Movable or removable closures – Processes
Patent
1988-09-13
1990-04-10
Kannan, Philip C.
Movable or removable closures
Processes
49170, E06B 300
Patent
active
049148648
ABSTRACT:
A fire door having a hatch disposed in the lowermost outer corner of the same adapted to swing open to provide sufficient space for the passage of fire hose through the door, the hatch being a minor portion of the door whereby the major portion of the door can be kept closed after the placement of hose through the door.
REFERENCES:
patent: 1186566 (1916-06-01), Fogg
patent: 2315365 (1943-03-01), Christy
patent: 4754797 (1988-07-01), Sronce
patent: 4760872 (1988-08-01), Hale, Jr.
Kannan Philip C.
Slough J. Helen
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