US PATENT SUBCLASS 92 / 24
.~.~ Element actuated or retained in operative position by relatively movable fluid responsive member

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

15  DF  WITH RELEASABLE STOP OR LATCH MEANS TO PREVENT MOVEMENT OF WORKING MEMBER {8}
23  DF  .~ Means includes element interfitting between working member and fixed part {2}
24.~.~ Element actuated or retained in operative position by relatively movable fluid responsive member {2}
25  DF  .~.~.~> With pivoted link between element and member
26  DF  .~.~.~> Resilient element

DEFINITION

Classification: 92/24

(under subclass 23) Apparatus in which the intermeshing element is moved to or from, or retained in working member movement preventing relationship by means of a member which is movable relative to said intermeshing element, said member being movable responsive to the action of a pressure fluid.