Patents
Patents for F15B 7 - Fluid-pressure actuator systems in which the movement produced is definitely related to the output of a volumetric pump; Telemotors (1,700)
01/1992
01/29/1992EP0258276B1 Pull-type piston and cylinder actuator
01/28/1992US5083433 Prefilled hydraulic actuator apparatus with separate reservoir and quick-connect between them
01/16/1992DE4022148A1 Hydraulic drive unit with linear motor - incorporates cylinder piston unit, has gear pump with by=pass pipe, cylinder and piston
01/09/1992DE4020776A1 Vorrichtung zum antrieb eines werkzeuges fuer eine axiale hin- und herbewegung des werkzeuges An apparatus for driving a tool for axial reciprocating movement of the tool
12/1991
12/30/1991WO1992000460A1 Device for driving a longitudinally reciprocating tool
12/12/1991DE4017960A1 Electro-hydraulic regulating valve - has servo to drive worm gear connected via nut to valve piston
12/04/1991EP0335926B1 Device for fastening perforating rules on printing machine cylinders
11/1991
11/07/1991CA2016170A1 Flow control system valve
10/1991
10/01/1991US5052279 Hydraulic cylinder for a hydraulic actuation arrangement of a motor vehicle friction clutch
09/1991
09/10/1991CA1288663C Syringe dispensed brake fluid for filling and purging master cylinder circuit from slave
08/1991
08/08/1991WO1991011621A1 A hydraulic master cylinder
05/1991
05/28/1991US5018352 Modular prefilled hydraulic control apparatus
05/14/1991US5014515 Hydraulic muscle pump
04/1991
04/24/1991EP0423828A1 A positioning device
04/10/1991CN1050595A Hydraulic assembly and hydraulic line
04/03/1991EP0419810A1 Power unit
03/1991
03/06/1991EP0414767A1 Fluid operable actuator
12/1990
12/25/1990US4979366 Method of providing modular prefilled hydraulic control apparatus
12/05/1990EP0401129A1 Hydraulic muscle pump
11/1990
11/20/1990CA1276605C Hydraulic fluid replenishment device
10/1990
10/17/1990EP0392722A2 Pneumatic remote control system
10/16/1990US4962751 Hydraulic muscle pump
10/09/1990US4961316 Controlled electric pump drive for hydraulic lifting arrangement with gas spring in motor
05/1990
05/08/1990US4923256 Hydraulic booster
05/02/1990EP0366365A2 Improvements in surgical and/or examination tables
04/1990
04/25/1990EP0364471A1 A hydraulic actuator for connection to a reservoir.
04/24/1990US4918920 Hydraulic remote control device for controlled members, such as external rear view mirrors on vehicles
04/21/1990CA2001156A1 Surgical and/or examination tables
04/05/1990DE3833484A1 Drive device for an electrical switching apparatus
03/1990
03/20/1990US4909131 Snap-connected multi-part cylinder for pull-type master cylinder
02/1990
02/08/1990WO1990000994A1 Hydraulic apparatus
02/08/1990DE3826547A1 Fluid-actuated motor
11/1989
11/30/1989DE3816608A1 Hydraulikzylinder Hydraulic cylinder
11/23/1989DE3915175A1 Telemotor
11/23/1989DE3817206A1 Actuator with centrally split housing, in particular for a passenger-car clutch
11/16/1989WO1989011040A1 Fluid operable actuator
10/1989
10/11/1989EP0335926A1 Device for fastening perforating rules on printing machine cylinders
10/10/1989US4872310 Electro-hydraulic actuator assembly
09/1989
09/19/1989US4866937 Double-acting master-slave cylinder system with volume compensating conduit
08/1989
08/22/1989US4858439 Device for varying a stroke
08/15/1989US4856282 Center-feed master cylinder with retainer for valve stem
08/01/1989US4852352 Manual override for relief of pulsator circuit with reservoir ball valve
05/1989
05/24/1989DE3738741A1 Geberzylinder Master Cylinder
05/23/1989US4831916 Piston assembly
05/03/1989EP0314660A1 A hydraulic lifting arrangement
04/1989
04/13/1989DE3731957A1 Vorrichtung zur befestigung von perforierlinien an zylindern bei druckmaschinen Device for fastening of Perforating on cylinders in printing machines
04/11/1989US4819429 Hydraulical drive system
04/06/1989WO1989002813A1 Device for fastening perforating rules on printing machine cylinders
03/1989
