| Patents for F15B 11 - Servomotor systems without provision for follow-up action (16,384) |
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| 03/12/1992 | DE4113923C1 Control valve for hydraulic motor - has duct between main valve and motor containing spool valve |
| 03/12/1992 | DE4027899A1 Hydraulic servo for linear drive of piston - functions dependent on position of control unit formed as rocker |
| 03/11/1992 | EP0473827A1 Automatic shuttle valve |
| 03/04/1992 | EP0473030A1 Proportional 4-way seat valve |
| 03/04/1992 | EP0377576B1 Constant pressure regulation of grader blades |
| 03/01/1992 | WO1992004545A1 Quick drop valve |
| 03/01/1992 | WO1992004544A1 Load check and pressure compensating valve |
| 03/01/1992 | CA2088269A1 Load check and pressure compensating valve |
| 03/01/1992 | CA2064573A1 Quick drop valve |
| 03/01/1992 | CA2049792A1 Proportional seat-type 4-way valve |
| 02/27/1992 | DE4026959A1 Electrically driven unit with thrust rod - moves in cylindrical pipe with spindle, cover, hole and piston |
| 02/26/1992 | EP0471950A1 Combined valve modular control panel |
| 02/23/1992 | CA2038297A1 Multi-pressure control system |
| 02/18/1992 | US5088384 Hydraulic actuator controlled by meter-in valves and variable pressure relief valves |
| 02/18/1992 | US5088383 Multiplexed hydraulic control system with multiplexing valve having planar port array |
| 02/18/1992 | US5088283 Valve device for actuating the telescopic cylinder of a tipper |
| 02/11/1992 | CA1295533C Process for automatic control of percussion parameters of the striking pistonof an compressible pressurized fluid type apparatus and said apparatus |
| 02/04/1992 | US5085124 Directional control valve for pneumatic cylinder |
| 02/04/1992 | US5085052 Operating speed change-over device |
| 02/04/1992 | US5085051 Displacement of variable displacement pump controlled by load sensing device having two settings for low and high speed operation of an actuator |
| 01/29/1992 | EP0468944A1 An arrangement for controlling hydraulic motors |
| 01/29/1992 | EP0468548A2 Actuator with energy recovery return |
| 01/28/1992 | US5083430 Hydraulic driving apparatus |
| 01/28/1992 | US5083428 Fluid control system for power shovel |
| 01/25/1992 | CA2040379A1 Actuator with energy recovery return |
| 01/23/1992 | WO1992001163A1 Hydraulic drive system and valve device |
| 01/21/1992 | US5082245 Spill proof check valve apparatus |
| 01/21/1992 | US5081902 Apparatus for providing relief to a working chamber |
| 01/21/1992 | US5081839 Pressure compensated hydraulic system |
| 01/21/1992 | US5081837 Hydraulic control circuit |
| 01/16/1992 | DE4033976A1 Underground vehicle-lifting platform - has two rams with interconnected annular and inner chambers forming synchronising circuits |
| 01/15/1992 | EP0466582A1 Pressure oil supply/discharge circuit and valve device for use in said circuit |
| 01/14/1992 | US5079997 Piston seal device for a pneumatic cylinder |
| 01/09/1992 | DE4021018A1 Hydraulic control system for mobile earth mover - incorporates pressure adjustment system for emptying scoop |
| 01/08/1992 | EP0464481A1 Control device for a hydraulic motor |
| 01/08/1992 | EP0464305A1 Hydraulic control device |
| 01/07/1992 | US5077974 Constant power displacement control cutoff system with adjustable relief valve |
| 01/07/1992 | US5077972 Load pressure duplicating circuit |
| 01/04/1992 | WO1992001162A1 Load pressure duplicating circuit |
| 01/04/1992 | CA2059658A1 Load pressure duplicating circuit |
| 01/02/1992 | EP0463920A1 Pressure oil supply/discharge circuit and valve device for use in said circuit |
| 01/02/1992 | DE4020476A1 Load-pressure regulated hydraulic control system - monitors conditions to provide regulation of loads |
| 12/31/1991 | US5076143 Counterbalance valve with a relief function |
| 12/31/1991 | CA1293673C Control system for an impact ripper |
| 12/27/1991 | EP0462590A1 Hydraulic drive system for civil-engineering and construction machine |
| 12/27/1991 | EP0462589A2 Control system for load sensing hydraulic drive circuit |
| 12/17/1991 | US5072649 Double actuator with bypass lines for synchronized movement |
| 12/17/1991 | US5072648 Control system for a fluid operated jack |
