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US3960131A Expired / Lapsed US ⏱️ 0.0 years remaining

Internal combustion engine starting system

Assignee: GRACE M DAVIS
•
Filing: 1974-11-29
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Granted: 1976-06-01
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Expires: 1994-11-29
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Abstract

Abstract A starting system for use with an internal combustion engine is shown utilizing a container of compressed volatile fluid to be injected into the engine upon starting. The fluid is delivered from the container through the actuation of a solenoid that subsequently provides a metered quantity of the fluid to the engine. The solenoid is connected in electrical series with the engine starting switch, a timing switch, and a thermostatic switch. Operation of the starting switch results in the opening and closing of the timer switch to alternately break and complete the series circuit; the thermostatic switch is normally closed and is opened to break the series circuit when the engine temperature reaches a predetermined value.

Inventors

  • 👤 Bill G. Davis

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-10-31 03:59
CPC Classifications
F; F02; F02N; F02N19/00; F02N19/001

Claims Analysis

Total Claims: 2
Claim 1
Independent Claim 279 words
In an electrically actuated series connected starting system for a water jacket encased internal combustion engine having a starter switch connected to a battery, the improvement comprising in combination: a. a container for storing a volatile starting fluid under pressure; b. an electrically actuatable discharge means connected to said container for discharging the starting fluid from said container, said discharge means including an electrically actuated solenoid means for metering a predetermined quantity of the fluid upon electrical energization of said discharge means and for discharging the predetermined quantity of the starting fluid upon electrical de-energization of said discharge means; c. conduit means extending from said discharge means to the engine for transmitting the discharged predetermined quantity of the starting fluid from said discharge means to the engine; d. a timing switch electrically connected in series between the starter switch and said discharge means for periodically electrically energizing said discharge means, said timing switch including a current limiting heating element connected in parallel with a normally open bimetallic relay responsive to said heating element for periodically establishing a short circuit across said heating element; e. a normally closed thermostatic switch mounted adjacent the water jacket of the engine for sensing the ambient temperature of the engine, said thermostatic switch being actuated in response to a predetermined ambient temperature of the engine; f. electrical conductor means for electrically connecting said thermostatic switch to said discharge means; and g. further electrical conductor means for electrically connecting said thermostatic switch to the battery; whereby, the starting fluid is continually periodically discharged into the engine until either the starting switch is turned off or until the engine reaches an ambient temperature, whichever occurs first.
Claim 2
Dependent Claim 279 words
In an electrically actuated series connected starting system for a water jacket encased internal combustion engine having a starter switch connected to a battery, the improvement comprising in combination: a. a container for storing a volatile starting fluid under pressure; b. an electrically actuatable discharge means connected to said container for discharging the starting fluid from said container, said discharge means including an electrically actuated solenoid means for metering a predetermined quantity of the fluid upon electrical energization of said discharge means and for discharging the predetermined quantity of the starting fluid upon electrical de-energization of said discharge means; c. conduit means extending from said discharge means to the engine for transmitting the discharged predetermined quantity of the starting fluid from said discharge means to the engine; d. a timing switch electrically connected in series between the starter switch and said discharge means for periodically electrically energizing said discharge means, said timing switch including a current limiting heating element connected in parallel with a normally open bimetallic relay responsive to said heating element for periodically establishing a short circuit across said heating element; e. a normally closed thermostatic switch mounted adjacent the water jacket of the engine for sensing the ambient temperature of the engine, said thermostatic switch being actuated in response to a predetermined ambient temperature of the engine; f. electrical conductor means for electrically connecting said thermostatic switch to said discharge means; and g. further electrical conductor means for electrically connecting said thermostatic switch to the battery; whereby, the starting fluid is continually periodically discharged into the engine until either the starting switch is turned off or until the engine reaches an ambient temperature, whichever occurs first.

References Cited (Backward Citations)

US3189014A Cited
US3198404A Cited
US3338227A Cited
US3297011A Cited
US3416507A Cited
US3448733A Cited
US3704702A Cited
US3827417A Cited

USPTO Annuity & Maintenance Windows

Annuity Stage Window Opens Payment Deadline Surcharge Period Until Estimated Fee Status
3.5 Years (Year 4) 1979-06-01 1979-12-01 1980-06-01 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1983-06-01 1983-12-01 1984-06-01 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 1987-06-01 1987-12-01 1988-06-01 $7700.00 Window Closed / Lapsed

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