Roland Ewald

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Lohr, DE

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Patents Grantslast 30 patents

Information Patent Grant
Control for hydraulic drive or actuator
- Patent number 5,829,335
- Issue date Nov 3, 1998
- Mannesmann-Rexroth GmbH
- Roland Ewald
- D01 - NATURAL OR ARTIFICIAL THREADS OR FIBRES SPINNING
Information Patent Grant
Apparatus for the control of a hydromotor
- Patent number 4,732,076
- Issue date Mar 22, 1988
- G. L. Rexroth GmbH
- Roland Ewald
- F15 - FLUID-PRESSURE ACTUATORS HYDRAULICS OR PNEUMATICS IN GENERAL
Information Patent Grant
Apparatus for controlling a single action operating cylinder, espec...
- Patent number 4,383,476
- Issue date May 17, 1983
- G. L. Rexroth GmbH
- Roland Ewald
- B30 - PRESSES
Information Patent Grant
Hydraulic control valve
- Patent number 4,194,719
- Issue date Mar 25, 1980
- G.L. Rexroth G.m.b.H.
- Roland Ewald
- F15 - FLUID-PRESSURE ACTUATORS HYDRAULICS OR PNEUMATICS IN GENERAL