| 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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| 04/18/1989 | CA1252690A1 Power hydraulic gear |
| 04/13/1989 | DE3803268A1 Measuring device for a working cylinder |
| 04/13/1989 | DE3732741A1 Pressure-medium-actuated working cylinder with elastically flexible piston rod and elastically flexible piston band |
| 04/13/1989 | DE3732561A1 Verriegelbarer hydraulikzylinder Lockable hydraulic cylinders |
| 04/13/1989 | DE3731949A1 Working cylinder which can be actuated by pressure medium |
| 04/12/1989 | EP0311267A1 Pneumatic actuator |
| 04/12/1989 | EP0253852A4 Hydraulic rotary actuator utilizing rotation generated centrifugal head. |
| 04/12/1989 | CN2035815U Electric-controlling hydraulic actuator with capacitance sensor |
| 04/11/1989 | US4819547 Axially contractable actuator |
| 04/11/1989 | US4819546 Device for measuring feed movement |
| 04/06/1989 | WO1989002987A1 Lockable hydraulic cylinder |
| 04/06/1989 | WO1989002986A1 Hydraulic actuator or machine element |
| 04/05/1989 | EP0310028A2 Pressure generation and responsive mechanism |
| 04/05/1989 | EP0310022A1 Hydraulic telescopic device |
| 04/05/1989 | EP0309803A1 Pneumatic linear drive with a piston-and-cylinder assembly |
| 04/05/1989 | EP0309613A1 Parallel guiding ways for linear drives |
| 04/04/1989 | US4817504 Oscillatory actuator with direct contact shaft-shoulder to end cap seal |
| 04/04/1989 | CA1252171A1 Position indicator for an actuating drive |
| 03/30/1989 | DE3731073A1 Linear drive |
| 03/30/1989 | DE3730926A1 Double-acting cylinder |
| 03/29/1989 | EP0309304A1 Electrical/electonic position sensor |
| 03/29/1989 | EP0309066A1 Piston-cylinder device to be powered by a pressure fluid |
| 03/28/1989 | US4815695 Pipe propelling device |
| 03/28/1989 | US4815295 Valve actuator system for controlling valves |
| 03/23/1989 | DE3730808A1 Locking device for hydraulic or pneumatic working cylinders |
| 03/22/1989 | EP0307569A2 Piston-cylinder aggregate |
| 03/22/1989 | EP0193578B1 Pneumatic action accessory holder specifically for sewing machines |
| 03/21/1989 | US4813341 Pneumatic cylinder and means for powering a second pneumatic unit |
| 03/21/1989 | CA1251379A1 Fluid actuator including composite cylinder assembly |
| 03/16/1989 | DE3730045A1 Pneumatically operated pivotting vane motor |
| 03/15/1989 | EP0306507A1 A hydraulic cylinder with a built-in electric piston position indicator. |
| 03/15/1989 | EP0185953B1 Expandable cylinder with elastically variable length |
| 03/14/1989 | US4811963 Automatic indexing chuck for angular step-by-step movement of jaws |
| 03/14/1989 | US4811653 Vacuum booster enclosure |
| 03/14/1989 | US4811562 Adjusting drive |
| 03/09/1989 | WO1989002010A1 Pressure responsive hydraulic control circuit |
| 03/07/1989 | US4809587 Actuator with built-in pilot valve |
| 03/02/1989 | DE3727666A1 Pyrotechnical drive device for the tightening devices of safety belts |
| 03/01/1989 | EP0305306A1 Hydraulic actuator with piston rod positioning means |
| 03/01/1989 | CN1031357A Hydraulic door opening or closing device |
| 02/28/1989 | US4807520 Linear hydraulic motor having a frangible piston head |
| 02/28/1989 | US4807514 Differential hydraulic jack with damping system for the control of electric circuit-breakers |
| 02/23/1989 | DE3826359A1 Electrically driven actuator |
| 02/23/1989 | DE3727176A1 Hydraulic servo piston |
| 02/23/1989 | DE3727111A1 Position transmitter for hydraulic cylinders |
| 02/22/1989 | EP0268666A4 Piston-and-cylinder arrangement with radially-yieldable piston head. |
| 02/22/1989 | EP0255819B1 Flow medium cylinder with rapid resetting capability |
| 02/21/1989 | US4806915 Apparatus for indicating position of a piston within a cylinder |
| 02/16/1989 | DE3826184A1 Piston/cylinder arrangement |
| 02/14/1989 | US4804913 Positioning control system for a fluid powered cylinder |
