US3653464A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Engine oil pan
Assignee: Motors Liquidation Co
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Filing: 1970-04-13
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Granted: 1972-04-04
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Expires: 1990-04-13
Abstract
Abstract An oil pan assembly for the combustion engine in a motor vehicle in which an oil pan of suitable configuration for the engine is provided with a separate cover baffle member which encloses all but the rear portion of the oil pan so that oil will be retained within the pan during normal motor vehicle operation and will also be retained therein when the motor vehicle is shipped in a nose-down position in a railroad car.
Inventors
- 👤 Eudell G Jacobsen
- 👤 David A Martens
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 00:59
CPC Classifications
F; F01; F01M; F01M11/00; F01M11/06; F01M11/062; F01M11/065; F01M11/0004; F01M2011/0037; F01M2011/0041
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
122 words
An oil pan assembly for an internal combustion engine comprising an oil pan having a front wall, rear wall, side walls with flange means projecting therefrom and a stepped bottom wall providing an oil sump, a baffle cover having an outer flange corresponding to said flange means whereby said baffle cover and said oil pan are secured to the engine to form a retainer for oil with said oil sump positioned toward the back of the engine, said baffle cover having a narrow transverse opening at one end thereof positioned over said oil sump, said baffle cover including a central longitudinally extending trough-like depression and on opposite sides thereof longitudinally extending drain channels terminating at the front edge of said transverse opening.
Claim 2
Dependent Claim
122 words
An oil pan assembly for an internal combustion engine comprising an oil pan having a front wall, rear wall, side walls with flange means projecting therefrom and a stepped bottom wall providing an oil sump, a baffle cover having an outer flange corresponding to said flange means whereby said baffle cover and said oil pan are secured to the engine to form a retainer for oil with said oil sump positioned toward the back of the engine, said baffle cover having a narrow transverse opening at one end thereof positioned over said oil sump, said baffle cover including a central longitudinally extending trough-like depression and on opposite sides thereof longitudinally extending drain channels terminating at the front edge of said transverse opening.
Claim 3
Dependent Claim
152 words
An oil pan assembly for an internal combustion engine including an oil pan having wall means and a stepped bottom panel to form therein a lower sump chamber and having a peripheral flange integral with said wall means, a baffle member having a peripheral flange corresponding to said flange of said oil pan, said baffle being provided with a narrow laterally extending pierced opening at one end thereof and having a central longitudinally extending trough-like depression and on opposite sides thereof longitudinally extending drain channels, all of which terminate at the edge of said pierced opening, said baffle and said oil pan being adapted to be secured to the internal combustion engine with said sump chamber and said pierced opening at the rear of the engine to provide an oil pan structure adapted to retain oil therein during normal engine operation and when the engine is shipped in a front end-down position.
Claim 4
Dependent Claim
152 words
An oil pan assembly for an internal combustion engine including an oil pan having wall means and a stepped bottom panel to form therein a lower sump chamber and having a peripheral flange integral with said wall means, a baffle member having a peripheral flange corresponding to said flange of said oil pan, said baffle being provided with a narrow laterally extending pierced opening at one end thereof and having a central longitudinally extending trough-like depression and on opposite sides thereof longitudinally extending drain channels, all of which terminate at the edge of said pierced opening, said baffle and said oil pan being adapted to be secured to the internal combustion engine with said sump chamber and said pierced opening at the rear of the engine to provide an oil pan structure adapted to retain oil therein during normal engine operation and when the engine is shipped in a front end-down position.
Claim 5
Dependent Claim
137 words
An oil pan assembly for an internal combustion engine, said oil pan assembly including an oil pan having side walls, front wall, rear wall and a stepped bottom panel defining an oil reservoir including a sump chamber, one wall of which is formed by said rear wall, baffle means secured to said oil pan in spaced relation to said stepped bottom panel to form with said stepped bottom panel, said side walls and said front wall an oil reservoir for the engine when the engine is positioned nose-down, said baffle means including a drain opening therein adjacent said rear wall and over said sump chamber, and a central longitudinally extending trough-like depression and on opposite sides thereof longitudinally extending drain channels terminating at the front edge of said drain opening which extends transversely across said baffle means.
Claim 6
Dependent Claim
137 words
An oil pan assembly for an internal combustion engine, said oil pan assembly including an oil pan having side walls, front wall, rear wall and a stepped bottom panel defining an oil reservoir including a sump chamber, one wall of which is formed by said rear wall, baffle means secured to said oil pan in spaced relation to said stepped bottom panel to form with said stepped bottom panel, said side walls and said front wall an oil reservoir for the engine when the engine is positioned nose-down, said baffle means including a drain opening therein adjacent said rear wall and over said sump chamber, and a central longitudinally extending trough-like depression and on opposite sides thereof longitudinally extending drain channels terminating at the front edge of said drain opening which extends transversely across said baffle means.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1975-04-04 | 1975-10-04 | 1976-04-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-04-04 | 1979-10-04 | 1980-04-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-04-04 | 1983-10-04 | 1984-04-04 | $7700.00 | Window Closed / Lapsed |