US PATENT SUBCLASS 137 / 243.2
.~.~.~.~ Spring pressed


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

Internet Version by PATENTEC © 1999      Terms of Use



137 /   HD   FLUID HANDLING

237  DF  WITH CLEANER, LUBRICATION ADDED TO FLUID OR LIQUID SEALING AT VALVE INTERFACE {2}
238  DF  .~ Cleaning or steam sterilizing {4}
242  DF  .~.~ Mechanical cleaning {2}
243  DF  .~.~.~ Valve grinding motion of valve on seat {6}
243.2.~.~.~.~ Spring pressed


DEFINITION

Classification: 137/243.2

(under subclass 243) Devices provided with a spring which permits regrinding of the valve head on its seat.