Fire door assembly

Details Fire door assembly Fire door assembly

1982-09-15

1984-08-28

Kannan, Philip C.

Movable or removable closures

With means mounting closure for reciprocation

Pendant from horizontal guide

49 7, 49501, 52586, E05D 1302, E06B 300, E04C 110

Patent

active

044675623

ABSTRACT:
A fire door assembly for automatically closing an opening in a wall in response to a predetermined condition has two or more door panels, a connection system for connecting a side edge of one of the door panels to an adjacent side edge of the other door panel in an edge-to-edge relationship, and flame break barriers interposed between the side edges of the panels and the connection system to provide a flame-resistant barrier between the core of each panel and the connection system. Tie bars are secured to the top and bottom edges of the panels to reinforce the edge-to-edge connection. A support system for the door has a track that is free from all external interference to allow free passage of suitably configured rollers.

REFERENCES:
patent: 2104550 (1938-01-01), Bates
patent: 2128797 (1934-08-01), Bohnsack
patent: 2137767 (1938-11-01), Betcone
patent: 2414628 (1947-01-01), Battin
patent: 3325941 (1967-06-01), Prucha
patent: 3383796 (1968-05-01), Frederick, Jr. et al.
patent: 3438147 (1969-04-01), Lander
patent: 4035972 (1977-07-01), Timmons
patent: 4132042 (1979-01-01), DiMaio
patent: 4282687 (1981-08-01), Teleskivi
patent: 4294055 (1981-10-01), Andresen

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