US PATENT SUBCLASS 92 / 20
.~ Engages power element movable relative to working 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}
20.~ Engages power element movable relative to working member

DEFINITION

Classification: 92/20

(under subclass 15) Apparatus comprising a member by which power is transmitted to or from the working member, said member being connected to said working member to permit relative movement therebetween and in which the movement preventing means is adapted to engage said member to prevent movement of said member and the working member.