Furnaces – Door casings and arches
Patent
1990-01-26
1991-07-09
Bennett, Henry A.
Furnaces
Door casings and arches
110173R, 110173B, 110176, 49141, F23M 1100, F23M 700
Patent
active
050295330
ABSTRACT:
A safety door for a furnace or like apparatus is operable to open under the force of a hydraulic cylinder when the pressure under the furnace exceeds a predetermined upper limit corresponding to an abnormally high pressure caused by an explosion within the furnace or like apparatus. The safety door thereby prevents the furnace from being permanently damaged by an explosion.
REFERENCES:
patent: 1944156 (1934-01-01), Feltham
patent: 2426084 (1947-08-01), Deloghia
patent: 2735386 (1956-02-01), Longenecker
patent: 3127891 (1964-04-01), Henneman et al.
patent: 3410288 (1968-11-01), Hajek
patent: 3730214 (1973-05-01), Brumm
patent: 4327241 (1982-04-01), Obenchain
Bennett Henry A.
Copermill Limited
Kilner C.
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