US PATENT SUBCLASS 220 / 89.4
.~.~ Fusible pressure relief means


Current as of: June, 1999
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220 /   HD   RECEPTACLES

694  DF  CONTAINER ATTACHMENT OR ADJUNCT {21}
89.1  DF  .~ Pressure relief means {2}
89.4.~.~ Fusible pressure relief means


DEFINITION

Classification: 220/89.4

Fusible pressure relief means:

(under subclass 89.1) Receptacle wherein the pressure relief means is a diaphragm or diaphragm-like device which melts to relieve excess pressure within the container.

SEE OR SEARCH CLASS

122, Liquid Heaters and Vaporizers,

504.1, and 504.3 for a liquid heater or vaporizer with a fusible control for a safety device.

137, Fluid Handling,

72+, for a fusible fluid-control element.

169, Fire Extinguishers,

19+, 37+, 42, and 56+ for a fire extinguishing mechanism with a fusible control element. 431, Combustion,

21, for a fusible control element for a combustion device (e.g., a burner).