Air barrier device using pressurized swirls

Details Air barrier device using pressurized swirls Air barrier device using pressurized swirls

1977-06-08

1978-11-07

Vrablik, John J.

Pipes and tubular conduits

Repairing

138 37, 138 39, F24F 900, F15D 102

Patent

active

041239679

ABSTRACT:
An air barrier device using pressurized swirls for creating an air curtain barrier across a building opening, such as a door or window, to reduce heat transfer and thereby reduce both winter and summer energy losses. The device comprises a housing with an air intake for mounting within the building above the opening to be protected, a number of air discharge ducts having internal means for whirling the air passing therethrough and arranged to discharge the air downwardly across the opening as a series of distinct adjacent, oppositely rotating, pressurized swirls to form an air curtain barrier to energy transfer in either direction through the opening, and a blower mounted in the housing to receive air from the intake and discharge it through the ducts.

REFERENCES:
patent: 774730 (1904-11-01), Van Kannel
patent: 1770208 (1930-07-01), Kemnal
patent: 2715321 (1955-08-01), Burger
patent: 2775187 (1956-12-01), McClurkin
patent: 2898942 (1959-08-01), Rothermel
patent: 3023688 (1962-03-01), Kramer, Jr.
patent: 3157105 (1964-11-01), Tamm et al.
patent: 3229609 (1966-01-01), Larson et al.
patent: 3394755 (1968-07-01), Morrison

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