US PATENT SUBCLASS 92 / 9
.~ Flow control means positioned between chambers having a common wall movable with working member

Current as of: June, 1999
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92 /   HD   EXPANSIBLE CHAMBER DEVICES

8  DF  WITH MEANS TO CONTROL FLOW OF NON-WORKING ARRESTING FLUID FOR WORKING MEMBER {3}
9.~ Flow control means positioned between chambers having a common wall movable with working member

DEFINITION

Classification: 92/9

(under subclass 8) Apparatus in which the body of fluid is positioned in an enclosure having a movable partition therein which is in sliding sealing engagement with the enclosure wall providing a pair of chambers, said partition being secured for movement with the working member, fluid passage means extending between said chambers for placing said chambers in fluid communication with each other, and flow varying means positioned in said passage means.