Patent EP0079196A1 successfully refreshed from Google Patents.
Patent US6228152B1 successfully refreshed from Google Patents.
US6228152B1
Expired / Lapsed
US
⏱️ 0.0 years remaining
Filtering device for equipping a ventilation and/or heating and/or air conditioning unit, more particularly for a motor vehicle
Assignee: Valeo SE
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Filing: 1998-12-22
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Granted: 2001-05-08
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Expires: 2018-12-22
Abstract
Abstract A filter device has a frame, a grid, a filter medium and, if desired, a gas adsorption medium. The frame is flexible so as to be temporarily deformable and is made of polypropylene, as is the grid. The filter medium is a mat of non-woven material and the gas adsorption medium is activated carbon.
Inventors
- 👤 Richard Guérin
- 👤 Gérard Jacq
- 👤 Claude Navarro
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 13:57
CPC Classifications
B; B01; B01D; B01D53/00; B01D53/02; B01D53/04; B01D53/0407; B01D53/0415; B01D46/00; B01D46/10; B60; B60H; B60H3/00; B60H3/06; B60H3/0658; B01D2253/00; B01D2253/10; B01D2253/102; B01D2253/30; B01D2253/302; B01D2253/304; B01D2259/00; B01D2259/45; B01D2259/4566; B60H2003/0691
Claims Analysis
Total Claims: 40
Claim 1
Independent Claim
50 words
A filter for a climate control apparatus comprising a frame, a first grid, and a filter medium, wherein the frame and the first grid are flexible such that the filter is able to be temporarily deformed in all directions while being inserted in or removed from said climate control apparatus.
Claim 2
Dependent Claim
50 words
A filter for a climate control apparatus comprising a frame, a first grid, and a filter medium, wherein the frame and the first grid are flexible such that the filter is able to be temporarily deformed in all directions while being inserted in or removed from said climate control apparatus.
Claim 3
Dependent Claim
15 words
A filter according to claim 1 , wherein the first grid is made of polypropylene.
Claim 4
Dependent Claim
11 words
A filter according to claim 1 wherein the frame is polypropylene.
Claim 5
Dependent Claim
14 words
A filter according to claim 1 , wherein the frame is a foam material.
Claim 6
Dependent Claim
19 words
A filter according to claim 1 , wherein the filter medium comprises a mat of non-woven carded web material.
Claim 7
Dependent Claim
28 words
a filter according to claim 5 , wherein said mat of non-woven carded web material is applied against the first grid without being fixed to the first grid.
Claim 8
Dependent Claim
15 words
a filter according to claim 6 , wherein said mat constitutes a single fabric layer.
Claim 9
Dependent Claim
48 words
a filter according to claim 7 , wherein said climate control apparatus has a normal direction of flow of gas to be filtered and wherein said mat is placed upstream of the first grid in relation to the normal direction of flow of the gas to be filtered.
Claim 10
Dependent Claim
28 words
A filter according to claim 5 , wherein the mat of non-woven carded web material is based on long fibres having a length greater than about 38 mm.
Claim 11
Dependent Claim
22 words
A filter according to claim 9 , wherein the long fibres have a mean diameter which is substantially at least 10 μm.
Claim 12
Dependent Claim
14 words
A filter according to claim 10 , wherein the long fibres are polypropylene fibres.
Claim 13
Dependent Claim
14 words
a filter according to claim 9 , wherein the long fibres are thermoplastic material.
Claim 14
Dependent Claim
23 words
A filter according to claim 1 , which further comprises a gas adsorption member placed between the first grid and the filter medium.
Claim 15
Dependent Claim
16 words
A filter according to claim 13 , wherein the adsorption member comprises an activated carbon tissue.
Claim 16
Dependent Claim
14 words
A filter according to claim 14 , wherein the activated carbon tissue is flexible.
Claim 17
Dependent Claim
18 words
A filter according to claim 14 , wherein the first grid and the activated carbon tissue are pleated.
Claim 18
Dependent Claim
62 words
A filter according to claim 14 , wherein at least one dimension of the activated carbon tissue is smaller than a corresponding dimension of the first grid and a corresponding dimension of the frame so that on at least one side of the activated carbon tissue, the activated carbon tissue is at least partially spaced away from a side of the frame.
