.~ Of or by pressure of fluid work or work chamber atmosphere
DEFINITION
Classification: 432/47
(under subclass 36) Apparatus in which pressure within a work chamber, either of the atmosphere of the chamber or of fluid being heated, is sensed or controlled.
SEE OR SEARCH THIS CLASS, SUBCLASS:
24, for a process of modulating or stabilizing the temperature or pressure of the atmosphere in a heating chamber.
SEE OR SEARCH CLASS
34, Drying and Gas or Vapor Contact With Solids,
558, for the automatic control of the gas or vapor pressure in a treating enclosure of a drier or of a residual gas and solid contact device. 165, Heat Exchange,
279+, and 281+ for an automatic control responsive to or controlling the pressure in a combined heating and cooling system.
202, Distillation: Apparatus,
160, for a separatory distillation column having an automatic temperature or pressure control means.
219, Electric Heating,
496, for a pressure responsive control of the power supply to an electrical heater.
236, Automatic Temperature and Humidity Regulation,
26+, for an automatic temperature control system for a closed fluid heater that is pressure operated.
431, Combustion,
19, for automatic control of a burner responsive to pressure in a combustion chamber.
