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US7435278B2
Expired / Lapsed
US
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Deep filter element suitable for replacing a shallow filter element and having a support frame made from thin stock
Assignee: Ademco Inc
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Filing: 2006-06-22
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Granted: 2008-10-14
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Expires: 2026-06-22
Abstract
Abstract A deep format filter element has a peripheral frame with outwardly protruding mounting flanges. The mounting flanges simulate the periphery of a shallow format filter element to allow the deep format filter element to replace the shallow format filter element in many situations.
Inventors
- 👤 Brad A. Terlson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 18:07
CPC Classifications
B; B01; B01D; B01D46/00; B01D46/52; B01D46/521; B01D46/0002; B01D46/0005; B01D46/10; B01D2271/00; B01D2271/02; Y; Y10; Y10S; Y10S55/00; Y10S55/05; Y10S55/31
Claims Analysis
Total Claims: 32
Claim 1
Independent Claim
208 words
A filter assembly, comprising: a filter medium having first and second opposite faces, through which air to be filtered can pass, the first and second opposite faces being separated by a distance; and a frame including two or more opposing side faces to provide support to the filter medium, each of the two or more opposing side faces having a length perpendicular to the distance between the first and second opposite faces, the frame including a first sheet that includes a first portion that extends along a majority of the length of one of the two or more opposing side faces and a second portion that extends along at least part of the first opposite face and a second sheet that includes a first portion that also extends along a majority of the length of the one of the two or more opposing side faces and a second portion that extends along at least part of the first opposite face, wherein at least part of the second portion of the first sheet that extends along at least part of the first opposite face is secured to at least part of the second portion of the second sheet that extends along at least part of the first opposite face.
Claim 2
Dependent Claim
208 words
A filter assembly, comprising: a filter medium having first and second opposite faces, through which air to be filtered can pass, the first and second opposite faces being separated by a distance; and a frame including two or more opposing side faces to provide support to the filter medium, each of the two or more opposing side faces having a length perpendicular to the distance between the first and second opposite faces, the frame including a first sheet that includes a first portion that extends along a majority of the length of one of the two or more opposing side faces and a second portion that extends along at least part of the first opposite face and a second sheet that includes a first portion that also extends along a majority of the length of the one of the two or more opposing side faces and a second portion that extends along at least part of the first opposite face, wherein at least part of the second portion of the first sheet that extends along at least part of the first opposite face is secured to at least part of the second portion of the second sheet that extends along at least part of the first opposite face.
Claim 3
Dependent Claim
35 words
The filter assembly of claim 1 wherein the first sheet also extends along at least one of the side faces for at least a majority of the distance between the first and second opposite faces.
Claim 4
Dependent Claim
50 words
The filter assembly of claim 2 wherein the second sheet also extends along at least one of the side faces for at least a majority of the distance between the first and second opposite faces, and is secured to the first sheet along at least one of the side faces.
Claim 5
Dependent Claim
26 words
The filter assembly of claim 3 wherein the second sheet also includes a portion that extends down along at least part of the second opposite face.
Claim 6
Dependent Claim
27 words
The filter assembly of claim 4 wherein the first sheet does not include a portion that extends down along at least part of the second opposite face.
Claim 7
Dependent Claim
53 words
The filter assembly of claim 1 further including a flange that extends in a direction laterally away from the filter medium and around at least a portion of the perimeter of the first opposing face, wherein the flange includes a portion that extends down along at least part of the first opposite face.
Claim 8
Dependent Claim
171 words
A filter assembly, comprising: a filter medium having first and second opposite faces, through which air to be filtered can pass, the first and second opposite faces being separated by a distance; and a frame including two or more opposing side faces to provide support to the filter medium, each of the two or more opposing side faces having a length perpendicular to the distance between the first and second opposite faces, the frame including a first sheet that extends along at least a majority of the length of a first side face of the two or more opposing side faces for at least a majority of the distance between the first and second opposite faces, and a second sheet that extends along at least a majority of the length the first side face for at least a majority of the distance between the first and second opposite faces, wherein the second sheet overlaps and is secured to the first sheet along at least a portion of the first side face.
