plough |
| 07/05/1990 | DE3844275A1 Device for converting a linear motion into a rotary motion |
| 07/04/1990 | EP0376416A1 Fluid pressure actuator |
| 07/04/1990 | CN2058943U Hydraulic or pneumatic cylinder |
| 07/04/1990 | CN1008652B Differential hydraulic jack for control of electric circuit-breakers |
| 07/04/1990 | CN1008651B High voltage breaker drive |
| 06/28/1990 | WO1990007064A1 A fluid actuated cylinder assembly with a floating cylinder head |
| 06/27/1990 | CN1043365A Combined oil cylinder for support apparatus in coal mine |
| 06/26/1990 | US4936197 Dynamic seal construction |
| 06/26/1990 | US4936193 Protective device |
| 06/26/1990 | CA1270726A1 Carrier bracket for power cylinder |
| 06/20/1990 | EP0264682B1 Piston-cylinder-aggregate |
| 06/12/1990 | US4932313 Air bearing piston and cylinder assembly |
| 06/12/1990 | US4932311 Fluid apparatus |
| 06/06/1990 | EP0371124A1 Hydraulic actuator for isolators |
| 06/06/1990 | CN1008294B Hydraulic centre oil transfusing and double cascode dual function hydraulic oil cylinder |
| 06/05/1990 | US4930403 Directionally controlled hydraulic cylinder |
| 06/05/1990 | US4930402 Hydraulic lifting cylinder-piston unit |
| 05/30/1990 | EP0370865A1 Landing gear orientation device |
| 05/30/1990 | EP0370157A1 Braking device in an arrangement for linear movement |
| 05/30/1990 | CN1008201B Fluid-operated cyclinder with a cushioning flow rate control valve |
| 05/29/1990 | US4929202 Power trim cylinder protective locking device for an inboard/outboard boat motor |
| 05/29/1990 | US4928577 Piston and cylinder unit |
| 05/23/1990 | DE3937280A1 Versatile motor-driven component - design has cylinder unit where total of volumes on two sides of piston remains constant, it can run in any position, and no parts wear out |
| 05/22/1990 | US4926982 Braking device in an arrangement for linear movement |
| 05/22/1990 | US4926693 Contactless actuator piston proximity sensor |
| 05/17/1990 | WO1990005260A1 Controllable driving mechanism with actuator, and seal for this driving mechanism |
| 05/16/1990 | EP0368020A1 Single-acting hydraulic cylinder |
| 05/15/1990 | US4924757 Lightweight cylinder head attachment for fluid actuators |
| 05/15/1990 | CA1269024A1 Hydraulic operating apparatus |
| 05/15/1990 | CA1269020A1 Fluid pressure oscillator |
| 05/09/1990 | EP0292473B1 Method for reducing the piston speed, especially in the piston and cylinder assemblies of an excavating machine, and device for carrying out the method |
| 05/09/1990 | CN2056949U Pneumatic and hydraulic composite driving device for tool machine |
| 05/08/1990 | US4922805 Fluid actuated cylinder |
| 05/02/1990 | EP0293368B1 Hydraulic cylinder-piston unit provided with a mechanical safety device, particularly for pantograph type motor vehicle lifts |
| 04/26/1990 | DE3835769A1 Roof-bar arrangement for hydraulic support units, in particular for shield-type powered support assemblies, with a slide bar and allocated slide-bar cylinder |
| 04/25/1990 | EP0365391A1 Device for connecting the ends of a highly axially loaded compound tube by means of metallic flanges and process of manufacturing the same |
| 04/24/1990 | US4919039 Hydraulic turning gear |
| 04/19/1990 | WO1990004086A1 Cam-helical actuator with backlash elimination |
| 04/18/1990 | EP0363575A1 Pneumatic actuator with locking means in the end positions, especially for actuating smoke extractor flues |
| 04/18/1990 | CN2056200U Connecting rod slipper |
| 04/11/1990 | EP0362201A1 Pneumatic or hydraulic cylinder with built-in velocity control |
| 04/10/1990 | US4915015 Pneumatic actuator |
| 04/05/1990 | WO1990003523A1 End position damping system |
| 04/05/1990 | CA2000220A1 Cam-helical actuator with backlash elimination |
| 04/03/1990 | US4913600 Drilling unit |
| 03/29/1990 | DE3931165A1 Damping system for pneumatic piston - makes use of reduced pressure chambers at end positions |
| 03/29/1990 | DE3904644C1 Hydraulic pit prop |
| 03/29/1990 | DE3831459A1 Locking device for double-acting fluid cylinders, in particular hydraulic cylinders |
| 03/29/1990 | DE3051062C2 Processing of potato sticks - detecting discoloured spotted sticks and ejecting them for snipping |
| 03/28/1990 | CN2055202U Position sensing hydraulic cylinder |
| 03/27/1990 | US4912291 Compact proximity switch arrangement |
| 03/27/1990 | US4911328 Pressure medium-driven dispensing appliance for operating double cartridge cases |
| 03/27/1990 | US4910961 Hydraulic door opening or closing device |
| 03/22/1990 | DE3914811A1 Common chamber working cylinder with reciprocating piston - has spring-controlled valve piston which prevents creation of vacuum |
| 03/22/1990 | DE3831909A1 Pipe/flange connection, particularly for hydraulic or pneumatic cylinders |
| 03/20/1990 | US4910491 Electrical apparatus used with a potentiometer and/or variable resistance element |
| 03/20/1990 | US4909130 Cylinder end cap |
| 03/15/1990 | DE3927397A1 Electro-pneumatic stepping motor - with electro-pneumatic controls for separate operation of drive elements |
| 03/13/1990 | US4907495 Pneumatic cylinder with integral concentric hydraulic cylinder-type axially compact brake |
| 03/07/1990 | EP0356808A1 Actuator |
| 03/07/1990 | EP0356738A1 A tiltable bucket assembly |
| 03/06/1990 | US4906161 Tiltable bucket assembly |
| 03/06/1990 | US4905574 Single-acting rotary pneumatic actuator, including at least a precompressed spring assembly |
| 02/28/1990 | EP0355891A2 Linear actuator |
| 02/28/1990 | EP0355179A1 Linear actuator assembly |
| 02/28/1990 | CN2053694U Mechanical position feedback mechanism of pulse oil cylinder |