US PATENT SUBCLASS 431 / 86
.~ By manually started timer or retarder, or by time of day device


Current as of: June, 1999
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431 /   HD   COMBUSTION

18  DF  TIMER, PROGRAMMER, RETARDER OR CONDITION RESPONSIVE CONTROL {26}
86.~ By manually started timer or retarder, or by time of day device {1}
87  DF  .~.~> Of combustion initiating means, e.g., match striker, etc.


DEFINITION

Classification: 431/86

(under subclass 18) Apparatus including (1) a time measuring device that is manually started and causes actuation of a control device at the expiration of a selected period or (2) a clock device that actuates a control at a desired time of the day.

SEE OR SEARCH CLASS

110, Furnaces,

192, for refuse incinerators or solid fuel furnaces provided with a timer control.

126, Stoves and Furnaces,

285.5, for a timer controlled damper.

137, Fluid Handling, 624.21, for a fluid handling system not specialized to combustion controlled by a clock alarm mechanism.

236, Automatic Temperature and Humidity Regulation,

46, for an automatic temperature or humidity control system with a timing element.

239, Fluid Sprinkling, Spraying, and Diffusing,

70, for a fluid discharge device not specialized to combustion with a preset timer for cutting off discharge.

251, Valves and Valve Actuation,

48+, for a fluid dash pot controlled valve or for a fluid controlled valve timer.