Claim 9
Dependent Claim
171 words
A filter assembly, comprising: a filter medium having first and second opposite faces, through which air to be filtered can pass, the first and second opposite faces being separated by a distance; and a frame including two or more opposing side faces to provide support to the filter medium, each of the two or more opposing side faces having a length perpendicular to the distance between the first and second opposite faces, the frame including a first sheet that extends along at least a majority of the length of a first side face of the two or more opposing side faces for at least a majority of the distance between the first and second opposite faces, and a second sheet that extends along at least a majority of the length the first side face for at least a majority of the distance between the first and second opposite faces, wherein the second sheet overlaps and is secured to the first sheet along at least a portion of the first side face.
Claim 10
Dependent Claim
25 words
The filter assembly of claim 7 wherein the first sheet includes a portion that extends down along at least part of the first opposite face.
Claim 11
Dependent Claim
26 words
The filter assembly of claim 8 wherein the second sheet includes a portion that also extends down along at least part of the first opposite face.
Claim 12
Dependent Claim
54 words
The filter assembly of claim 9 wherein at least part of the portion of the first sheet that extends down along at least part of the first opposite face is secured to at least part of the portion of the second sheet that extends down along at least part of the first opposite face.
Claim 13
Dependent Claim
25 words
The filter assembly of claim 9 wherein the second sheet includes a portion that extends down along at least part of the second opposite face.
Claim 14
Dependent Claim
27 words
The filter assembly of claim 11 wherein the first sheet does not include a portion that extends down along at least part of the second opposite face.
Claim 15
Dependent Claim
32 words
The filter assembly of claim 7 wherein the first sheet is situated between the second sheet and the filter medium along at least part of at least one of the side faces.
Claim 16
Dependent Claim
53 words
The filter assembly of claim 7 further including a flange that extends in a direction laterally away from the filter medium and around at least a portion of the perimeter of the first opposite face, wherein the flange includes a portion that extends down along at least part of the first opposite face.
Claim 17
Dependent Claim
17 words
The filter assembly of claim 14 wherein the second sheet forms at least part of the flange.
Claim 18
Dependent Claim
182 words
A filter assembly, comprising: a filter medium having first and second opposite faces, through which air to be filtered can pass, the first and second opposite faces being separated by a distance; a first cardboard sheet that extends along at least a first side face of the filter medium for at least a majority of the distance between the first and second opposite faces; a second cardboard sheet that extends along at least the first side face of the filter medium for at least a majority of the distance between the first and second opposite faces, the first cardboard sheet overlapping the second cardboard sheet for a majority of the length of the first side face, and the first cardboard sheet secured to the second cardboard sheet along at least part of said one or more side faces; and a flange that extends in a direction laterally away from the filter medium and around at least a portion of the perimeter of the first opposing face, the flange having at least two inside folds that define at least part of a cavity.
Claim 19
Dependent Claim
182 words
A filter assembly, comprising: a filter medium having first and second opposite faces, through which air to be filtered can pass, the first and second opposite faces being separated by a distance; a first cardboard sheet that extends along at least a first side face of the filter medium for at least a majority of the distance between the first and second opposite faces; a second cardboard sheet that extends along at least the first side face of the filter medium for at least a majority of the distance between the first and second opposite faces, the first cardboard sheet overlapping the second cardboard sheet for a majority of the length of the first side face, and the first cardboard sheet secured to the second cardboard sheet along at least part of said one or more side faces; and a flange that extends in a direction laterally away from the filter medium and around at least a portion of the perimeter of the first opposing face, the flange having at least two inside folds that define at least part of a cavity.
Claim 20
Dependent Claim
41 words
The filter assembly of claim 16 wherein at least one of the first cardboard sheet and second cardboard sheet extends the full or substantially the full distance from the first opposite face to the second opposite face of the filter medium.
Claim 21
Dependent Claim
40 words
The filter assembly of claim 16 , wherein the first cardboard sheet and the second cardboard sheet overlap one another over a majority of the distance between the first and second opposite faces to provide support to the filter medium.
Claim 22
Dependent Claim
23 words
The filter assembly of claim 16 wherein the first cardboard sheet extends down and along at least part of the first opposite face.
Claim 23
Dependent Claim
23 words
The filter assembly of claim 19 wherein the second cardboard sheet extends down and along at least part of the first opposite face.
Claim 24
Dependent Claim
23 words
The filter assembly of claim 19 wherein the second cardboard sheet extends down and along at least part of the second opposite face.
Claim 25
Dependent Claim
24 words
The filter assembly of claim 16 wherein the flange includes a portion that extends down along at least part of the first opposite face.
