Patents
Sitemap › F15 - Fluid-pressure actuators; Hydraulics or pneumatics in general › F15B - Systems acting by means of fluids in general; Fluid-pressure actuators, e.g. servomotors; Details of fluid-pressure systems, not otherwise provided for › F15B 15 - Fluid-actuated devices for displacing a member from one position to another; Gearing associated therewith
Patents for F15B 15 - Fluid-actuated devices for displacing a member from one position to another; Gearing associated therewith (21,171)
12/1991
12/10/1991US5070766 Hydraulic valve actuator
12/03/1991US5069076 Linear actuator
12/03/1991CA1292660C Fluid-power bearing actuator
11/1991
11/28/1991DE4038380C1 Activator mechanism for press element - includes pressurising cylinder to move element from outer work position to safe spacing with drive means
11/27/1991EP0458428A1 Apparatus with a device to slip out and in a flexible strip which protects a recess particularly for a rodless cylinder
11/27/1991EP0458051A1 Actuating cylinder, particularly door lock cylinder for rail vehicles
11/27/1991EP0457762A1 Actuating drive.
11/27/1991EP0435874A4 Pneumatic door operator having novel pneumatic actuator and lock
11/26/1991US5067390 Double-acting flexible wall actuator
11/19/1991US5065663 Electropneumatic or electrohydraulic linear drive mechanism
11/19/1991CA1292251C Precompressed spring structure
11/13/1991EP0455698A1 Fluid-powered precision oscillator.
11/12/1991US5063828 Actuator with a lock mechanism
11/12/1991US5063738 Pressure generation and responsive mechanism with high viscous fluid
11/06/1991EP0455012A1 Working cylinder for activation of ventilating and fire protection valves
10/1991
10/31/1991DE4012724A1 Drive element activated by pressure medium - has cylindrical chamber with piston connected to drive device pivoted in housing and produces restricted angle of rotation
10/30/1991CN1014539B Hydraulic rotating power cylinder
10/24/1991DE4112570A1 Hydraulic linear drive mechanism - has valve protruding into piston recess opened and shut by fluid pressure
10/23/1991EP0452702A2 Fixing device for a linear-movement unit
10/22/1991US5058614 Device for controlling the lift of a hydraulically operated valve
10/20/1991CA2040759A1 Locking device for a linear movement unit
10/17/1991WO1991015338A1 Torque wrench
10/16/1991EP0318533B1 Cylinder-piston arrangement actuated by a pressure medium
10/15/1991US5056418 Self-adjusting automatic locking piston for RAM blowout preventers
10/09/1991EP0450518A1 Compressed air actuator
10/09/1991EP0450501A1 Actuator
10/09/1991EP0450156A1 Protection device for a hydraulic jack piston rod
10/09/1991EP0449882A1 A fluid actuated cylinder assembly with a floating cylinder head
10/08/1991US5054374 Rotary actuator
10/08/1991US5054372 Adjustable shaft actuator
10/03/1991WO1991014871A1 Piston position sensing device
10/03/1991WO1991014852A1 Rotary actuator and method for forming a rotary piston
10/02/1991EP0449803A1 Swivel drive
10/02/1991DE4010040A1 Positioning of press cylinders - involves two cylinders with pistons of each rigidly interconnected by rod, one cylinder having by=pass time
10/01/1991US5052273 Flexible tubular wall pneumatic actuator with position transducer
09/1991
09/26/1991DE4008192A1 Continuously variable arrester for hydraulic cylinder - uses partially hollow piston rod to receive arresting component
09/25/1991CN2085440U Electric hydraulic actuator
09/24/1991US5050484 Hydraulic actuator with locking mechanism
09/19/1991WO1991014151A1 Cylinder device
09/19/1991WO1991013791A1 Hydraulic rack steering gear
09/18/1991EP0447379A1 A braking arrangement in operating devices for linear motion
09/18/1991EP0446969A2 Linear position detection device
09/18/1991EP0446694A1 Locking device for pneumatic cylinders
09/17/1991US5048656 Fluid operated clutch control system having latch member
09/17/1991US5048292 Dual pump traverse and feed system
09/12/1991DE4106739A1 Hydraulic ract=and=pinion steering gear - has both unions screwing axially into insert at free ram end
