US PATENT SUBCLASS 225 / 93.5
.~ Including means to apply thermal shock to work


Current as of: June, 1999
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225 /   HD   SEVERING BY TEARING OR BREAKING

93  DF  BREAKING OR TEARING APPARATUS {8}
93.5.~ Including means to apply thermal shock to work


DEFINITION

Classification: 225/93.5

(under subclass 93) Device which includes means to perform the operation of this class by abruptly changing the temperature of a portion of the work.

(1) Note. Device herein breaks the work, at least in part, by causing internal stresses to be built up within the workpiece along the line at which severance is to occur.

(2) Note. Many of the devices herein sever very brittle material such as glass.