US5554205A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Air filter for the interior of a motor vehicle
Assignee: Mann and Hummel GmbH
•
Filing: 1994-08-17
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Granted: 1996-09-10
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Expires: 2014-08-17
Abstract
Abstract An air filter, particularly for ventilating the interior of motor vehicles, is provided. The air filter includes a housing having an unfiltered-air inlet and a clean-air outlet, as well as a filter medium folded in an accordion-like shape. The filter medium is arranged in a filter insert which has a surrounding seal. An adapter is integrated in the housing and also includes a surrounding sealing device to provide an effective seal between the unfiltered-air and clean-air sides of the housing. The filter insert is arranged in the adapter and is fixed in position via a cover flap of the housing.
Inventors
- 👤 Volker Ernst
- 👤 Arthur Klotz
- 👤 Rudolf Leipelt
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 15:55
CPC Classifications
B; B01; B01D; B01D46/00; B01D46/52; B01D46/521; B01D46/0002; B01D46/0005; B01D46/10; B60; B60H; B60H3/00; B60H3/06; B60H3/0658; B01D2271/00; B01D2271/02; B60H3/0608; B60H2003/065; Y; Y10; Y10S; Y10S55/00; Y10S55/31
Claims Analysis
Total Claims: 9
Claim 1
Independent Claim
91 words
An air filter for use in ventilating an interior of a motor vehicle, comprising: a housing having an unfiltered-air inlet and a clean-air outlet; a filter insert having a pleated filter medium; and an adapter inserted into said housing and arranged therein, said adapter having a surrounding seal element for providing a seal between said unfiltered-air inlet and said clean-air outlet, said filter insert being removably arranged in said adapter, and said filter insert having a sealing element surrounding said filter insert for providing a seal with respect to said adapter.
Claim 2
Dependent Claim
91 words
An air filter for use in ventilating an interior of a motor vehicle, comprising: a housing having an unfiltered-air inlet and a clean-air outlet; a filter insert having a pleated filter medium; and an adapter inserted into said housing and arranged therein, said adapter having a surrounding seal element for providing a seal between said unfiltered-air inlet and said clean-air outlet, said filter insert being removably arranged in said adapter, and said filter insert having a sealing element surrounding said filter insert for providing a seal with respect to said adapter.
Claim 3
Dependent Claim
19 words
An air filter according to claim 1, further comprising a snap connection for fastening said adapter to said housing.
Claim 4
Dependent Claim
28 words
An air filter according to claim 1, further comprising a cover flap arranged on said housing, said cover flap fixing said filter insert in position in said adapter.
Claim 5
Dependent Claim
32 words
An air filter according to claim 1, wherein said housing and said adapter are made of a thermoplastic material, and further comprising metallic spring clips for clipping said adapter to said housing.
Claim 6
Dependent Claim
34 words
An air filter according to claim 1, wherein said filter element is one of a paper and a nonwoven plastic filter and wherein said sealing element is made of PUR-foam on a polyester base.
Claim 7
Dependent Claim
19 words
An air filter according to claim 1, wherein said adapter includes cross Webs for increasing stability of said adapter.
Claim 8
Dependent Claim
49 words
An air filter according to claim 1, further comprising at least two holding lugs provided on said adapter for fixing one side of said filter element with respect to said adapter, and a cover flap for fixing an opposite side of said filter element with respect to said adapter.
Claim 9
Dependent Claim
32 words
An air filter according to claim 1, wherein said filter element is one of a paper and a nonwoven plastic filter and wherein said sealing element is made of a foam material.
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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) | 1999-09-10 | 2000-03-11 | 2000-09-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2003-09-10 | 2004-03-11 | 2004-09-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2007-09-10 | 2008-03-11 | 2008-09-10 | $7700.00 | Window Closed / Lapsed |