Filter and process for the production thereof

Details Filter and process for the production thereof Filter and process for the production thereof

1989-12-21

1991-01-08

Hart, Charles

Gas separation

Two or more separators

Plies or layers of different characteristics or orientation

55524, 55527, 55528, B01D 4600

Patent

active

049831933

ABSTRACT:
A filter for removing dust from fluids, which comprises fibers bonded each other with a binder and hot-pressed, having a fiber density of 0.01 to 0.1 at the fluid inlet side and a fiber density of 0.05 to 0.5 at the fluid outlet side with a continuous fiber density gradient and having a uniform distribution of fiber material in direction of thickness, and a process for the production thereof. The filter is particularly useful as an air filter for automobiles or air conditioners.

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patent: 4286977 (1981-09-01), Klein
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