US PATENT SUBCLASS 254 / 216
.~.~ Having pressure element spaced therefrom to confine material or cable thereagainst

Current as of: June, 1999
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254 /   HD   IMPLEMENTS OR APPARATUS FOR APPLYING PUSHING OR PULLING FORCE

199  DF  PORTABLE IMPLEMENTS OR APPARATUS FOR TENSIONING FLEXIBLE MATERIAL OR FOR EXTRACTING STUMPS OR POLES {12}
213  DF  .~ Including rotatably driven drum for engaging either material or force transmitting cable {9}
216.~.~ Having pressure element spaced therefrom to confine material or cable thereagainst

DEFINITION

Classification: 254/216

Having pressure element spaced therefrom to confine material or cable thereagainst:

(under subclass 213) Implements or apparatus including an element spaced from the drum's periphery just far enough to allow the flexible member or cable to barely pass between the drum and element at their nearest point, the cable or member at this point is slightly compressed, or has a compressive force placed on it, by the drum and element, and consequently is caused to advance by the contact of the cable or member with the drum's periphery.

SEE OR SEARCH THIS CLASS, SUBCLASS:

333, for load-hauling or-hoisting apparatus including a rotatably driven drum and a pressure element spaced therefrom for confining a cable against its surface.