Patent US5278968A successfully refreshed from Google Patents.
US6152980A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Size adjustable filter element
Assignee: Bonded Filter Co
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Filing: 1999-03-15
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Granted: 2000-11-28
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Expires: 2019-03-15
Abstract
Abstract The present invention 10 discloses an air filter element 18 that is partially fabricated on site wherein one or more wire frames 28 are fastened to one another using a high tensile strength adhesive tape 34 to form a structure substantially conforming to the dimensions of the original equipment manufacturers' filter housings 20. The filter media 18 is attached to the rigid wire frame 28 by selectively drawing pleats 24 around a portion of a wire member 28 and securing the pleats to each other by means of epoxy coated staples 36 thereby securing the filter media 18 to the wire frame 28. Whereupon the on-site partially fabricated filter element 18 can be inserted into the channels 30 of the appropriate original equipment manufacturers filter housing 20 wherein the skirt 38 of the on-site fabricated filter element will fill and conform to the filter housing channel 30 providing an air-seal thus forcing all airflow through the air filter 18.
Inventors
- 👤 C William Culwell
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 23:56
CPC Classifications
B; B01; B01D; B01D46/00; B01D46/10; B01D46/0002; B01D46/0005; B01D46/52; B01D46/521; B01D2265/00; B01D2265/04; B01D2275/00; B01D2275/20; B01D2275/203; B01D2279/00; B01D2279/50
Claims Analysis
Total Claims: 15
Claim 1
Independent Claim
116 words
An apparatus for air conditioning filter, comprising: a) a filter media; b) a housing within which said filter media is placed; c) wire mesh positioned on one side of said filter media; d) a frame comprising frame members upon which said filter media and said wire mesh are attached; e) first means for attaching said wire mesh to said filter media; f) means for fastening said filter media to said frame whereby an air conditioning filter is provided for an air conditioner; and g) said means for fastening said filter media to said frame further comprising pleats of said filter media drawn around said frame members and secured to each other by said means for fastening.
Claim 2
Independent Claim
116 words
An apparatus for air conditioning filter, comprising: a) a filter media; b) a housing within which said filter media is placed; c) wire mesh positioned on one side of said filter media; d) a frame comprising frame members upon which said filter media and said wire mesh are attached; e) first means for attaching said wire mesh to said filter media; f) means for fastening said filter media to said frame whereby an air conditioning filter is provided for an air conditioner; and g) said means for fastening said filter media to said frame further comprising pleats of said filter media drawn around said frame members and secured to each other by said means for fastening.
Claim 3
Dependent Claim
17 words
The apparatus of claim 1, said filter media further comprising a pleated area and a non-pleated area.
Claim 4
Dependent Claim
17 words
The apparatus of claim 1, said housing further comprising channels within which said filter media is placed.
Claim 5
Dependent Claim
19 words
The apparatus of claim 1, wherein said wire mesh is positioned on the rear side of said filter media.
Claim 6
Dependent Claim
10 words
The apparatus of claim 1, said frame further comprises metal.
Claim 7
Dependent Claim
10 words
The apparatus of claim 1, said frame further comprises plastic.
Claim 8
Dependent Claim
21 words
The apparatus of claim 1, said plurality of frame members further comprises means for fastening said frame members to each other.
Claim 9
Dependent Claim
21 words
The apparatus of claim 7, said means for fastening further comprises adhesive tape for fastening said frame members to each other.
Claim 10
Dependent Claim
12 words
The apparatus of claim 1, said means for fastening further comprises staples.
Claim 11
Dependent Claim
16 words
The apparatus of claim 9, wherein said staples are epoxy coated whereby said staples resist rusting.
Claim 12
Dependent Claim
45 words
The apparatus of claim 1, said filter media further comprising a skirt extending beyond said wire mesh on the top edge and bottom edge of said filter media, said housing further comprising channels, said skirt of said filter media being slidably positioned in said channels.
Claim 13
Dependent Claim
20 words
The apparatus of claim 1, said first means for attaching said wire mesh to said filter media further comprises bonding.
Claim 14
Dependent Claim
14 words
The apparatus of claim 1, said filter media further comprises natural and synthetic fibers.
Claim 15
Dependent Claim
13 words
The apparatus of claim 11, said frame being slidably positioned in said channels.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 2003-11-28 | 2004-05-29 | 2004-11-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2007-11-28 | 2008-05-29 | 2008-11-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2011-11-28 | 2012-05-29 | 2012-11-28 | $7700.00 | Window Closed / Lapsed |