US PATENT SUBCLASS 279 / 19
.~ Lost motion

Current as of: June, 1999
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279 /   HD   CHUCKS OR SOCKETS

9.1  DF  SOCKET TYPE {27}
19.~ Lost motion {5}
19.1  DF  .~.~> Swinging external yoke or detent {1}
19.3  DF  .~.~> Rotary socket
19.4  DF  .~.~> Spreading elements
19.5  DF  .~.~> Key retainer
19.6  DF  .~.~> Sleeve type retainer {1}

DEFINITION

Classification: 279/19

(under subclass 9) Devices wherein the object held in the socket is permitted a limited free reciprocating movement.

(1) Note. These devices are used mostly for impact-drills, riveters and punches.