US PATENT SUBCLASS 72 / 453.02
.~.~ Multiple or staged drive means

Current as of: June, 1999
Click HD for Main Headings
Click for All Classes

Internet Version by PATENTEC © 1999      Terms of Use


72 /   HD   METAL DEFORMING

429  DF  WITH MEANS TO DRIVE TOOL {11}
453.01  DF  .~ Including pneumatic- or fluid-actuated tool support {7}
453.02.~.~ Multiple or staged drive means {3}
453.03  DF  .~.~.~> With mechanical drive means {1}
453.05  DF  .~.~.~> Displacement additive
453.06  DF  .~.~.~> Pressure additive {3}

DEFINITION

Classification: 72/453.02

Multiple or staged drive means:

(under subclass 453.01) Apparatus including an additional means to force the tool to move toward the work and perform the desired deforming operation.

(1) Note. Means acting to move the tool in the direction away from the work, e.g., a biasing return spring, is not considered to be a tool drive means.

(2) Note. Means serving to yieldably connect or cushion a tool relative to a tool drive means is not considered to be a tool drive means.