US4699639A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Air-intake, moisture-eliminator duct apparatus
Assignee: Donaldson Co Inc
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Filing: 1986-07-16
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Granted: 1987-10-13
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Expires: 2006-07-16
Abstract
Abstract The present invention is directed to a unitary member formed to fit in the engine compartment of a vehicle and to function to both direct ram air toward the air cleaner and to eliminate moisture from that air. The unitary member includes an intemediate portion between inlet and outlet portions. The intermediate portion has a moisture elimination section with a drain opening.
Inventors
- 👤 Steven S. Gieseke
- 👤 Donald F. Engel
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 15:10
CPC Classifications
B; B01; B01D; B01D45/00; F; F02; F02M; F02M35/00; F02M35/02; F02M35/022
Claims Analysis
Total Claims: 3
Claim 1
Independent Claim
170 words
An air-intake apparatus for a vehicle having an engine and an air cleaner for supplying cleaned air to the engine, comprising: a unitary member formed as a continuous wall having a rectangular inlet portion and a cylindrical outlet portion, said inlet and outlet portions having inlet and outlet centerlines nearly at right angles with respect to one another, said unitary member including an intermediate portion wherein said rectangular inlet portion mates with said cylindrical outlet portion, said intermediate portion including a free form section and a moisture elimination section, said moisture elimination section having a drain opening with a centerline having direction generally similar to said outlet centerline, said continuous wall of said unitary member formed so that all lines parallel to said inlet centerline and passing through said inlet opening intersect said wall without passing through said outlet opening, said member reducing in cross-section as it proceeds from said inlet opening to said free form section to direct intake air and to begin separating moisture from the intake air.
Claim 2
Dependent Claim
170 words
An air-intake apparatus for a vehicle having an engine and an air cleaner for supplying cleaned air to the engine, comprising: a unitary member formed as a continuous wall having a rectangular inlet portion and a cylindrical outlet portion, said inlet and outlet portions having inlet and outlet centerlines nearly at right angles with respect to one another, said unitary member including an intermediate portion wherein said rectangular inlet portion mates with said cylindrical outlet portion, said intermediate portion including a free form section and a moisture elimination section, said moisture elimination section having a drain opening with a centerline having direction generally similar to said outlet centerline, said continuous wall of said unitary member formed so that all lines parallel to said inlet centerline and passing through said inlet opening intersect said wall without passing through said outlet opening, said member reducing in cross-section as it proceeds from said inlet opening to said free form section to direct intake air and to begin separating moisture from the intake air.
Claim 3
Dependent Claim
93 words
Apparatus in accordance with claim 1 wherein said moisture elimination section and said inlet and intermediate portions include a common portion of said continuous wall, said common portion being along a first plane, said moisture elimination section further including a second portion of said wall along a second plane inclined with respect to said first plane, said moisture elimination section also having connecting portions between said common and second portions to form a trough for directing moisture to said drain opening, said drain opening being at a lowermost location in said connecting portions.
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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) | 1990-10-12 | 1991-04-13 | 1991-10-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1994-10-12 | 1995-04-13 | 1995-10-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1998-10-12 | 1999-04-13 | 1999-10-13 | $7700.00 | Window Closed / Lapsed |