Valve assembly for air treatment apparatus

Details Valve assembly for air treatment apparatus Valve assembly for air treatment apparatus

1987-02-24

1988-05-17

Nilson, Robert G.

Heat exchange

Regenerator

98 32, 1374938, 137512, 1375278, 165 54, 165909, F28D 1700

Patent

active

047444096

ABSTRACT:
A valve assembly for use with air treatment apparatus is disclosed. The assembly includes shutter valves disposed in the air flow channels and actuatable by the flow of air therethrough.

REFERENCES:
patent: 216804 (1879-06-01), Norton
patent: 588969 (1897-08-01), Finagin
patent: 999305 (1911-08-01), Gurnett
patent: 1270961 (1918-07-01), Lippert
patent: 4049404 (1977-09-01), Johnson
patent: 4111228 (1978-09-01), Simionescu
patent: 4362091 (1982-12-01), Cox
patent: 4391321 (1983-07-01), Thunberg
patent: 4493366 (1985-01-01), Ekman

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