03/23/1989DE3730727A1 Cylinder for hydraulic systems
03/23/1989DE3730726A1 Piston/cylinder arrangement for hydraulic systems
03/15/1989EP0306737A2 Hydraulic pulling device
02/1989
02/14/1989US4804023 Hydraulic fluid replenishment device
01/1989
01/25/1989EP0300975A1 Hydraulic pressure transducer, particularly for transmission devices for motor vehicles and like applications
01/24/1989US4799462 Hydraulic valve drive for internal combustion engines
12/1988
12/21/1988EP0295395A1 Mastercylinder-arrangement
12/20/1988US4791895 Electro-magnetic-hydraulic valve drive for internal combustion engines
12/15/1988WO1988009734A1 A hydraulic actuator for connection to a reservoir
12/06/1988US4788821 Hydraulic shift for motor vehicle transmission
11/1988
11/22/1988US4785615 Hydraulic shift for motor vehicle automatic transmission
11/17/1988WO1988008801A1 A piston assembly
11/17/1988WO1988008800A1 Master cylinder
11/01/1988US4781025 Apparatus for the hydraulic transmission of mechanical power and for the simultaneous multiplication of the speed of rotation
09/1988
09/21/1988CN88101176A Hydraulic manual control unit
09/14/1988EP0282233A1 Hydraulic manual control unit
08/1988
08/31/1988EP0180584B1 Valve system with hydraulic power transmission
07/1988
07/28/1988DE3742750A1 Transmitter unit for a hydraulic actuating system
07/21/1988DE3700470A1 Hydraulic remote actuation system
07/12/1988US4756159 Prefilling apparatus for modular prefilled hydraulic control apparatus
06/1988
06/30/1988DE3700631C1 Drive device with closed hydraulic linkages
06/16/1988DE3735337A1 Hydraulic linear drive
06/07/1988US4749270 Micromanipulator for inverted-design microscope
05/1988
05/10/1988EP0258276A4 Pull-type piston and cylinder actuator.
05/04/1988EP0266242A1 Hydraulic remote control device for organs such as external rear view mirrors of vehicles
04/1988
04/07/1988WO1988002322A1 Hydraulic remote control device
03/1988
03/24/1988DE3631507A1 Pressure piping system
03/22/1988US4732219 Hammer drill with pneumatically driven percussion piston
03/09/1988EP0258276A1 Pull-type piston and cylinder actuator.
02/1988
02/23/1988US4726190 Pressure generator with check valve
01/1988
01/07/1988DE3720936A1 Master and/or slave unit for a hydraulic actuating system
12/1987
12/30/1987WO1987007927A1 Fluid transmission
12/17/1987DE3718698A1 Hydraulic actuating arrangement
12/09/1987EP0248505A1 Hydraulic power source, in particular for tilting the cab of a truck
11/1987
11/25/1987EP0246818A2 Hydraulic fluid replenishment device
11/11/1987EP0244878A2 Electromagnetic-hydraulic valve drive for an internal-combustion engine
10/1987
10/08/1987DE3611339A1 Brake device for drive motors, especially hydraulic motors
09/1987
09/29/1987CA1227400A1 Speed control mechanism for a hydrostatically driven vehicle
09/16/1987EP0236546A2 A flexible transmission device, particularly for control devices
08/1987
08/27/1987DE3606103A1 Arrangement for the fluidic transmission of a force or a feed movement
07/1987
07/28/1987US4682533 Vandal resistant and tamper proof pneumatic push button assembly for moving a volume of fluid
07/14/1987US4679976 Manipulator usable for a glass electrode or the like
07/02/1987WO1987003850A1 Pull-type piston and cylinder actuator
06/1987
06/02/1987US4669494 Hydraulic lock valve with partial return to tank for marine steering
06/02/1987US4669266 Closed-loop system for unequal displacement cylinder
05/1987
05/20/1987EP0222698A1 Drill hammer with an air-driven impacting piston
05/19/1987US4665802 Shipping and installation restraining strap for slave cylinder
04/1987
04/14/1987US4657223 Valve system with hydraulic power transmission
02/1987
02/25/1987EP0211171A1 Control device for a change-speed gear unit
02/17/1987US4642986 Hydraulic servo motor
02/10/1987CA1217695A Hydrostatic propulsion system and method with inching throttle and brake
12/1986
12/30/1986EP0205942A1 Hydraulic transmission
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