Cylinder assembly
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
-
Dec 31, 2002
Grant Date -
Feb 7, 2002
app pub date -
Jun 21, 2001
filing date -
Aug 2, 2000
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A manifold (2) is provided with a first passage (4) for supplying pressurized oil and a second passage (5) for air venting. The manifold (2) has a support surface (9) to which a housing (12) of every hydraulic cylinder (7) is hermetically fixed through a sealing member (10). A piston (14) is inserted into a cylinder bore (13) of the housing (12). A hydraulic chamber (15) is formed between the piston (14) and the support surface (9). The hydraulic chamber (15) directly opposes to the support surface (9). The first passage (4) communicates with the respective hydraulic chambers (15) through branched passages (17). The hydraulic chamber (15) has an upper portion communicated with the second passage (5) through an air vent passage (18).
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