US PATENT SUBCLASS 452 / 84
.~.~ At least one surface rotates and moves cyclically towards and away from the other gripping surface

Current as of: June, 1999
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452 /   HD   BUTCHERING

71  DF  EPIDERMAL OUTGROWTH REMOVER {7}
82  DF  .~ Gripping type {2}
84.~.~ At least one surface rotates and moves cyclically towards and away from the other gripping surface {1}
85  DF  .~.~.~> Pinched between roller nip

DEFINITION

Classification: 452/84

At least one surface rotates and moves cyclically towards and away from the other gripping surface:

(under subclass 82) Subject matter wherein a gripping couple is formed, at least one member of the couple moves about an axis and moves into and out of contact with the other member at least once during its rotational cycle to accomplish the grasping and pulling operation.