Air filter

Details Air filter Air filter

1994-01-31

1995-06-13

Spitzer, Robert

Gas separation: apparatus

Solid sorbent apparatus

Plural diverse separating means

96147, 553853, 55499, 55501, 55521, B01D 5304, B01D 4612

Patent

active

054239036

ABSTRACT:
An air filter for use in filtering air entering an operator's cab of a human-operated machine. A fine mesh screen and air permeable fibrous cover are added to the air outlet side of a conventional air filter. An accordion-shaped filter element of the conventional filter is located upstream of the fine mesh screen. Granular filter material such as activated charcoal fills the space between the accordion-shaped filter element and the fibrous cover. An air-impermeable strip may be added at the top portion of the fine-mesh screen across the full width of the air filter to prevent air from flowing through a void in the granular filter material which may develop over time due to settling.

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patent: 4917862 (1990-04-01), Kraw et al.
patent: 5129929 (1992-07-01), Linnersten

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