Patents for F15B 15 - Fluid-actuated devices for displacing a member from one position to another; Gearing associated therewith (21,171)
05/1994
05/04/1994EP0594757A1 Electromagnetic apparatus for producing linear motion
05/04/1994CN2163894Y Integrated hydraulic motor
05/03/1994US5308220 Scoop-and-dump jack for shovel-loader
05/03/1994US5307729 Device for stroke end cushioning and speed regulating the movement of a piston in a fluid pressure cylinder
04/1994
04/28/1994WO1994008836A1 High performance power steering
04/28/1994DE4236057A1 Distance sensor for press. converter - has immersion piston, pneumatic controller, working piston displacement detector and electronic controller
04/26/1994US5305914 Pressurized gas bottle discharge device
04/26/1994US5305777 Speed controller
04/26/1994US5305683 Pressure-medium actuated linear unit
04/26/1994US5305682 Piping and wiring lead-out mechanism for rodless cylinder
04/26/1994US5305605 Hydraulic piston and cylinder unit
04/21/1994DE4334518A1 Hydraulic valve play adjustment mechanism - uses control opening connectable to fluid storage chamber, only communicating during circular phase of cam action
04/20/1994EP0592849A1 Linear position sensor
04/20/1994EP0592824A1 Bellows actuator for condition-responsive control device
04/20/1994EP0592755A1 Hydraulic unit
04/19/1994US5303638 Rodless piston and cylinder assembly for a reciprocating carriage
04/19/1994US5303631 Damped-action pyrotechnic actuator
04/17/1994CA2107637A1 Actuator
04/14/1994DE4334424A1 Rodless pneumatic cylinder for moving table mounted equipment - has compressed air passage on side of cylinder body with strip sealed slot which is opened by yoke on table to allow air flow to outlet on table
04/14/1994DE4243497C1 Pressure medium-operated positioning component - has number of piston-cylinder units displaceable in direction of longitudinal axis
04/14/1994DE4234014A1 Machine tool for model making - has feed cylinder assembled by threaded tension rods with ground extensions forming guideways for motor spindle
04/13/1994EP0591621A1 Rotary-linear-unit
04/13/1994EP0591614A1 Actuator
04/13/1994EP0455698B1 Fluid-powered precision oscillator
04/13/1994CN2161764Y Working oil cylinder of hydraulic press for producing artificial diamond
04/12/1994US5302062 Spindle clamping device for machine tool
04/12/1994US5301598 Piston-cylinder unit for producing and transmitting compressive forces
04/07/1994DE4233115A1 Piston and cylinder hydraulic aggregate for machine tool - uses cylinder end position support surface to absorb piston forces
04/06/1994EP0590290A1 Fitting with sensing probe
04/05/1994US5299489 Pressure cylinder with low tolerance fit capable of supporting large transverse loads
04/05/1994CA1328215C Servomotor actuated by a pressure medium
03/1994
03/31/1994WO1994007037A1 Positioning device for fluid cylinder
03/31/1994DE4332631A1 Piston connection for hydraulic cylinder piston rod - using two half rings fitted in seatings provided by piston rod and piston sleeve
03/31/1994DE4326737C1 Electrical release mechanism with piston - has piston-rod guide narrowed by bead which is expanded by ramp on rod to allow extension or retraction
03/31/1994DE4232569A1 Explosive charge seat belt pretensioner for vehicle - uses piston connected to extendable seal for expansion chamber.
03/30/1994EP0589863A1 Hydraulic cylinder
03/30/1994EP0589485A2 Pneumatic powered fastener device
03/29/1994US5297469 Linear fluid power actuator assembly
03/23/1994EP0588779A1 Hydraulic cylinder
03/23/1994EP0588064A1 Telescopic cylinder having at least two stages
03/23/1994EP0587848A1 Multistage hydraulic cylinder
03/22/1994US5295572 Device for pivoting a pivotable module out of the path of a conveyor belt
03/17/1994WO1994005916A1 Pressure-actuated cylinder with internal pressure relief valve
03/17/1994WO1994005583A1 Multiple ram assembly and recuperative drive system for hydraulic lift
03/17/1994DE4230781A1 Linear module for handling systems with function unit coupling flange plates - has additional cylinder(s) with separate pressure supply, coacting with main cylinder for path division
03/16/1994EP0586995A1 Cylinder for hydraulic and/or pneumatic installations
03/16/1994CN1024031C Structure for cylinder piston cabable stop once when up and down once
03/15/1994US5293812 Braking apparatus for cylinder
03/15/1994CA1327741C Anti-leak seal for pump motor
03/08/1994US5293015 Apparatus for adjustably positioning switches
03/03/1994WO1994004830A1 Actuator for rotatory movement driven by hydraulic or pneumatic fluid
03/03/1994DE4228308A1 Double-cylinder hydraulic drive control system e.g. for machine tool - compensates change in volume of pressure spaces of cylinder by piezoelectrically-actuated pistons located at ends of cylinder, with piezoelectric actuators closed off from pressure spaces
03/03/1994DE4228307A1 Proportional magnetic valve for hydraulic appts. e.g. regulating valve, pump or positioning motor - has strain gauge on leaf spring, one end of which is connected to housing, and other end of which is deflected according to position of control piston
03/02/1994EP0584322A1 Control cylinder for pneumatic control devices with signal contacts.
