US4167969A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Transmission cooler
Assignee: Motors Liquidation Co
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Filing: 1977-11-09
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Granted: 1979-09-18
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Expires: 1997-11-09
Abstract
Abstract A compact yet efficient auxiliary transmission oil cooler of simple design and adapted to be installed within the engine coolant hose of a vehicle. The oil cooler consists of two basic parts. The first part is an outer tubular sleeve that serves as a housing and has opposite open ends adapted to be attached at its ends to a radiator hose for passage of coolant through the tube. The second part is the oil passage means to accomplish heat transfer to the coolant and it consists of a tubular member having a plurality of generally parallel runs or passes extending inside the coolant hose.
Inventors
- 👤 Francis H. Ritzenthaler
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 20:01
CPC Classifications
F; F01; F01P; F01P11/00; F01P11/08; F28; F28D; F28D1/00; F28D1/02; F28D1/04; F28D1/0408; F01P11/04; F01P2060/00; F01P2060/04; F01P2060/045; Y; Y10; Y10S; Y10S165/00; Y10S165/916
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
164 words
An oil cooler for vehicles of the type having a liquid cooled engine including a radiator and a coolant hose of elastomeric material between the engine and radiator, comprising: a tubular housing with opposite open ends adapted to be inserted in a leak-resistant manner between intermediate end portions formed in the hose so that engine coolant is required to flow through said tubular housing between the engine and radiator; an elongated heat exchange means including an inlet and outlet portion extending through the wall of said tubular housing for receiving oil from and discharging oil to a remote oil heating means, a mid-portion of said heat exchange means including a plurality of substantially parallel tube passes extending longitudinally through said housing past the open ends thereof and a substantial distance into and along the length of the interior of the coolant hose and between said inlet and outlet portions of the heat exchange means and in direct fluid contact with engine coolant flowing thereby.
Claim 2
Dependent Claim
164 words
An oil cooler for vehicles of the type having a liquid cooled engine including a radiator and a coolant hose of elastomeric material between the engine and radiator, comprising: a tubular housing with opposite open ends adapted to be inserted in a leak-resistant manner between intermediate end portions formed in the hose so that engine coolant is required to flow through said tubular housing between the engine and radiator; an elongated heat exchange means including an inlet and outlet portion extending through the wall of said tubular housing for receiving oil from and discharging oil to a remote oil heating means, a mid-portion of said heat exchange means including a plurality of substantially parallel tube passes extending longitudinally through said housing past the open ends thereof and a substantial distance into and along the length of the interior of the coolant hose and between said inlet and outlet portions of the heat exchange means and in direct fluid contact with engine coolant flowing thereby.
Claim 3
Dependent Claim
207 words
An oil cooler for vehicles of the type having a liquid cooled engine including a radiator and a coolant hose of elastomeric material between the engine and radiator, comprising: a tubular housing with opposite open ends adapted to be connected respectively to portions of the coolant hose extending to the engine and the radiator so as to require engine coolant to pass through said tubular housing; an elongated heat exchange means including an inlet and an outlet portion extending through the wall of said tubular housing for receiving oil from and discharging oil to a remote oil heating means, a mid-portion of said heat exchange means including a plurality of substantially parallel tube passes extending longitudinally through said housing past the open ends thereof and a substantial distance into and along the length of the interior of the coolant hose, one end of one of the tube passes being fluidly connected to said inlet portion and one end of another one of the tube passes being fluidly connected to said outlet with the other ends being fluidly connected in flow relation so as to pass oil between the inlet and outlet while heat is extracted therefrom through the walls of the tube passes by coolant flowing thereover.
Claim 4
Dependent Claim
207 words
An oil cooler for vehicles of the type having a liquid cooled engine including a radiator and a coolant hose of elastomeric material between the engine and radiator, comprising: a tubular housing with opposite open ends adapted to be connected respectively to portions of the coolant hose extending to the engine and the radiator so as to require engine coolant to pass through said tubular housing; an elongated heat exchange means including an inlet and an outlet portion extending through the wall of said tubular housing for receiving oil from and discharging oil to a remote oil heating means, a mid-portion of said heat exchange means including a plurality of substantially parallel tube passes extending longitudinally through said housing past the open ends thereof and a substantial distance into and along the length of the interior of the coolant hose, one end of one of the tube passes being fluidly connected to said inlet portion and one end of another one of the tube passes being fluidly connected to said outlet with the other ends being fluidly connected in flow relation so as to pass oil between the inlet and outlet while heat is extracted therefrom through the walls of the tube passes by coolant flowing thereover.
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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) | 1982-09-17 | 1983-03-19 | 1983-09-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1986-09-17 | 1987-03-19 | 1987-09-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1990-09-17 | 1991-03-19 | 1991-09-18 | $7700.00 | Window Closed / Lapsed |