US PATENT SUBCLASS 83 / 375
.~ Work clamp

Current as of: June, 1999
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83 /   HD   CUTTING

374  DF  INTERRELATED TOOL ACTUATING MEANS AND MEANS TO ACTUATE WORK IMMOBILIZER {2}
375.~ Work clamp {9}
376  DF  .~.~> Tool deflected by guide on tightened clamp {1}
378  DF  .~.~> Clamp driven by reaction from tool force
379  DF  .~.~> With means providing for plural steps in clamping stroke
380  DF  .~.~> With sequencing means
381  DF  .~.~> With provision for manual control of clamp
382  DF  .~.~> Tool or tool support on movable clamp jaw
383  DF  .~.~> Clamp moved by direct impact of tool or tool support {1}
385  DF  .~.~> Clamp actuating means driven by tool or tool support {1}
388  DF  .~.~> Clamp driven by yieldable means {2}

DEFINITION

Classification: 83/375

(under subclass 374) Device in which the means cooperating with the tool moving means comprises a plurality of opposed solid jaws or surface elements which are made effective by movement of one or more of said jaws or surface elements to grip the work frictionally and hold it in desired position fixedly with respect to a tool station.

(1) Note. Clamps which act to move the work, as well as hold it in fixed position after movement ceases, are not found in this subclass, but will be found in the appropriate

subclass relating to work moving (including those directed to the work-moving, tool-moving relationship).

(2) Note. In this subclass are found disclosures of a clamp driven in timed relationship to a tool as from a common drive shaft or power train or from a separate power source and related to the tool stroke only by timing control mechanism.

(3) Note. For device actuated in timed relationship to a tool, and disclosed as being of utility as a "stripper" as well as a clamp or holddown, see appropriate subclasses indented under subclass 111.

SEE OR SEARCH THIS CLASS, SUBCLASS:

282+, for work clamping means effective during the dwell of intermittently effective work moving means which coincides with a tool stroke. 452+, for a cutting device including a separate, manually or randomly controlled or actuated clamp.

453+, for combined clamp and tool guide, wherein some clamps are actuated by or incidental to movement of tool.