US PATENT SUBCLASS 220 / 234
.~.~ Closure carried gasket and expander means

Current as of: June, 1999
Click HD for Main Headings
Click for All Classes

Internet Version by PATENTEC © 1999      Terms of Use


220 /   HD   RECEPTACLES

200  DF  CLOSURES {45}
233  DF  .~ Externally adjustable plug or gasket {2}
234.~.~ Closure carried gasket and expander means {2}
235  DF  .~.~.~> Screw actuated {2}
238  DF  .~.~.~> Cam actuated

DEFINITION

Classification: 220/234

(under subclass 233) Device wherein the gasket or packing is carried by the closure and is radially deformable between its operative and inoperative positions and wherein the manipulation of said gasket or packing is effected by expansion means likewise carried by said closure.