US PATENT SUBCLASS 92 / 62
.~ First working member moves second coaxial working member through separating abutment surfaces

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

61  DF  RELATIVELY MOVABLE WORKING MEMBERS {8}
62.~ First working member moves second coaxial working member through separating abutment surfaces {1}
63  DF  .~.~> With separate biasing means for a working member

DEFINITION

Classification: 92/62

(under subclass 61) Apparatus comprising a first working member movable along a path, and a second working member coaxial therewith, means on said first working member normally free of force transmitting engagement with said second working member at some point along the path of travel of said first working member and adapted to contact and move said second working member at some other point along the path of travel of said first working member.