09/12/1991DE4003151C1 Setting cylinder esp. for mining - has slip wheel conversion drive in head component and rotary potentiometer in rocker arm
09/11/1991EP0446115A1 Multiple actuator, supply circuit for such an actuator and telescopic boom as an application of this actuator
09/03/1991US5044257 Rotary actuator and method for forming a rotary piston
09/03/1991US5044255 Brake regulator with second boost chamber
08/1991
08/28/1991EP0443225A1 Ball screw rotary actuator
08/27/1991US5042625 Damping unit
08/27/1991CA1288013C Air cylinder
08/21/1991EP0442859A1 An arrangement for attaching a rail to a piston-cylinder type control device
08/21/1991EP0442842A1 Hydraulic actuator with pressure intensifier
08/21/1991EP0441981A1 Cylinder with built-in stroke sensor
08/20/1991US5041784 Magnetic sensor with rectangular field distorting flux bar
08/20/1991US5040626 Walking robots having double acting fluid driven twistor pairs as combined joints and motors and method of locomotion
08/20/1991US5040452 Fluid actuators
08/20/1991US5040332 Pneumatic door operator
08/14/1991CN1053826A Pivoting actuator and pop-up target incorporating same
08/13/1991US5038894 Drive control apparatus
08/13/1991US5038672 Hydraulic rotary actuating apparatus
08/13/1991US5038669 RAM piston with internal reservoir and check valve
08/10/1991CA2035911A1 Arrangement for attaching a rail to a piston-cylinder type control device
08/10/1991CA2034649A1 Braking arrangement in operating devices for linear motion
08/08/1991WO1991011319A1 Pressure vessel made of composite material
08/08/1991DE4003298A1 Hydraulic pump or motor - has electro-viscous fluid seal that is controlled to generate rapid response
08/07/1991CN1053665A Hydraulic or pneumatic cylinder
08/06/1991US5037465 Plunger mechanism with a self-contained positioning device
08/06/1991US5036664 Fluid pressure actuator with removable piston and cartridge unit
08/06/1991CA1287342C Hydraulic jack with a system for checking the position of the piston
07/1991
07/31/1991WO1991011624A1 Actuator with automatic lock
07/31/1991EP0439242A1 Linear actuator
07/31/1991EP0438865A1 Plunger mechanism
07/31/1991CA2074832A1 Actuator with automatic lock
07/30/1991US5035171 Working cylinder and tension member therefor
07/30/1991CA1287040C Differential hydraulic jack with damping system for the control of electric circuit-breakers
07/25/1991WO1991010810A1 Improved double wall hydraulic cylinder
07/18/1991DE4000636A1 Hydraulic pressure operating element - has elastic element on piston end stop and piston by=pass
07/18/1991DE4000635A1 Piston for hydraulic servo element - incorporates flat piston disc with projection crown on either side
07/17/1991EP0306507B1 A hydraulic cylinder with a built-in electric piston position indicator
07/16/1991USRE33637 Sealing device for a pressure fluid cylinder without piston rod
07/16/1991US5031510 Evacuation spring for hydraulic/pneumatic muscle
07/16/1991US5031509 Anti-leak seal for pump motor
07/16/1991US5031504 Hydraulic jack with a system for checking the position of the piston
07/11/1991WO1991010070A1 Holding device for piston position detector
07/11/1991WO1991010069A1 Three-position actuator
07/10/1991EP0435874A1 Pneumatic door operator having novel pneumatic actuator and lock.
07/09/1991US5029776 Variable explosive source for an ejector system
07/03/1991EP0434991A1 Power cylinder
07/03/1991EP0434935A1 Geared air actuator
07/03/1991CN2080113U Synthetic diamond super high pressure hydranlic press operation oil sylinder
07/03/1991CN2080099U Plunger slide valve high efficienty pneumatic impact mechanism
07/02/1991US5027667 Spring actuator with rollers
07/02/1991CA1285438C Device for positioning an actuating cylinder
06/1991
06/29/1991CA2033032A1 Geared air actuator
06/27/1991WO1991009208A1 Rotary actuator and seal assembly for use therein
06/27/1991DE3942775A1 Hydraulic swivel motor for testing machine - with method of dimensioning two side annular spaces and central space
06/26/1991EP0433969A1 Arrangement on a pump unit
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