Insulated smoke doors for cooler/freezer applications

Details Insulated smoke doors for cooler/freezer applications Insulated smoke doors for cooler/freezer applications

1992-10-29

1994-08-09

Milano, Michael

Movable or removable closures

Latch release of movement-stored energy

49386, 49 8, E05F 108

Patent

active

053354516

ABSTRACT:
A heavily insulated emergency smoke hatch door is equipped with an operating mechanism which is located external to a cooler and/or freezer. This external location of the operating mechanism provides for the accommodation of heavier weight doors without effecting the venting area or access to the interior of the cooler and/or freezer. A latching mechanism keeps the door in the closed position and may be equipped with an automatic release device which will release the door upon sensing of a fire for heat within the cooler and/or freezer. Once the hatch door is released, the operating mechanism is operable to open the door for venting and access.

REFERENCES:
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patent: 2983343 (1961-05-01), Lyons
patent: 3323438 (1967-06-01), Korff
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patent: 3601437 (1971-08-01), Lyons
patent: 3830016 (1974-08-01), Levine
patent: 3869873 (1975-03-01), Thomas
patent: 3896595 (1975-07-01), Anghinetti et al.
patent: 4090437 (1978-05-01), Bogaert
patent: 4517765 (1985-05-01), Mucha

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