US PATENT SUBCLASS 137 / 625.61
.~.~.~.~ Variable orifice-type modulator

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

561 R  DF  SYSTEMS {32}
625  DF  .~ Multi-way valve unit {12}
625.2  DF  .~.~ Supply and exhaust {4}
625.6  DF  .~.~.~ Pilot-actuated {3}
625.61.~.~.~.~ Variable orifice-type modulator {1}
625.62  DF  .~.~.~.~.~> Opposed orifices; interposed modulator

DEFINITION

Classification: 137/625.61

(under subclass 625.6) Device wherein the valve actuating mechanism is connected to a fluid pressure line and responsive to pressure differentials therein to move the valve, and wherein the pilot includes a constantly discharging opening connected to the line, and a modulating restrictor adjacent the opening and movable to and from the opening to vary the rate of flow and modify the pressure to thereby actuate the valve.

SEE OR SEARCH THIS CLASS, SUBCLASS:

83, for a jet control modulator, per se.