Gas separation – Plural serial basically diverse separating media – Plural stages in unitary casing
Patent
1993-03-12
1994-05-17
Hart, Charles
Gas separation
Plural serial basically diverse separating media
Plural stages in unitary casing
55356, 55364, 55471, 55472, 55473, 55521, B01D 5000
Patent
active
053124650
ABSTRACT:
An air filtering apparatus includes a fan body having an air intake and an air outlet. There is a fan within the body which draws air into the intake and forces it out of the outlet. There is at least one air filter between the intake and the outlet. A plenum chamber is connected to the fan body about the air outlet. The plenum chamber is a flexible bag of a sheet-like material which is inflated by air forced out of the outlet of the fan body. At least a portion of the plenum chamber is an air diffuser for air exiting the apparatus. The diffuser is more permeable than the filter.
REFERENCES:
patent: 3995414 (1976-12-01), Kew et al.
patent: 4909815 (1990-03-01), Meyer
patent: 5163985 (1992-11-01), Chen
Bodyshop Magazine, Fit & Finish, 1988, p. 28.
BodyShop Business' Blue Print, Clean Shop ad, Apr. 1988, p. 87.
BodyShop Business' Blue Print, Designing Clean Air Right into Your Shop, Apr. 1989, p. 25.
Chilton's ABRN, New Line of Downdraft Spraybake Prep Stations, Jan. 1991, p. 51.
Pro-Prep Work Stations, drawings of models PWS 6002, PWS 6502, PWS 6003 and PWS 6503, undated, p. 34.
Downdraft Mobile Prep Station, undated.
Blowtherm Brochure in Japanese, undated.
Cameron Norman M.
Hart Charles
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