Door closure

Details Door closure Door closure

1974-05-13

1976-06-01

Gilliam, Paul R.

Flexible or portable closure, partition, or panel

Plural strip, slat, or panel type

Movably interconnected

160202, E06B 312, E06B 900

Patent

active

039601960

ABSTRACT:
A door closure useful as such, but particularly as an air curtain device and process in which laterally spaced-apart parallel sliding sections of a closure formed of separable or pivotally connected vertically mounted panels form a flexible air duct between inner and outer sections connected to a nozzle supported at a bottom outlet between the sections to provide an air screen of homogeneity and resistance to lateral air currents in various open, partially open and closed door positions, by air passed into the top between the sections, from a plenum passing air received from a fixed blower mounted above or near the top of the door within a space enclosed by the walls of the opening.

REFERENCES:
patent: 888433 (1908-05-01), Thompson
patent: 1927982 (1933-09-01), Howard
patent: 2007552 (1935-07-01), Vetterlein
patent: 2057850 (1936-10-01), Sims
patent: 3430676 (1969-03-01), Aberg
patent: 3698465 (1972-10-01), Aberg

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