Claim 26
Dependent Claim
18 words
The filter assembly of claim 22 wherein the second cardboard sheet forms at least part of the flange.
Claim 27
Dependent Claim
271 words
A filter assembly, comprising: a filter medium having first and second opposite faces, through which air to be filtered can pass, and a number of side faces that extend between the first and second opposite faces, the first and second opposite faces being separated by a distance; a frame extending along one or more of the side faces to provide support to the filter medium, the frame including a first sheet that includes a portion that extends down along at least part of the first opposing face and a second sheet that includes a portion that also extends down along at least part of the first opposing face, wherein at least part of the portion of the first sheet that extends down along at least part of the first opposing face is secured to at least part of the portion of the second sheet that extends down along at least part of the first opposing face; wherein the first sheet also extends along at least one of the side faces for at least a majority of the distance between the first and second opposite faces; wherein the second sheet also extends along at least one of the side faces for at least a majority of the distance between the first and second opposite faces, and is secured to the first sheet along at least one of the side faces; wherein the second sheet also includes a portion that extends down along at least part of the second opposing face; and wherein the first sheet does not include a portion that extends down along at least part of the second opposing face.
Claim 28
Dependent Claim
271 words
A filter assembly, comprising: a filter medium having first and second opposite faces, through which air to be filtered can pass, and a number of side faces that extend between the first and second opposite faces, the first and second opposite faces being separated by a distance; a frame extending along one or more of the side faces to provide support to the filter medium, the frame including a first sheet that includes a portion that extends down along at least part of the first opposing face and a second sheet that includes a portion that also extends down along at least part of the first opposing face, wherein at least part of the portion of the first sheet that extends down along at least part of the first opposing face is secured to at least part of the portion of the second sheet that extends down along at least part of the first opposing face; wherein the first sheet also extends along at least one of the side faces for at least a majority of the distance between the first and second opposite faces; wherein the second sheet also extends along at least one of the side faces for at least a majority of the distance between the first and second opposite faces, and is secured to the first sheet along at least one of the side faces; wherein the second sheet also includes a portion that extends down along at least part of the second opposing face; and wherein the first sheet does not include a portion that extends down along at least part of the second opposing face.
Claim 29
Dependent Claim
32 words
The filter assembly of claim 24 wherein the first sheet is situated between the second sheet and the filter medium along at least part of at least one of the side faces.
Claim 30
Dependent Claim
202 words
A filter assembly, comprising: a filter medium having first and second opposite faces, through which air to be filtered can pass, and a number of side faces that extend between the first and second opposite faces, the first and second opposite faces being separated by a distance; a frame extending along one or more of the side faces to provide support to the filter medium, the frame including a first sheet that includes a portion that extends down along at least part of the first opposing face and a second sheet that includes a portion that also extends down along at least part of the first opposing face, wherein at least part of the portion of the first sheet that extends down along at least part of the first opposing face is secured to at least part of the portion of the second sheet that extends down along at least part of the first opposing face; and a flange that extends in a direction laterally away from the filter medium and around at least a portion of the perimeter of the first opposing face, wherein the flange includes a portion that extends down along at least part of the first opposite face.
Claim 31
Dependent Claim
202 words
A filter assembly, comprising: a filter medium having first and second opposite faces, through which air to be filtered can pass, and a number of side faces that extend between the first and second opposite faces, the first and second opposite faces being separated by a distance; a frame extending along one or more of the side faces to provide support to the filter medium, the frame including a first sheet that includes a portion that extends down along at least part of the first opposing face and a second sheet that includes a portion that also extends down along at least part of the first opposing face, wherein at least part of the portion of the first sheet that extends down along at least part of the first opposing face is secured to at least part of the portion of the second sheet that extends down along at least part of the first opposing face; and a flange that extends in a direction laterally away from the filter medium and around at least a portion of the perimeter of the first opposing face, wherein the flange includes a portion that extends down along at least part of the first opposite face.
Claim 32
Dependent Claim
17 words
The filter assembly of claim 26 wherein the second sheet forms at least part of the flange.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 2011-10-14 | 2012-04-14 | 2012-10-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2015-10-14 | 2016-04-14 | 2016-10-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2019-10-14 | 2020-04-14 | 2020-10-14 | $7700.00 | Window Closed / Lapsed |