03/02/1994CN1083185A Closed hydraulic cylinder with damped stretching action
03/01/1994US5290981 Switch positioning apparatus and method
02/1994
02/24/1994DE4227563A1 Electrohydraulic position regulator with two-stage proportional valve - has pilot electrohydraulic stage used to drive main fluid power stage with both having displacement sensors
02/23/1994EP0583864A1 Pneumatic/electric actuator
02/22/1994US5287700 Flexible bellows actuation system
02/22/1994CA2003018C Landing gear turning device
02/17/1994WO1994003738A1 Hydraulic actuators
02/17/1994DE4226604A1 Linear ball bearing mounted slide with slotted drive cylinder - has guideways secured by two part clamping rail which hooks into longitudinal slot of cylinder body and is tightened by screws passing through rail into guideway
02/16/1994EP0582782A1 Rodless cylinder
02/15/1994CA1327056C Pneumatic door operator
02/10/1994DE4225918A1 Slide guide, for slides of band cylinders - has guide means provided on both head parts of slide and comprises slide shoes, for piston connecting rod-less work cylinder
02/10/1994DE4225563A1 Coupling between linear ball bearing mounted slide and slotted drive cylinder - consists of easily removable stepped coupling pin whose lower end engages slot in cross pin of cylinder drive bracket with two degrees of freedom to allow for misalignment
02/09/1994CN2155456Y Gasoline tank separated hydraulic cylinder for agricultural machineries
02/03/1994WO1994002710A1 Rotary valve actuator
02/02/1994EP0581270A2 Telescopic system of several plunger-type cylinders, particularly for multistage telescope jibs of cranes or the like
02/01/1994US5282378 Fluid actuated, double acting machine for punching, cutting, bending or the like
02/01/1994CA1326690C Apparatus for moving items
01/1994
01/26/1994EP0580319A1 Hydraulic rotary actuators for robotic applications
01/26/1994EP0579919A1 Pneumatic linear drive with locking for ends of travel
01/25/1994US5281034 Shaft fitted rotatably in the casing of a pressure chamber
01/25/1994US5280704 Lock for a thrust reverser mechanism, a thrust reverser mechanism, and a thrust reverser
01/20/1994WO1994001683A1 Lockable telescopic device and use of the same
01/20/1994WO1994001656A1 Impact damping means for power cylinders
01/19/1994EP0578995A1 Pneumatic rotary actuator with increased starting torque
01/19/1994EP0518922B1 Hydraulic rack steering gear
01/18/1994US5279325 Pneumatic control drive
01/18/1994US5279207 Rodless cylinder
01/18/1994CA1326245C Pneumatic door operator
01/13/1994DE4222923A1 Fluidic control element with valve, for use in motor vehicles - has actuator member, coupled to mechanical locking unit for valve operation
01/13/1994DE4222525A1 Drive unit to generate slow one-directional driven shaft rotation - has curved working chambers around rotary axis, which are surrounded by piston formed by cylinder ring section
01/12/1994EP0577628A1 Proportional mechano-electronic actuator means.
01/11/1994US5277101 Rodless cylinder apparatus
01/11/1994US5277049 Rivet setting device
01/06/1994WO1994000737A1 Radio frequency linear position sensor
01/06/1994WO1994000706A1 Fluid pressure cylinder
01/05/1994DE4230049A1 End stop for pneumatic servo drive of vehicle door - has profiled noses each side of pneumatic piston with restricted flow by-pass ducts
01/05/1994DE4221459A1 Hydraulic servo steering with overload protection - has direct connection between pressure-charged working chamber and pressure connection of other working chamber
01/05/1994DE4219906A1 Hydraulic cylinder with axially movable piston - contains piston with inlet and outlet passages containing flow control valves
01/04/1994US5275505 Locking system for boat water-lifts
01/04/1994US5275088 Rodless cylinder
01/04/1994US5275086 Fluid actuator with internal pressure relief valve
12/1993
12/29/1993CN2151294Y Structure of hydraulic and pneumatic pressure rotary cylinder
12/28/1993US5273405 Fluid cushioning apparatus for hydraulic intensifier assembly
12/28/1993CA1325664C Power transmission
12/23/1993WO1993025865A1 Position detection system
12/23/1993WO1993025818A1 Actuator for transfer of forward and backward rotational movement