US PATENT SUBCLASS 401 / 173
.~.~.~ On piston and reservoir wall

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  DF  .~ Piston-provided reservoir {2}
172  DF  .~.~ Movable by screw means {2}
173.~.~.~ On piston and reservoir wall

DEFINITION

Classification: 401/173

(under subclass 172) Implement wherein the cooperating screw elements are, respectively, on the periphery of the movable force-applying member and on the inner surface of the tubular wall.