| 02/14/1989 | US4803914 Rotational working cylinder |
| 02/07/1989 | US4802404 Composite cylinder assembly with removable liner assembly |
| 02/07/1989 | US4802401 Pneumatically movable device with a safety lock means |
| 02/02/1989 | DE3818833A1 Piston for pneumatic cylinders, especially cylinders without a piston rod |
| 02/02/1989 | DE3724557A1 Piston-cylinder unit for rolling stands |
| 02/01/1989 | EP0301845A1 Sensing system |
| 02/01/1989 | EP0301820A1 Pivotable actuator |
| 01/26/1989 | DE3812883A1 Hydraulic swivel drive with torque transmission |
| 01/26/1989 | DE3723203A1 Linear drive |
| 01/26/1989 | DE3723202A1 Actuating drive |
| 01/25/1989 | EP0300857A1 Assembling method for a servo motor, and a servo motor assembled according to this method |
| 01/24/1989 | US4800241 Proximity switch mounting plate |
| 01/24/1989 | US4799644 Actuator activating on-off valves |
| 01/24/1989 | US4799418 Vacuum actuator for vehicle speed control |
| 01/19/1989 | DE3725558C1 Hydraulic or pneumatic actuator - has constant sealing gap between piston and housing |
| 01/18/1989 | EP0299406A1 Pivot drive |
| 01/17/1989 | US4798128 Double acting cylinder unit |
| 01/12/1989 | DE3718308A1 Fluid working cylinder |
| 01/10/1989 | US4796516 Actuator providing guided linear displacement |
| 01/10/1989 | US4796515 Rodless cylinder |
| 01/10/1989 | CA1248431A1 Device in an actuator for elevation adjustment of work stations |
| 01/04/1989 | EP0297150A1 Position detector for the movable part of a fluid driven servomotor |
| 01/03/1989 | US4794841 Pneumatic drive mechanism for positioning apparatus |
| 01/03/1989 | US4794681 Fluid cylinder cushioning system |
| 01/03/1989 | CA1247984A1 Valve for use with hydraulic ram assemblies |
| 01/03/1989 | CA1247983A1 Rotary actuator with backlash elimination |
| 12/29/1988 | DE3820078A1 Hydraulic cylinder |
| 12/29/1988 | DE3740159A1 Actuating drive |
| 12/29/1988 | DE3720040A1 Telescopic cylinder |
| 12/29/1988 | DE3719155A1 Safety clamping device, accommodated in a housing, for locking the piston rod of a lifting cylinder |
| 12/28/1988 | EP0296936A1 Drive mechanism for fast and controlled separation of two coupled elements |
| 12/28/1988 | EP0296808A1 Monitoring system for position sensing and reciprocating rod used therein |
| 12/27/1988 | US4793450 Lockable piston-cylinder assembly |
| 12/27/1988 | US4793242 Brake Booster with a seal and guide unit |
| 12/27/1988 | US4793241 Piston position detector for fluid pressure cylinder |
| 12/22/1988 | DE3817293A1 Actuator for linear movements |
| 12/22/1988 | DE3719814A1 Hydropneumatic linear drive |
| 12/22/1988 | DE3718858A1 Alternating damper with a pivoted piston |
| 12/21/1988 | EP0296047A1 Multi-stage actuator with at least three sliding elements and telescopic jib incorporating this actuator |
| 12/20/1988 | US4792173 Fluid actuated limb |
| 12/20/1988 | US4791855 Cylinder locking device |
| 12/20/1988 | US4791854 Hydraulic piston and cylinder arrangement in which the outer wall of the piston rod is free from fluid |
| 12/07/1988 | EP0294350A1 Linear power unit |
| 12/07/1988 | EP0293368A1 Hydraulic cylinder-piston unit provided with a mechanical safety device, particularly for pantograph type motor vehicle lifts. |
| 12/01/1988 | WO1988009441A1 Cylinder-piston combination actuated by a pressure medium |
| 12/01/1988 | DE3717458A1 Pyrotechnic force element |
| 11/30/1988 | EP0292473A1 Method for reducing the piston speed, especially in the piston and cylinder assemblies of an excavating machine, and device for carrying out the method. |
| 11/24/1988 | DE3715142A1 Hydraulic or pneumatic drive device |
| 11/23/1988 | EP0292413A1 Load compensation device for a maintenance vehicle, and method for effectuating the compensation |
| 11/23/1988 | EP0291654A1 Hydraulic door opening or closing device |