Layered air filter medium having improved efficiency and pleatab

Details Layered air filter medium having improved efficiency and pleatab Layered air filter medium having improved efficiency and pleatab

1994-04-25

1995-06-27

Spitzer, Robert

Gas separation

Two or more separators

Plies or layers of different characteristics or orientation

55498, 55502, 55521, 55524, 55528, 55DIG5, 2104932, B01D 2706, B01D 2907

Patent

active

054275970

ABSTRACT:
A filter and method for making the filter. The filter has a first filter layer of high efficiency melt blown filter medium having an efficiency of pre-HEPA to HEPA, and a second filter layer of cellulose support medium by which the first filter layer is supported. The filter is pleated, and a plurality of dimples for separating a plurality of pleats can be fabricated on the pleat tips.

REFERENCES:
patent: 1411975 (1922-04-01), Matson
patent: 2724457 (1955-11-01), Besser
patent: 3361260 (1968-01-01), Buckman
patent: 3763633 (1973-10-01), Soltis
patent: 3925043 (1975-12-01), Matrone et al.
patent: 4268290 (1981-05-01), Barrington
patent: 4323374 (1982-04-01), Shinagawa et al.
patent: 4452619 (1984-06-01), Wright et al.
patent: 4650506 (1987-03-01), Barris et al.
patent: 4702940 (1987-10-01), Nakayama et al.
patent: 4714647 (1987-12-01), Shipp, Jr. et al.
patent: 4728349 (1988-03-01), Oshitari
patent: 4824451 (1989-04-01), Vogt et al.
patent: 4877433 (1989-10-01), Oshitari
patent: 4880448 (1989-11-01), Scherrer
patent: 4886527 (1989-12-01), Fottinger et al.
patent: 4917714 (1990-04-01), Kinsley, Jr.
patent: 4917942 (1990-04-01), Winters
patent: 4976858 (1990-12-01), Kadoya
patent: 5037455 (1991-08-01), Scheineson et al.
patent: 5071555 (1991-12-01), Enbom
patent: 5306321 (1994-04-01), Osendorf
Donaldson Company, Inc. brochure entitled Ultra-Web.RTM. High Performance Air Filtration, (1989).
Donaldson Company, Inc. brochure entitled Torit-Built.TM. Filters, (1990).

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