US PATENT SUBCLASS 401 / 171
.~ Piston-provided reservoir


Current as of: June, 1999
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401 /   HD   COATING IMPLEMENTS WITH MATERIAL SUPPLY

143  DF  INCLUDING MEANS TO APPLY MATERIAL-MOVING FORCE {10}
171.~ Piston-provided reservoir {2}
172  DF  .~.~> Movable by screw means {2}
176  DF  .~.~> Slidable piston {6}


DEFINITION

Classification: 401/171

(under subclass 143) Implement including a reservoir* comprising a tubular wall defining an enclosure; and a member movable relative to, and in peripheral, substantially sealing engagement with, the wall; so as to cause a force-applying change in the density of air in, or the effective capacity of, the reservoir.

SEE OR SEARCH THIS CLASS, SUBCLASS:

141, for an implement including a follower which floats on the free surface of the coating material in the reservoir.

143, for a force-applying follower which is not substantially is sealing engagement with the reservoir wall.

150, for an implement including a piston and cylinder located in or at the feeder*.