False ceiling access panels

Details False ceiling access panels False ceiling access panels

1978-11-03

1980-12-09

Perham, Alfred C.

Static structures (e.g., buildings)

Window or window sash, sill, mullion, or glazing

Decorative grill attached to sash

49209, 49394, 52475, 52484, E05D 1510, E06B 112, E04B 552

Patent

active

042376637

ABSTRACT:
An access panel assembly for a suspended ceiling comprises one or more access panels pivotally mounted on an outer frame. The panel or panels can be raised to lie flush with the frame and with a suspended ceiling, or lowered to an access position. The pivotal mounting is provided by one or more pivot pins on the outer frame engaging guide slots in brackets on the one or more access panels. Each guide slot preferably comprises a generally horizontal portion for receiving its pivot pin when the panel is in its raised position and a portion extending downwardly and to one side of the access panel.

REFERENCES:
patent: 887470 (1908-05-01), Flagg
patent: 2070150 (1937-02-01), Venzie
patent: 2854706 (1958-10-01), Merlino
patent: 2926237 (1960-02-01), Sorenson
patent: 3001616 (1961-09-01), Griffin
patent: 3359695 (1967-12-01), Gazerro
patent: 3481088 (1969-12-01), Lickliter et al.
patent: 3714753 (1973-02-01), Jahn
patent: 3828507 (1974-08-01), Storer

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