| 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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| 06/26/1991 | EP0433955A1 Fluid actuator with locking means |
| 06/25/1991 | US5026125 Vehicle braking system |
| 06/25/1991 | US5025708 Actuator with automatic lock |
| 06/18/1991 | US5024144 Piston drive |
| 06/18/1991 | US5024116 Modular rotary actuator |
| 06/13/1991 | DE3940886A1 Rugged design of sliding contact sensor - is potentiometer winding whose sliding contact generates positional signal and has sealed impact-resistant construction for use underground |
| 06/11/1991 | US5022499 Axially slit pressure cylinder with brake means |
| 06/11/1991 | US5022359 Actuator with energy recovery return |
| 06/11/1991 | US5022311 Compact fluid actuated working cylinder with spring loaded tensioning member |
| 06/04/1991 | US5021064 Robotic fluid-actuated muscle analogue |
| 06/04/1991 | US5020712 Pneumatic powered fastener device |
| 06/04/1991 | US5020421 Working cylinder without piston rod |
| 06/04/1991 | US5020418 Piston lock for power cylinders |
| 06/04/1991 | US5020383 Intermittent rotation drive apparatus utilizing air pressure |
| 05/30/1991 | WO1991007594A1 Pivoting actuator and a pop-up target incorporating same |
| 05/30/1991 | WO1991007304A1 Cylinder-piston unit |
| 05/30/1991 | CA2068315A1 Pivoting actuator and a pop-up target incorporating same |
| 05/29/1991 | CN2077923U Energy saving cylinder with valve |
| 05/28/1991 | US5019121 Helical fluid-actuated torsional motor |
| 05/28/1991 | US5018506 Fluid controlled biased bending neck |
| 05/28/1991 | US5018436 Folded bladder for fluid dynamic muscle |
| 05/23/1991 | DE4037489A1 Extruded aluminium frame tube - has two smooth cylindrical cavities defined in rectangular bar cross=section |
| 05/23/1991 | DE4036589A1 Zylinder-kolben-einheit Cylinder-piston unit |
| 05/22/1991 | EP0428406A1 Reciprocating actuator |
| 05/22/1991 | CN1051612A High-speed hydraulic servo cylinder |
| 05/21/1991 | US5016519 Linear drive |
| 05/14/1991 | US5014950 Mounting clamp for securing apparatus to outside of tie rod cylinder |
| 05/14/1991 | US5014603 Hydraulic actuator having frangible or deformable components |
| 05/14/1991 | US5014602 Hydraulic cylinder unit capable of being set in three positions |
| 05/14/1991 | US5014601 Working cylinder |
| 05/14/1991 | US5014600 Bistep terminator for hydraulic or pneumatic muscle |
| 05/14/1991 | US5014598 Fluid pressure actuator |
| 05/08/1991 | EP0426502A1 Apparatus for operating a sliding door member |
| 05/08/1991 | EP0426058A1 Hydraulic actuator having frangible or deformable components |
| 05/08/1991 | DE3936439A1 Permanent magnet cylinder unit without piston rod - involves method of aligning power transmission member |
| 05/02/1991 | EP0425329A1 Hydraulic cylinder with variable compressive force and power steering device for an automotive vehicle equipped with such a cylinder |
| 05/02/1991 | EP0424389A1 Valve means at a cylinder |
| 05/02/1991 | EP0424378A1 Rotator for crane-mounted working implements, especially tree-processing units. |
| 04/30/1991 | US5011180 Digital suspension system |
| 04/24/1991 | EP0268666B1 Piston-and-cylinder arrangement with radially-yieldable piston head |
| 04/23/1991 | US5009068 Pneumatic cylinder with positioning, braking, and feed rate control |
| 04/18/1991 | WO1991005188A1 Construction for pressing seal member of seal device |
| 04/18/1991 | WO1991005187A1 Fastening device for actuating cylinders |
| 04/17/1991 | EP0422458A2 Displacement transducer |
| 04/16/1991 | US5007330 Rotary actuator and seal assembly for use therein |
| 04/16/1991 | US5007327 Servo actuator |
| 04/16/1991 | CA1283007C Device for converting energy of fluid medium into mechanical work of working member |
| 04/10/1991 | CN1050595A Hydraulic assembly and hydraulic line |
| 04/09/1991 | US5005447 Torque wrench |
| 04/09/1991 | CA1282653C Fluid cylinder cushioning system |
