Pass door fire lintel

Details Pass door fire lintel Pass door fire lintel

1993-09-08

1995-01-03

Noland, Kenneth W.

Elevator, industrial lift truck, or stationary lift for vehicle

With closure means for shaft opening through landing

49120, 49305, 187400, D66B 1300

Patent

active

053777840

ABSTRACT:
A fire lintel for a freight elevator pass door that provides a fire stop in the gap between the door opening header and the upper panel of the pass door and that is displaceable for passage of the door above into the gap when the door above opens. Two embodiments of the fire lintel are characterized by overlapping baffle-like elements that afford a high resistance to the passage of gases into the hoistway in the event of a fire.

REFERENCES:
patent: 702715 (1902-06-01), Fishbeck
patent: 1104399 (1914-07-01), Allen
patent: 1709595 (1929-04-01), Schweig
patent: 2300630 (1942-11-01), Norton et al.
patent: 3302334 (1967-02-01), Totland

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