Pressure relief port

Details Pressure relief port Pressure relief port

1984-12-07

1986-02-11

King, Lloyd L.

Refrigeration

With means preventing or handling atmospheric condensate...

Operating on insulation, e.g., vent to refrigerated compartment

62404, 98 87, 137526, 137855, F25D 2306

Patent

active

045692084

ABSTRACT:
A pressure relief port for relieving the pressure within an enclosure having a wall with first and second sides and a first opening therethrough. The pressure relief port includes a tube having a conduit therethrough sized to fit in the first opening in the wall to extend essentially intermediate the first and second sides of the wall. First and second end caps having respective openings therein are sized to fit on the first and second walls respectively, about the first opening. The tube extends into the first and second end caps. A flexible diaphragm extends substantially across the conduit in the tube for regulating air flow and is displaceable between a first position where the diaphragm substantially closes off the conduit to air flow and a second position where the diaphragm is displaced by air pressure to permit air to flow through the conduit to equalize pressure on opposite sides of the wall.

REFERENCES:
patent: 3167931 (1965-02-01), Bryson
patent: 3807444 (1974-04-01), Fortune
patent: 4257445 (1981-03-01), Cook et al.

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