US PATENT SUBCLASS 251 / 215
.~ Plural motions of valve

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

Internet Version by PATENTEC © 1999      Terms of Use


251 /   HD   VALVES AND VALVE ACTUATION

213  DF  MECHANICAL MOVEMENT ACTUATOR {10}
215.~ Plural motions of valve {5}
216  DF  .~.~> Screw threads in flow path
217  DF  .~.~> Valve head between actuator and screw
218  DF  .~.~> Encased {2}
225  DF  .~.~> Threads in removable sleeve
226  DF  .~.~> Biased {1}

DEFINITION

Classification: 251/215

(under subclass 213) Subject matter wherein the mechanical movement produces plural motions of the valves or valve components which motions are concurrent or consecutive.

(1) Note. An example of a mechanical movement which produces plural concurrent motions of a valve is one wherein the valve element is mounted on a screw device. Actuation of the screw both rotates and reciprocates the valve element.

SEE OR SEARCH THIS CLASS, SUBCLASS:

56, for plural movements of a fluid pressure operated valve.

84+, for valve heads movably connected to the stem or support so that they can accommodate themselves to the seat.

SEE OR SEARCH CLASS 123, Internal-Combustion Engines,

90.28+, for poppet valve operating mechanism which provides for nonvalving movement of the valve.

137, Fluid Handling,

330+, for nonvalving motion of a valve or valve seat, subclass 873 for movable deflector-spouts, in a lateral port of a fluid flow line, having plural motions and subclass 616.3 for plural motion valves which are actuated by a swinging flow conduit.