US4768423A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Vehicle charcoal air filter assembly
Assignee: Individual
•
Filing: 1987-06-03
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Granted: 1988-09-06
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Expires: 2007-06-03
Abstract
Abstract An improved air filtering device for use with motor vehicles includes a carbon bed filter removably mountable within the vehicle cowl air inlet adjacent the bottom of the vehicle windshield. Provision is made for quickly securing the replaceable filter pack in numerous forms of cowl inlets.
Inventors
- 👤 Glen D. Boeger
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 21:26
CPC Classifications
B; B60; B60H; B60H3/00; B60H3/06; B60H3/0608; B60H3/0641; B60H2003/065
Claims Analysis
Total Claims: 3
Claim 1
Independent Claim
129 words
In an air filter assembly for a motor vehicle having a substantially horizontally disposed cowl member provided with an air inlet opening therethrough, the improvement wherein; said cowl member includes a depressed area having a lowermost inturned peripheral shoulder defining said air inlet opening, a preformed inlet filter top assembly removably insertable within said depressed area and supportable upon said peripheral shoulder, said filter top assembly defining a peripheral configuration mating with that of said depressed area, said filter top assembly including a carbon bed filter pack, a screen element enveloped about said filter pack, imperforate sections extending from opposite ends of said screen-enveloped filter pack, whereby said filter pack, screen element and imperforate sections comprises an integral assembly removably insertable within said depressed area as a single unit.
Claim 2
Dependent Claim
129 words
In an air filter assembly for a motor vehicle having a substantially horizontally disposed cowl member provided with an air inlet opening therethrough, the improvement wherein; said cowl member includes a depressed area having a lowermost inturned peripheral shoulder defining said air inlet opening, a preformed inlet filter top assembly removably insertable within said depressed area and supportable upon said peripheral shoulder, said filter top assembly defining a peripheral configuration mating with that of said depressed area, said filter top assembly including a carbon bed filter pack, a screen element enveloped about said filter pack, imperforate sections extending from opposite ends of said screen-enveloped filter pack, whereby said filter pack, screen element and imperforate sections comprises an integral assembly removably insertable within said depressed area as a single unit.
Claim 3
Dependent Claim
22 words
An air filter assembly as described in claim 1, wherein said air inlet extends substantially the width of said vehicle cowl member.
References Cited (Backward Citations)
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Cited
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US3870495A
Cited
US3941034A
Cited
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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) | 1991-09-06 | 1992-03-07 | 1992-09-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1995-09-06 | 1996-03-07 | 1996-09-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1999-09-06 | 2000-03-07 | 2000-09-06 | $7700.00 | Window Closed / Lapsed |