US PATENT SUBCLASS 192 / 133
.~.~ Automatic guard

Current as of: June, 1999
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192 /   HD   CLUTCHES AND POWER-STOP CONTROL

116.5  DF  STOP MECHANISM {5}
129 R  DF  .~ Safety device {4}
133.~.~ Automatic guard {3}
134  DF  .~.~.~> Punch-press type
135  DF  .~.~.~> Cover {1}
137  DF  .~.~.~> Disabled transmission

DEFINITION

Classification: 192/133

(under subclass 129) Safety devices in which guards interlock with the power element of the machine to prevent the starting or the operative functioning of the machine or to throw out the drive when abnormal conditions exist.