Is a
Patent attributes
Patent Jurisdiction
Patent Number
Patent Inventor Names
Friedrich Engesser0
Date of Patent
April 28, 2009
0Patent Application Number
105517070
Date Filed
March 24, 2004
0Patent Primary Examiner
Patent abstract
The invention relates to a valve rotating device comprising a basic body, a cover which is rotatable and axially displaceable relative to the basic body about an axis of rotation, and a rotating device to rotate the basic body relative to the cover about the axis of rotation. In accordance with the invention an increased service life is achieved in that the rotating device has a freewheel which is in operative connection with the cover on the one hand and the basic body on the other hand. In one rotational direction the freewheel can be coupled in a rotationally fixed manner with the cover or the basic body, whereas in the opposite rotational direction the freewheel is rotatable with respect to the cover and the basic body respectively.
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