US PATENT SUBCLASS 401 / 177
.~.~.~ In reservoir having enlarged bore portion

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}
176  DF  .~.~ Slidable piston {6}
177.~.~.~ In reservoir having enlarged bore portion

DEFINITION

Classification: 401/177

(under subclass 176) Implement wherein a portion of the reservoir wall (usually adjacent the filling opening) is recessed or grooved so as to provide a zone in which the piston is out of sealing engagement with the cylinder wall.