Self-spacing pleated filter insert

Details Self-spacing pleated filter insert Self-spacing pleated filter insert

2006-12-19

2006-12-19

Smith, Duane (Department: 1724)

Gas separation

Zigzag, corrugated, or conical

C055S495000, C055S499000, C055S500000, C055S501000, C055S502000, C055S503000, C055S357000, C055SDIG031, C428S181000, C428S182000

Reexamination Certificate

active

07150774

ABSTRACT:
A replaceable, self-spacing, pleated, filter insert that can be easily installed in a reusable filter frame without the aid of a secondary spacing structure includes reversibly collapsible and expandable filter media including a plurality of pleats that expand uniformly when the filter is expanded. When the filter is expanded to the length of the filter frame, the filter is under tension and behaves like a spring, thereby allowing the length of the filter to be readily adjusted to match the length of the frame and allowing the pleats to be aligned with corresponding ribs provided in the frame.

REFERENCES:
patent: 2074294 (1937-03-01), Woodruff
patent: 2907408 (1959-10-01), Engle et al.
patent: 3280984 (1966-10-01), Sexton et al.
patent: 3774377 (1973-11-01), Bishop
patent: 3789589 (1974-02-01), Delany et al.
patent: 3853529 (1974-12-01), Boothe et al.
patent: 4042358 (1977-08-01), Frohmader
patent: 4135900 (1979-01-01), Westlin et al.
patent: 4334899 (1982-06-01), McConnell
patent: 4363643 (1982-12-01), Elbrader et al.
patent: 4547950 (1985-10-01), Thompson
patent: 5051118 (1991-09-01), Andreae
patent: 5066400 (1991-11-01), Rocklitz et al.
patent: 5273564 (1993-12-01), Hill
patent: 5458772 (1995-10-01), Eskes et al.
patent: 5501794 (1996-03-01), Van de Graaf et al.
patent: 5505852 (1996-04-01), van Rossen
patent: 5609761 (1997-03-01), Franz
patent: 5667562 (1997-09-01), Midkiff
patent: 5709735 (1998-01-01), Midkiff et al.
patent: 5743927 (1998-04-01), Osendorf
patent: 5792242 (1998-08-01), Haskett
patent: 5840094 (1998-11-01), Osendorf et al.
patent: 5871836 (1999-02-01), Schultink et al.
patent: 6033453 (2000-03-01), Weddell, III
patent: 6120833 (2000-09-01), LeMaster
patent: 6258143 (2001-07-01), Carawan et al.
patent: 6521011 (2003-02-01), Sundet et al.
patent: 6585793 (2003-07-01), Richerson et al.
patent: 6599343 (2003-07-01), Fredrick et al.
patent: 6740137 (2004-05-01), Kubokawa et al.
patent: 6843820 (2005-01-01), Kubokawa
patent: 6860916 (2005-03-01), Kubokawa et al.

Affiliated with

Also associated with

Rating

Self-spacing pleated filter insert does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Self-spacing pleated filter insert, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Self-spacing pleated filter insert will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-3719836