Claim 19
Dependent Claim
17 words
A filter according to claim 13 , wherein said adsorption member comprises a bed of activated carbon.
Claim 20
Dependent Claim
23 words
A filter according to claim 13 , which further comprises a second filter medium disposed between the first grid and said adsorption member.
Claim 21
Dependent Claim
11 words
A climate control apparatus including the filter of claim 19 .
Claim 22
Dependent Claim
18 words
A filter according to claim 13 , wherein a second grid is disposed upstream of the filter medium.
Claim 23
Dependent Claim
20 words
a filter according to claim 21 , wherein said first grid and said second grid are of the same nature.
Claim 24
Dependent Claim
23 words
A filter according to claim 21 , wherein the frame is fixed to the first grid and the second grid by mirror welding.
Claim 25
Dependent Claim
14 words
A filter according to claim 21 , which is of symmetrical construction, and reversible.
Claim 26
Dependent Claim
19 words
A filter according to claim 1 , wherein the frame is fixed to the first grid by mirror welding.
Claim 27
Dependent Claim
32 words
A filter according to claim 25 , wherein at least one lateral end of the first grid is curved in such a way as to follow a corresponding wall of the frame.
Claim 28
Dependent Claim
16 words
A filter according to claim 1 , wherein the frame is moulded over the first grid.
Claim 29
Dependent Claim
16 words
a filter according to claim 27 , wherein the frame is moulded over the filter medium.
Claim 30
Dependent Claim
77 words
A filter device for a climate control apparatus having a normal flow direction for gas that is to be filtered therein, said filter comprising: a frame, said frame flexible and temporarily deformable; a first grid, said first grid flexible and temporarily deformable; and a first filter medium comprising a single-fabric-layer mat of non-woven carded web material, said first filter medium positioned adjacent said first grid, said first grid and said first filter medium held within said frame.
Claim 31
Dependent Claim
77 words
A filter device for a climate control apparatus having a normal flow direction for gas that is to be filtered therein, said filter comprising: a frame, said frame flexible and temporarily deformable; a first grid, said first grid flexible and temporarily deformable; and a first filter medium comprising a single-fabric-layer mat of non-woven carded web material, said first filter medium positioned adjacent said first grid, said first grid and said first filter medium held within said frame.
Claim 32
Dependent Claim
22 words
The filter device according to claim 29 wherein said first grid and said frame are made of polypropylene or a foam material.
Claim 33
Dependent Claim
38 words
The filter device according to claim 29 further comprising a gas adsorber positioned between said first grid and said first filter medium, said gas adsorber comprising a flexible activated carbon tissue or a flexible bed of activated carbon.
Claim 34
Dependent Claim
57 words
The filter device according to claim 31 wherein said first filter medium is positioned upstream of said first grid in relation to said normal flow direction, the filter device further comprising a second filter medium comprising a single-fabric-layer mat of non-woven carded web material, said second filter medium positioned between said gas adsorber and said first grid.
Claim 35
Dependent Claim
22 words
The filter device according to claim 32 further comprising a second grid, said second grid positioned upstream of said first filter medium.
Claim 36
Dependent Claim
28 words
The filter device according to claim 33 wherein said first grid, said second filter medium, said gas adsorber, said first filter medium and said second grid are pleated.
Claim 37
Dependent Claim
57 words
The filter device according to claim 29 wherein at least one dimension of said first filter medium is smaller than a corresponding dimension of said first grid and a corresponding dimension of said frame so that at least one side of said first filter medium is at least partially spaced from a side wall of said frame.
Claim 38
Dependent Claim
34 words
The filter device according to claim 29 wherein said first filter medium is comprised of thermoplastic fibres having a length greater than about 38 mm and a mean diameter substantially at least 10 μm.
Claim 39
Dependent Claim
19 words
The filter device according to claim 29 wherein said frame is fixed to said first grid via mirror welding.
Claim 40
Dependent Claim
29 words
The filter device according to claim 29 wherein a lateral end of said first grid is curved to correspond to the contour of a side wall of said frame.
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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) | 2004-05-07 | 2004-11-06 | 2005-05-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2008-05-07 | 2008-11-06 | 2009-05-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2012-05-07 | 2012-11-06 | 2013-05-08 | $7700.00 | Window Closed / Lapsed |