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US3824980A Expired / Lapsed US ⏱️ 0.0 years remaining

Vehicle internal combustion engine lubricating oil cooling and filtering circulation system

Assignee: Individual
•
Filing: 1972-11-13
•
Granted: 1974-07-23
•
Expires: 1992-11-13
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Abstract

Abstract A system including a calibrated oil measuring tube which partially extends into the oil crank case. An oil cooling heat exchanger is provided and means connects the calibrating tube to the heat exchanger. A pump circulates oil from the crank case via the calibrating tube through the heat exchanger to the oil fill tube. An oil filter filters the oil discharged from the pump prior to the same being transferred to the oil fill tube.

Inventors

  • 👤 J Hollins

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-10-25 23:26
CPC Classifications
F; F23; F23Q; F23Q3/00; F23Q3/002; F01; F01M; F01M5/00; F01M5/002; F16; F16N; F16N39/00

Claims Analysis

Total Claims: 3
Claim 1
Independent Claim 197 words
A vehicle combustion engine lubricating oil circulation system comprising a vehicle internal combustion engine, an oil crank case, said internal combustion engine including an engine block and an engine cooling fan, a passageway extending through said engine block to said oil crank case, an oil calibrating tube extending through said passageway and to said oil crank case, said oil calibrating tube having a hollow interior through which oil can flow, an oil cooling radiator, said oil cooling radiator being located in the motor vehicle engine compartment and slightly to the rear of the engine cooling fan, a first conduit means communicating said oil calibrating tube to said oil cooling radiator, an oil pump, a second conduit means communicating said oil radiator to said oil pump, an oil fill tube, a third conduit means communicating said oil pump to said oil fill tube, oil filtering means being located in said oil fill tube, a friction drive wheel, said oil pump rotatable with said friction drive wheel, a belt driven accessory and means for keeping said friction wheel in contact with said belt driven accessory whereby said belt driven accessory rotates said friction wheel thereby driving said oil pump.
Claim 2
Dependent Claim 197 words
A vehicle combustion engine lubricating oil circulation system comprising a vehicle internal combustion engine, an oil crank case, said internal combustion engine including an engine block and an engine cooling fan, a passageway extending through said engine block to said oil crank case, an oil calibrating tube extending through said passageway and to said oil crank case, said oil calibrating tube having a hollow interior through which oil can flow, an oil cooling radiator, said oil cooling radiator being located in the motor vehicle engine compartment and slightly to the rear of the engine cooling fan, a first conduit means communicating said oil calibrating tube to said oil cooling radiator, an oil pump, a second conduit means communicating said oil radiator to said oil pump, an oil fill tube, a third conduit means communicating said oil pump to said oil fill tube, oil filtering means being located in said oil fill tube, a friction drive wheel, said oil pump rotatable with said friction drive wheel, a belt driven accessory and means for keeping said friction wheel in contact with said belt driven accessory whereby said belt driven accessory rotates said friction wheel thereby driving said oil pump.
Claim 3
Dependent Claim 46 words
A vehicle combustion engine lubricating oil circulating system according to claim 1 wherein said oil radiator comprises a flow tube, said flow tube in communication with said first conduit means and with said second conduit means and a plurality of fins attached to said flow tube.

References Cited (Backward Citations)

US1096550A Cited
US1369803A Cited
US1420837A Cited
US2192543A Cited
US2261098A Cited
US2893514A Cited
US3339739A Cited
US3550725A Cited

USPTO Annuity & Maintenance Windows

Annuity Stage Window Opens Payment Deadline Surcharge Period Until Estimated Fee Status
3.5 Years (Year 4) 1977-07-22 1978-01-21 1978-07-23 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1981-07-22 1982-01-21 1982-07-23 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 1985-07-22 1986-01-21 1986-07-23 $7700.00 Window Closed / Lapsed

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