.~ By combustion destructible element, e.g., fusible plug, etc.
DEFINITION
Classification: 431/21
(under subclass 18) Apparatus in which a control actuation results from the destruction of a heat fusible or consumable connection responsive to heat of combustion.
SEE OR SEARCH CLASS
122, Liquid Heaters and Vaporizers,
504.1, and 504.3 for a fusible type safety device in a boiler.
126, Stoves and Furnaces,
287.5, for a stove having a fusible release damper.
137, Fluid Handling, 72+, for a heat destructible or fusible control element in a fluid handling system of general utility.
