US PATENT SUBCLASS 72 / 300
.~.~ With interrelated clamp closer and clamp mover


Current as of: June, 1999
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72 /   HD   METAL DEFORMING

293  DF  BY USE OF NON-DEFORMING WORK-GRIPPING CLAMP AND RELATIVELY MOVABLE CLAMP, TOOL OR WORK-FORCER {9}
295  DF  .~ By individually non-deforming clamps {4}
300.~.~ With interrelated clamp closer and clamp mover


DEFINITION

Classification: 72/300

With interrelated clamp closer and clamp mover:

(under subclass 295) Subject matter utilizing means to move one or more of said clamp jaws or surface elements to effective (i.e., work-gripping) position, which means cooperates significantly with the means to move said movable instrumentality.

(1) Note. For placement in this subclass, there must be structure to interrelate the clamp-closing and clamp-moving means; spring-biased or self-actuated clamps (responsive to initial movement of the work) do not meet this requirement.

(2) Note. If metal deformation is accomplished by the closing of the clamp, the latter does not qualify as a "work-gripping clamp" for subclasses 293+ but constitutes instead an opposed-faced tool couple.

(3) Note. If the clamp is so adjusted or controlled as to allow slippage of the work during metal deformation, it is regarded as a tool element or tool couple for placement elsewhere in the schedule.

SEE OR SEARCH THIS CLASS, SUBCLASS:

312+, for interrelated clamp closer and tool mover.

417, for interrelated tool mover and blank-holder mover.