| 04/03/1991 | EP0420828A2 A sealing band for pressurized fluid piston-cylinder devices |
| 04/03/1991 | EP0419810A1 Power unit |
| 04/02/1991 | US5003864 Geared air actuator |
| 03/27/1991 | EP0418507A1 Device for braking and/or jamming |
| 03/26/1991 | US5002441 Drilling unit |
| 03/26/1991 | US5002143 Landing gear steering apparatus |
| 03/26/1991 | CA1282139C Monitoring system for position sensing and reciprocating rod used therein |
| 03/21/1991 | WO1991003652A1 Cylinder with built-in stroke sensor |
| 03/21/1991 | DE3929246A1 Hydraulic linear motor for aircraft cabin hood - uses interaction of working piston and stop piston |
| 03/19/1991 | US5000077 Enclosed adjustable servo-actuator |
| 03/19/1991 | CA1281614C Lockable piston-cylinder assembly |
| 03/13/1991 | EP0417024A1 Piston-cylinder assembly containing means for determination and acknowledgement of the piston position |
| 03/13/1991 | CN2073048U Automatic reciprocatable liquid-controlled cylinder system |
| 03/12/1991 | US4998459 Rodless fluid actuated motor with improved sealing characteristics |
| 03/07/1991 | CA2024446A1 Sealing band for pressurized-fluid piston-cylinder devices |
| 03/06/1991 | EP0415053A1 Working machine with a member sliding in a housing |
| 03/06/1991 | EP0415046A1 Hydraulic drive device |
| 03/06/1991 | EP0414784A1 Improvements relating to linear movement sensors |
| 03/06/1991 | CN2072614U Hydraulic sealing oil cylinder |
| 03/05/1991 | US4997160 Ball lock control valve actuation plunger - hydraulic type |
| 03/05/1991 | US4996906 Actuating assembly for hydraulic elevators |
| 03/05/1991 | CA1280951C Device at pneumatic cylinders |
| 02/27/1991 | EP0414403A1 Pressure actuator |
| 02/27/1991 | EP0232285B1 A valve actuator system for controlling of valves |
| 02/27/1991 | CN1049548A Hydraulic sealing device |
| 02/26/1991 | US4995305 Actuator employing a fluid under pressure for the driving in rotation of a rotary shaft |
| 02/26/1991 | US4995304 Extendable cylinders of elastically variable length for use in a pump |
| 02/26/1991 | CA1280672C Locking cylinder |
| 02/26/1991 | CA1280671C Device for pressure fluid cylinders |
| 02/25/1991 | CA2016377A1 Pressure actuator |
| 02/21/1991 | WO1991002168A1 Piston lock for power cylinders |
| 02/20/1991 | CN2071718U Automatic off-normal protection device for piston of cylinder |
| 02/14/1991 | DE4025432A1 Distance measurement system esp. for hydraulic cylinder - has conical measurement element varying air gap by moving w.r.t. annular coil |
| 02/12/1991 | US4991548 Compact valve actuator |
| 02/12/1991 | US4991494 Sealing device for rodless pneumatic cylinders |
| 02/12/1991 | US4991493 Cylinder with two concentric pistons actuated by a pressure medium and extending to three times the length of the cylinder |
| 02/12/1991 | CA1280008C Fluid-power device with rollers |
| 02/07/1991 | DE4023946A1 Piston seals for pneumatic cylinder - with combination of slide rings and displaceable seals |
| 02/07/1991 | DE3925887A1 Double acting pneumatic drive unit - has at least one piston, with piston chamber, spring arrangement, pressure compartment and control |
| 02/07/1991 | DE3925219A1 Stroke control in piston-cylinder aggregate - makes use of damper to brake end of stroke movements |
| 02/05/1991 | US4989828 Ball lock control valve actuation plunger-mechanical type |
| 02/05/1991 | US4989652 Rotor for crane-mounted working implements, especially tree-processing units |
| 02/05/1991 | US4989498 Hydraulic actuator |
| 01/30/1991 | EP0410125A1 Piston unit with rolling membrane |
| 01/29/1991 | US4987825 Actuator with fluid transfer tubes |
| 01/29/1991 | US4987823 Location of piston position using radio frequency waves |
| 01/29/1991 | US4987822 Linear actuator |
| 01/23/1991 | EP0409632A2 Piston assembly |
| 01/23/1991 | EP0409094A1 A damping unit |
| 01/22/1991 | US4986301 Sub-sea valve actuator |