US4122820A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Engine cover and air cleaner support
Assignee: Caterpillar Inc
•
Filing: 1977-06-02
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Granted: 1978-10-31
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Expires: 1997-06-02
Abstract
Abstract A cover is provided for an engine which has first and second spaced-apart portions and an air cleaner. The cover has a middle portion, first and second opposed side portions, and first and second opposed end portions. The side and end portions are connected to the engine and form a chamber defined by the engine portions and the cover. The air cleaner is mounted on the middle portion of the cover.
Inventors
- 👤 John G. Ryberg
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 14:06
CPC Classifications
F; F02; F02M; F02M35/00; F02M35/02; F02M35/04; F02B; F02B75/00; F02B75/16; F02B75/18; F02B75/22; F02B77/00; F02B3/00; F02B3/06
Claims Analysis
Total Claims: 9
Claim 1
Independent Claim
143 words
In an engine having first and second opposed end portions, and first and second spaced-apart side portions having a general "V" profile, the improvement comprising: a cover having a first side portion sealably connected to the first engine side portion, a second side portion sealably connected to the second engine side portion, a first end portion sealably connected to the first engine end portion, a second end portion sealably connected to the second engine end portion, and a middle portion extending between the side and end portions of the cover; a chamber defined by said engine and said cover and having an opening on the middle portion of the cover; and an air cleaner mounted on the middle portion of the cover over the chamber opening and forming an air passageway substantially free of obstructions to the first and second engine side portions.
Claim 2
Dependent Claim
143 words
In an engine having first and second opposed end portions, and first and second spaced-apart side portions having a general "V" profile, the improvement comprising: a cover having a first side portion sealably connected to the first engine side portion, a second side portion sealably connected to the second engine side portion, a first end portion sealably connected to the first engine end portion, a second end portion sealably connected to the second engine end portion, and a middle portion extending between the side and end portions of the cover; a chamber defined by said engine and said cover and having an opening on the middle portion of the cover; and an air cleaner mounted on the middle portion of the cover over the chamber opening and forming an air passageway substantially free of obstructions to the first and second engine side portions.
Claim 3
Dependent Claim
58 words
An apparatus, as set forth in claim 1, wherein said air cleaner includes a housing and a filter element, and wherein said middle portion includes a recessed portion and a ridge, said filter element being seated in said recessed portion, said housing being sealably mounted on said ridge and forming an annulus between said housing and filter element.
Claim 4
Dependent Claim
19 words
An apparatus, as set forth in claim 2, wherein said filter element has a greater height than said housing.
Claim 5
Dependent Claim
16 words
An apparatus, as set forth in claim 1, wherein said cover is constructed of acoustic material.
Claim 6
Dependent Claim
21 words
An apparatus, as set forth in claim 1, wherein said cover is constructed of alternate layers of acoustic material and metal.
Claim 7
Dependent Claim
25 words
An apparatus, as set forth in claim 1, including a sealing material positioned between said engine and cover and forming a hermetic sealing gasket therebetween.
Claim 8
Dependent Claim
16 words
An apparatus, as set forth in claim 6, wherein said sealing material is an elastomeric material.
Claim 9
Dependent Claim
34 words
An apparatus, as set forth in claim 6, including a fuel pump having a plurality of fuel lines and being connected to said first and second engine side portions and positioned within said chamber.
References Cited (Backward Citations)
US2963009A
Cited
US2871842A
Cited
US2869526A
Cited
US3534828A
Cited
US3521726A
Cited
US3783845A
Cited
US3949726A
Cited
US3990419A
Cited
US4011849A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1981-10-30 | 1982-05-01 | 1982-10-31 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1985-10-30 | 1986-05-01 | 1986-10-31 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1989-10-30 | 1990-05-01 | 1990-10-31 | $7700.00 | Window Closed / Lapsed |