Heat-released plug

Details Heat-released plug Heat-released plug

1984-12-27

1986-10-14

Nase, Jeffrey V.

Fire extinguishers

Sprinkler heads

Direct support

138 89, 138 98, 169 37, 411 34, A62C 3718

Patent

active

046167102

ABSTRACT:
A heat-released plug for temporarily stopping the flow of fluids from a variety of opening. The basic plug is normally installed and mostly comprised of simple and inexpensive components from diverse areas, adapted to function as a temporary stopper. A pliable elastomer provides the sealing surface which is expanded and held in place by a common shaft, washers and a simple fastener. The assembly is installed using a pop-rivet gun. In one configuration for sprinkler heads, a fusible link is provided, which, when exposed to sufficient heat, releases the pliable elastomer allowing the sprinkler to function again. This configuration allows fire safety personnel to stop the flow of water from actuated automatic sprinklers, use only one hand and a pop-rivet gun with a plug which will again allow the sprinkler system to function in the event the fire rekindles, increasing the effectiveness and safety of fire personnel.

REFERENCES:
patent: 3021927 (1962-02-01), McKee, Jr.

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