Air filter retaining system

Gas separation – Combined or convertible – In environmental air enclosure

Reexamination Certificate

Rate now

  [ 0.00 ] – not rated yet Voters 0   Comments 0

Details

C055S484000, C055S502000, C055S355000, C055S473000, C055S483000, C055S490000, C055S493000, C055SDIG031, C055S495000, C055S496000, C055S482000, C055S485000, C454S187000, C210S339000, C210S495000

Reexamination Certificate

active

07128771

ABSTRACT:
A filter retaining system formed from multiple filter retaining frames is disclosed. Each of the frames is formed from either a female type extrusion or a combination of male and female type extrusions. Specifically, each frame has either a tongue or a groove which is engageable into a corresponding groove or tongue of an adjacent frame. The tongue and groove engagement provides added rigidity to the retaining system, as well as preventing air from bypassing the filters retained within each frame.

REFERENCES:
patent: 3986850 (1976-10-01), Wilcox
patent: 4671811 (1987-06-01), Cadwell et al.
patent: 4946484 (1990-08-01), Monson et al.
patent: 5059218 (1991-10-01), Pick
patent: 5192348 (1993-03-01), Ludwig
patent: 5314516 (1994-05-01), Kashima
patent: 5476526 (1995-12-01), Attermeyer
patent: 5613759 (1997-03-01), Ludwig et al.
patent: 6387140 (2002-05-01), Choi
patent: 6497739 (2002-12-01), McGill
patent: 6511522 (2003-01-01), Gomez et al.
patent: 6916352 (2005-07-01), Sutton et al.
“Universal Holding Frame For Built-Up Filter Banks”,Farr Company, 1991.
“Holding Frame Adapters For Single and Multi-Stage Filters”,Farr Company, 1991.
“Hi-Track Filter Holding System”,Cambridge Filter Corp., 1990.
“4NS Holding Frame”,Cambridge Filter Corp., date unknown.
“Installation Instructions Magna-Frame Assembly Hepa Filter”,Farr Company, Sep. 10, 1984.
“Magna-Frame Assembly Hepa Filter”,Farr Company, Aug. 27, 1984.
“Holding Frame Assy Type 8&8 HP”,Farr Company, Apr. 30, 1990.

LandOfFree

Say what you really think

Search LandOfFree.com for the USA inventors and patents. Rate them and share your experience with other people.

Rating

Air filter retaining system does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Air filter retaining system, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Air filter retaining system will most certainly appreciate the feedback.

Rate now

     

Profile ID: LFUS-PAI-O-3638218

  Search
All data on this website is collected from public sources. Our data reflects the most accurate information available at the time of publication.