US PATENT SUBCLASS 72 / 394
BY THREE OR MORE COACTING RELATIVELY MOVABLE TOOLS (I.E., TOOL-COMPLEX)

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

394BY THREE OR MORE COACTING RELATIVELY MOVABLE TOOLS (I.E., TOOL-COMPLEX) {4}
395  DF  .~> With paired coplanar tool-faces (e.g., for stretching flat work)
396  DF  .~> Yieldable face portion or auxiliary tool on tool-couple element {2}
399  DF  .~> Concurrently actuated tools {2}
403  DF  .~> With means to actuate tools in sequence

DEFINITION

Classification: 72/394

BY THREE OR MORE COACTING RELATIVELY MOVABLE TOOLS (I.E., TOOL COMPLEX):

(under the class definition) Device comprising a plurality of tools each having a face portion which is designed and intended to engage work with deforming force at some time during an operation of the class type, and means to move or to guide the motion of at least two of said tools (or distinct face portions of one flexible tool) into engagement with work along different paths and/or at different times or with different velocities with respect to each other and to another such tool, in such manner that all said tool face portions are in simultaneous contact with the same work at some instant during said operation.

(1) Note. This subclass relates to a tool-complex*, which is distinguishable from a plural-tool-couple* by the condition that, in the operation of the former, all tools are concurrently in contact with the same workpiece at some instant during the operations. (See (1) through (4) Notes under subclass 381, which apply as well to this subclass 394).

(2) Note. The subclasses indented under subclass 394 generally involve concurrently movable tools; devices wherein tools are successively applied to work, as by a manipulative routine, are found in this subclass (394).

(3) Note. To complete the field of search for tool-complex*, see the search notes under subclass 381.