Expansible chamber devices – With guide or seal on cylinder end portion for piston or... – Non-metallic seal means between piston or member and end...
Patent
1994-05-27
1995-10-10
Denion, Thomas E.
Expansible chamber devices
With guide or seal on cylinder end portion for piston or...
Non-metallic seal means between piston or member and end...
92 24, 92 77, 92261, 277 1, 277 31, F16J 1518
Patent
active
054561604
ABSTRACT:
A method of reducing seal stiction in a hydraulic cylinder is provided comprising the steps of providing a hydraulic cylinder, having a housing, a piston, and a seal, providing apparatus for rotating the seal about the piston, and rotating the seal about the axis of the piston at the same time as the piston begins to axially displace.
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Denion Thomas E.
Otis Elevator Company
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