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US3797507A Expired / Lapsed US ⏱️ 0.0 years remaining

Apparatus for cleaning engines

Assignee: Individual
•
Filing: 1971-09-30
•
Granted: 1974-03-19
•
Expires: 1991-09-30
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Abstract

Abstract An apparatus for cleaning automobile engines or the like wherein solvent is forced into the lubrication system of the engine and drained through the bottom of the oil drain pan. Following the forcing of a fluid solvent through the engine a vaporized solvent is then used to reach portions not penetratable by liquids. The fluid and vapor are alternated until the engine is clean at which time oil is forced into the entire engine. The oil is introduced by the same apparatus used for cleaning and assures the introduction of lubrication to all parts when the engine is again started.

Inventors

  • 👤 K Jackson

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-10-27 15:57
CPC Classifications
F; F02; F02B; F02B77/00; F02B77/04

Claims Analysis

Total Claims: 4
Claim 1
Independent Claim 216 words
Mechanism for use in cleaning the interior of an internal combustion engine comprising; a portable tank comprising a pressure resistant shell of a tested capacity greater than the projected maximum usage, a relatively large sealable port at its upper portion adapted to receive fluid to be introduced to the engine, an air inlet port in its upper section adapted to sealingly receive an air transmission hose and an outlet portion at the lowermost portion of the tank, a fluid transmission tee having one leg secured to the bottom of the tank and in communication with the interior of the tank, a fluid transmission line adapted to be interconnected with a source of air under pressure and a control valve means, said control valve means functionally connected to the line adapted to transmit fluid under pressure from a source and adapted to direct air under pressure either into the tank or through a second leg of the tee at the bottom of the tank, fluid delivery means secured to the third leg of the tee and adapted to be interconnected with the oil circUlation system of the engine to be cleaned whereby liquid held within the tank may be injected into the engine in either a liquid or vapor form by appropriate settings of the control valve.
Claim 2
Dependent Claim 216 words
Mechanism for use in cleaning the interior of an internal combustion engine comprising; a portable tank comprising a pressure resistant shell of a tested capacity greater than the projected maximum usage, a relatively large sealable port at its upper portion adapted to receive fluid to be introduced to the engine, an air inlet port in its upper section adapted to sealingly receive an air transmission hose and an outlet portion at the lowermost portion of the tank, a fluid transmission tee having one leg secured to the bottom of the tank and in communication with the interior of the tank, a fluid transmission line adapted to be interconnected with a source of air under pressure and a control valve means, said control valve means functionally connected to the line adapted to transmit fluid under pressure from a source and adapted to direct air under pressure either into the tank or through a second leg of the tee at the bottom of the tank, fluid delivery means secured to the third leg of the tee and adapted to be interconnected with the oil circUlation system of the engine to be cleaned whereby liquid held within the tank may be injected into the engine in either a liquid or vapor form by appropriate settings of the control valve.
Claim 3
Dependent Claim 27 words
Mechanism as in claim 1 wherein the tank includes a handle for ease of transportation said handle serving also as a mounting place for the control valve.
Claim 4
Dependent Claim 19 words
Mechanism as in claim 1 wherein the tank includes supporting means to retain the tee spacedly from the ground.

References Cited (Backward Citations)

US1887985A Cited
US2076262A Cited
US2213480A Cited
US2525978A Cited
US2632719A Cited
US2626623A Cited
US2651887A Cited
US2912990A Cited
US3431145A Cited

USPTO Annuity & Maintenance Windows

Annuity Stage Window Opens Payment Deadline Surcharge Period Until Estimated Fee Status
3.5 Years (Year 4) 1977-03-18 1977-09-17 1978-03-19 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1981-03-18 1981-09-17 1982-03-19 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 1985-03-18 1985-09-17 1986-03-19 $7700.00 Window Closed / Lapsed

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