Is a
Patent attributes
Current Assignee
Patent Jurisdiction
Patent Number
Patent Inventor Names
Sylva Rother0
Michael Obergasser0
Date of Patent
January 19, 2010
0Patent Application Number
117806770
Date Filed
July 20, 2007
0Patent Primary Examiner
Patent abstract
A differential piston (1), designed as an annular piston, having pressure chambers (8, 9) with at least one of the pressure chambers (8, 9) being pressurized from radially inside the differential piston (1), via a hollow shaft (29) or another radially inner element (16), such as, part of a (cylinder) housing element (20) and a radial pressure medium-guiding channel (13) arranged directly within the differential piston (1), such that only a single additional sealing element (18) is required.
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