US PATENT SUBCLASS 137 / 436
.~.~.~ With flow guide or restrictor

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

386  DF  LIQUID LEVEL RESPONSIVE OR MAINTAINING SYSTEMS {11}
409  DF  .~ By float controlled valve {11}
434  DF  .~.~ Float arm operated valve {14}
436.~.~.~ With flow guide or restrictor {1}
437  DF  .~.~.~.~> External hood or deflector or annular outlet surrounding the inlet pipe

DEFINITION

Classification: 137/436

(under subclass 434) Apparatus including means to restrict or act as a guide for the flow of liquid to or from the valve controlled by the float.

(1) Note. Many of these restrictors have the effect of silencing the fluid flow.

SEE OR SEARCH CLASS

251, Valves and Valve Actuation,

117, and 118+ for other valves combined with flow guides or restrictors, and see the search notes to subclass 118.