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Class Information
Number: 91/DIG.4
Name: Motors: expansible chamber type > Magnets
Description:


Patents under this class:

Patent Number Title Of Patent Date Issued
6205906 Rodless cylinder Mar. 27, 2001
5540137 Electrical contacting in electromagnetic wave piston position sensing in a hydraulic cylinder Jul. 30, 1996
5438909 Device for energy transmission for mechanical control, in particular for the control of braking pressure in a brake Aug. 8, 1995
5363738 Portable electrohydraulic trainer Nov. 15, 1994
5243897 Magnetically actuated fluid motor Sep. 14, 1993
5205200 Hydraulic booster device for linear actuator Apr. 27, 1993
5182979 Linear position sensor with equalizing means Feb. 2, 1993
5182980 Hydraulic cylinder position sensor mounting apparatus Feb. 2, 1993
5061079 Stirrer Oct. 29, 1991
5024250 Piston type accumulator for hydraulic system Jun. 18, 1991
5012643 Pressure-driven engine May. 7, 1991
4987822 Linear actuator Jan. 29, 1991
4973027 Jack Nov. 27, 1990
4898079 Electric or electronic position sensor device Feb. 6, 1990
4896584 Piston-cylinder assembly Jan. 30, 1990
4889035 Magnetically actuated valve for cyclically operating piston-cylinder actuator Dec. 26, 1989
4876945 Piston and cylinder unit Oct. 31, 1989
4846048 Hydraulic cylinder with piston and with a magnetic device for piston position determination Jul. 11, 1989
4793241 Piston position detector for fluid pressure cylinder Dec. 27, 1988
4754691 Fluid operated devices for moving articles Jul. 5, 1988
4744287 Rodless cylinder May. 17, 1988
4660460 Magnetic front seal for vacuum brake booster Apr. 28, 1987
4620474 Drive mechanism for transmitting force and motion along a path Nov. 4, 1986
4561344 Electro-fluidic control device Dec. 31, 1985
4509402 Magnetic reversing mechanism Apr. 9, 1985
4488477 Rodless cylinder Dec. 18, 1984
4415113 Impact pinner apparatus Nov. 15, 1983
4378726 Piston designed for use with a magnetic force pickup Apr. 5, 1983
4305448 Servo control mechanism for a curtain Dec. 15, 1981
4192223 Adjustment device, notably for metering reciprocating pumps Mar. 11, 1980
4176586 Piston and cylinder device Dec. 4, 1979
4043198 Positive displacement fluid flowmeter Aug. 23, 1977



 
 
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