Gas separation – Specific media material – Fibrous or strand form
Reexamination Certificate
2005-02-22
2005-02-22
Pham, Minh-Chau T. (Department: 1724)
Gas separation
Specific media material
Fibrous or strand form
C055S382000, C055S486000, C055S527000, C055SDIG005, C055SDIG003, C264S169000, C264S210300, C264S210400, C264SDIG004
Reexamination Certificate
active
06858057
ABSTRACT:
A filter media comprising a synthetic microfiber polymer fine fiber web wherein the diameter of the fibers is between about 0.8 to about 1.5 microns. The filter media is acceptable for use in ASHRAE applications. Constructions with a low DP backing, support or prefilter layers of coarse fiber provide large area filter webs of high efficiency and a stable and high threshold value of alpha above eleven.
REFERENCES:
patent: 3692618 (1972-09-01), Dorschner et al.
patent: 3802817 (1974-04-01), Matsuki et al.
patent: 3849241 (1974-11-01), Butin et al.
patent: 3855046 (1974-12-01), Hansen et al.
patent: 3994258 (1976-11-01), Simm
patent: 4230650 (1980-10-01), Guignard
patent: 4340563 (1982-07-01), Appel et al.
patent: 4536361 (1985-08-01), Torobin
patent: 4589408 (1986-05-01), Singer
patent: 4734227 (1988-03-01), Smith
patent: 4910064 (1990-03-01), Sabee
patent: 4937020 (1990-06-01), Wagner et al.
patent: 5114631 (1992-05-01), Nyssen et al.
patent: 5290626 (1994-03-01), Nishio et al.
patent: 5389121 (1995-02-01), Pfeffer
patent: 5620785 (1997-04-01), Watt et al.
patent: 5643507 (1997-07-01), Berrigan et al.
patent: 5645057 (1997-07-01), Watt et al.
patent: 5645627 (1997-07-01), Lifshutz et al.
patent: 5780153 (1998-07-01), Chou et al.
patent: 5783503 (1998-07-01), Gillespie et al.
patent: 5935883 (1999-08-01), Pike
patent: 6428610 (2002-08-01), Tsai et al.
patent: 6524360 (2003-02-01), Cox et al.
patent: 6547860 (2003-04-01), Buchwald et al.
patent: 6616723 (2003-09-01), Berger
patent: 19544790 (1997-05-01), None
Merriam-Webster's Ninth New Collegiate Dictionary, 1991, p. 733.
Hollingsworth & Vosa Company
Nutter & McClennen & Fish LLP
Pham Minh-Chau T.
LandOfFree
Filter media does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Filter media, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Filter media will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-3449490