Gas separation – With separating media bypass or system gas pressure relief – Valved bypass means
Patent
1980-07-17
1982-07-13
Nozick, Bernard
Gas separation
With separating media bypass or system gas pressure relief
Valved bypass means
55383, 55385A, 55387, 55467, 98 33R, 98 36, B01D 4602, B01D 5000
Patent
active
043392504
ABSTRACT:
An air filter arrangement for cleaning the ambient air in enclosed air spaces. Granular activated carbon and two particulate air filters provide the actual air filtration media to remove both gaseous and particulate air impurities. The structure of the air filter retains the particulate filters in position by friction. One of the particulate filters is placed between the granular activated carbon and the air filter metal retaining screen without intervening support or protection from the activated carbon. A fountain of fresh air is provided by directing the exhaust of the air blower toward the ceiling of the room thereby creating a low pressure area surrounding the air filter near the floor. Dirty air near the floor migrates toward the low pressure area and enters the air filter where it is cleaned. The remaining dirty air in the room sinks as a pool mass slowly toward the floor where it eventually enters the filter. Only an insignificant portion of the vertical clean air fountain mixes with the dirty air remaining in the room.
REFERENCES:
patent: 2214737 (1940-09-01), Dauphinee
patent: 3347025 (1967-10-01), Wiley
patent: 3513643 (1970-05-01), Tarala
patent: 3523409 (1970-08-01), Patterson
patent: 3721067 (1973-03-01), Agnew
patent: 3850598 (1974-11-01), Boehm
patent: 4055112 (1977-10-01), Larkfeldt
patent: 4191543 (1980-03-01), Peters
patent: 4227904 (1980-10-01), Kasmark et al.
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