Air filter and method of construction

Details Air filter and method of construction Air filter and method of construction

1995-07-31

1996-11-12

Bushey, C. Scott

Coating processes

Foraminous product produced

Filter, sponge, or foam

55524, 55DIG5, 55DIG13, 55DIG24, 95285, B01D 4600

Patent

active

055738117

ABSTRACT:
The invention relates to a method of treating reticulated foam with a controlled migration treatment medium to produce an improved air filter. Reticulated foam is treated with a highly viscous oil that protects the foam from hydrolytic degradation and increases efficiency of the filter without causing unacceptable air restriction of the foam. An improved air filter made from treated and untreated layers of reticulated foam is also shown.

REFERENCES:
patent: 2751039 (1956-06-01), Hanly
patent: 2961710 (1960-11-01), Stark
patent: 3201926 (1965-08-01), Harrington
patent: 4099943 (1978-07-01), Fischman et al.
patent: 4178161 (1979-12-01), Rudner et al.
patent: 4350507 (1982-09-01), Greenough et al.

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