| 12/12/1991 | WO1991019108A1 Piston-cylinder control device |
| 12/12/1991 | WO1991019107A1 Control system for a fluid operated jack |
| 12/12/1991 | WO1991019100A1 Device for and method of controlling vehicle for loading work |
| 12/10/1991 | US5070695 Hydrostatic drive system |
| 12/04/1991 | CN1014972B Oil hydraulic lift |
| 12/03/1991 | US5069317 Pneumatic shock absorber |
| 12/03/1991 | US5069037 Fluid supply system for vehicles |
| 11/30/1991 | WO1991019106A1 Pilot control circuit for load sensing hydraulic systems |
| 11/30/1991 | CA2062778A1 Pilot control circuit for load sensing hydraulic systems |
| 11/28/1991 | WO1991018212A1 Hydraulic system |
| 11/28/1991 | WO1991018211A1 Control valve provided with pressure compensated valve |
| 11/28/1991 | DE4017086A1 Double plunger hydraulic drive - operates at high pressure and has piston-rod passing through stationary component |
| 11/27/1991 | CN1014916B Control system for impact ripper |
| 11/26/1991 | US5067519 Safety valve for fluid systems |
| 11/26/1991 | US5067389 Load check and pressure compensating valve |
| 11/26/1991 | US5067323 Three position actuator arrangement |
| 11/26/1991 | US5067321 Hydraulic hoisting circuit with electrical control for relief valve adjustment pilot and pilot disable valve |
| 11/21/1991 | EP0457207A1 Hydraulic control device |
| 11/19/1991 | US5065665 Directional control valve for pneumatic cylinder |
| 11/19/1991 | US5065664 Control circuit for a cylinder allowing flow between an upper and a lower chamber |
| 11/19/1991 | CA1292211C Valve for the distribution of a liquid |
| 11/18/1991 | WO1991017901A1 Electromagnetically powered engine apparatus and method |
| 11/14/1991 | WO1991017363A1 Load sensing hydraulic system |
| 11/13/1991 | EP0298083A4 Load compensated valve |
| 11/12/1991 | US5063742 Method of controlling swing motion of a revolving superstructure and hydraulic control system for carrying out same |
| 11/12/1991 | US5063741 Engine-speed responsive cavitation preventing system |
| 11/12/1991 | US5063739 Pressurized pilot fluid |
| 11/06/1991 | EP0321475A4 Load responsive system having synchronizing systems between positive and negative load compensation |
| 11/05/1991 | US5062349 Fluid economizer control valve system for blowout preventers |
| 10/30/1991 | EP0454510A1 Control circuit for a hydraulic double acting cylinder and spool valve for such a circuit |
| 10/29/1991 | US5061175 Clamping cylinder system |
| 10/29/1991 | US5060475 Pilot control circuit for load sensing hydraulic systems |
| 10/29/1991 | US5060355 Machine tool with a high-pressure and a low-pressure hydraulic network |
| 10/24/1991 | DE4012890A1 Control arrangement for piston of position motor - involves formation of control edges on control slide |
| 10/22/1991 | US5058385 Pneumatic actuator with hydraulic control |
| 10/17/1991 | WO1991015338A1 Torque wrench |
| 10/16/1991 | EP0451274A1 Hydraulic controller |
| 10/15/1991 | US5056561 Remote controlled, individually pressure compensated valve |
| 10/15/1991 | US5056415 Pilot operated control valve system performing a support function |
| 10/15/1991 | US5056312 Hydraulic drive system for construction machines |
| 10/15/1991 | US5056311 Hydrostatic steering device |
| 10/10/1991 | DE4010996A1 Hydraulically actuated roll bar for motor vehicle - are synchronised by opening and closing supply valves at same frequency |
| 10/09/1991 | EP0450275A1 Mounting plate |
| 10/08/1991 | US5054599 End of fill detector for a hydraulic clutch |
| 10/02/1991 | EP0449768A1 Quick air relief valve |
| 10/01/1991 | US5052433 Starter connection for progressive pressurizing of pneumatic installations |
| 10/01/1991 | US5052179 Pump discharge flow rate controlled by pilot pressure acting on vehicle drive valves |
| 10/01/1991 | CA1289849C Hydraulic distributor for a percussion mechanism actuated by an incompressible fluid under pressure |
| 09/25/1991 | CN2085439U Decompression type auto-reciprocating cylinder |
| 09/24/1991 | US5050483 Flow control device |
| 09/24/1991 | US5050482 Apparatus for driving piston by fluid pressure |
| 09/24/1991 | US5050380 Means for receiving and subsequently emptying hydraulic fluid from a hydraulic system |