US PATENT SUBCLASS 81 / 318
.~ With means to immobilize jaws

Current as of: June, 1999
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81 /   HD   TOOLS

300  DF  TOOL JAW(S) POSITIONED BY RELATIVELY MOVABLE PLURAL HANDLES (E.G., PLIERS) {15}
318.~ With means to immobilize jaws {5}
319  DF  .~.~> With lock-release means
320  DF  .~.~> With lock-disabling means
321  DF  .~.~> Including spring-urged handles or jaws {1}
323  DF  .~.~> Spring-urged latch element(s)
324  DF  .~.~> Positive lock means {1}

DEFINITION

Classification: 81/318

(under subclass 300) Tools including means for holding the jaws against movement relative to each other despite continued application of force by the operator tending to urge the handles together or apart.

(1) Note. Included in this subclass are tools which require continued application of said force urging the handles together or apart or urging a finger-pressed element to hold the jaws in the desired relationship.

(2) Note. The subclasses indented hereunder provide for tools which do not require continued application of force by the operator to hold the jaws in the desired relationship.

(3) Note. Tools which provide means for preventing pivotal movement of the handles with respect to each other, but do not prevent movement of the jaws while the handles are so held are not classified in this or indented subclasses. For such tools see subclasses 315+.

SEE OR SEARCH THIS CLASS, SUBCLASS:

131, for means locking the jaws of a wrench into a desired relationship. 315+, and see (3) Note above.

SEE OR SEARCH CLASS

70, Locks,

19, for jaw type locks.

128, Surgery,

322, for forceps for grasping parts of the person and which forceps are locked to prevent release of the hold.