US PATENT SUBCLASS 408 / 83.5
.~.~.~ Valve fitting

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

Internet Version by PATENTEC © 1999      Terms of Use


408 /   HD   CUTTING BY USE OF ROTATING AXIALLY MOVING TOOL

72 R  DF  WITH WORK-ENGAGING STRUCTURE OTHER THAN TOOL OR TOOL-SUPPORT {13}
79  DF  .~ Frictionally engaging sides of opening in work {1}
80  DF  .~.~ Opening coaxial with tool {2}
83.5.~.~.~ Valve fitting

DEFINITION

Classification: 408/83.5

Valve fitting:

(under subclass 80) Apparatus comprising structure particularly adapted to cut a shape on a workpiece to serve in cooperation with an opposing surface to selectively permit passage of fluid therebetween.