US PATENT SUBCLASS 137 / 624.11
.~ Programmer or timer

Current as of: June, 1999
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137 /   HD   FLUID HANDLING

561 R  DF  SYSTEMS {32}
624.11.~ Programmer or timer {5}
624.12  DF  .~.~> With independent valve controller
624.13  DF  .~.~> Repeating cycle {2}
624.18  DF  .~.~> Plural, sequential, valve actuations {2}
624.21  DF  .~.~> Clock alarm mechanism controlled
624.22  DF  .~.~> Biased latch, cam operated

DEFINITION

Classification: 137/624.11

(under subclass 561) Subject matter in which an actuating means provides (1) a continuously repetitive operation of one or more valves, (2) a single cycle of operation terminating in a position to restart an additional cycle, which cycle is more complex than a mere opening and closing of a single valve, or (3) a valve operation brought about at a particular time of day, or after a particular time delay period, following initiation of a nonfluid timer.

SEE OR SEARCH THIS CLASS, SUBCLASS:

169, for cyclic gas pressure control of liquid feed traps to boilers.

387, for washing machine cycle control by level responsive means.

SEE OR SEARCH CLASS

62, Refrigeration,

231, for time or program actuation of a refrigeration device.

110, Furnaces,

55, for timer control of a furnace door.

119, Animal Husbandry,

51.11+, for a timer controlled feeding device.

126, Stoves and Furnaces,

285.5, for a timer controlled damper.

210, Liquid Purification or Separation,

138+, for timer controlled liquid treatment and subclasses 141+ for programmer controlled liquid treatment.

222, Dispensing,

14+, for a dispenser having a cut-off operated by a selectively preset volume or rate of flow responsive mechanism, and subclasses 638+ for a timer controlled dispenser. Class 222 takes those patents which significantly claim a supply container.

239, Fluid Sprinkling, Spraying, and Diffusing, 66, for serially operated means distributing fluid to a diffuser, and subclasses 67+ for selectively preset means serving to cut off flow to a diffuser.

251, Valves and Valve Actuation,

48+, for a fluid dashpot, controlled valve or fluid controlled valve timer.

431, Combustion,

18+, for a burner assembly having a timer, programmer, or condition responsive control.