US PATENT SUBCLASS 83 / 784
.~.~ And apply drive force to both ends of tool

Current as of: June, 1999
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83 /   HD   CUTTING

746  DF  BY TOOL RECIPROCABLE ALONG ELONGATED EDGE {11}
783  DF  .~ With means to support tool at opposite ends {1}
784.~.~ And apply drive force to both ends of tool {2}
785  DF  .~.~.~> By flexible drive means
786  DF  .~.~.~> By reciprocating rigid support

DEFINITION

Classification: 83/784

(under subclass 783) Device in which energy to move the tool to-and-fro along its cutting edge is furnished at each of its longitudinal extremities either (a) simultaneously at each extremity or (b) alternately, first at one extremity and then

the other.

SEE OR SEARCH THIS CLASS, SUBCLASS:

752, for stored energy drive in one direction of movement only (e.g., spring return type).