Expansible chamber devices – Fluid conduit or port in fixed wall of working chamber
Patent
1988-06-27
1989-11-07
Garrett, Robert E.
Expansible chamber devices
Fluid conduit or port in fixed wall of working chamber
921691, 277227, F01B 3100
Patent
active
048784192
ABSTRACT:
A lightweight linear hydraulic actuator which is unusually inexpensive to fabricate includes a cylindrical barrel of metal tubing material, a head end gland and a rod end gland fastened to the barrel, a piston and a rod in the barrel with the rod extending through the rod end gland, ports in the sidewall of the barrel on opposite sides of the piston and fitting members having channels in registry with the ports, the fitting members including hoop type attachments around the exterior surface of the barrel and a curved surface mating with the curvature of the barrel. A circular groove is formed in the surface of the barrel around each of the ports and an O-ring seal is located in the grooves sealing against the curved surface of the fitting member. An axial extension forming part of each of the fittings includes a boss receiving a threaded fastener for fastening the fittings to the barrel.
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Allied-Signal Inc.
Denion Thomas
Garrett Robert E.
Smith Robert C.
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