US4461249A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method and apparatus of starting a cold engine
Assignee: Case LLC
•
Filing: 1982-09-28
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Granted: 1984-07-24
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Expires: 2002-09-28
Abstract
Abstract A method for heating intake air and a carburetor of a dead, cold internal combustion engine of a first vehicle which uses an apparatus that heats the cold engine with energy supplied by a second vehicle having a running internal combustion engine. The apparatus is placed within the air filter housing above the carburetor of the cold engine. The apparatus includes a housing configured to be positioned within the air filter housing of the cold engine. The apparatus housing includes a source of heat such as a plurality of fin tubes that are fluidly connected to the cooling system of the running engine. The tubes transfer heat from the heated coolant to air surrounding the fin tubes. In a modified form of the invention, electrical heating wires are used to heat the air. The heated air is then mixed with fuel in the carburetor and used to start the cold engine. In a further preferred embodiment, a fan is also included within the apparatus housing for moving air through the heating elements to increase heat transfer efficiency.
Inventors
- 👤 David S. Majkrzak
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 21:13
CPC Classifications
F; F02; F02N; F02N19/00; F02N19/02; F02N19/04; F02N19/10; F02F; F02F7/00; F02F7/006; F02F2007/0063
Claims Analysis
Total Claims: 13
Claim 1
Independent Claim
96 words
A method for heating a first cold internal combustion engine having an air filter in an air filter housing positioned over a throat of a carburetor with a second internal combustion engine providing energy to a heat transferring device for heating air proximate the carburetor of the cold engine, the method comprising: opening the air filter housing of the first cold engine; removing the air filter from the air filter housing positioning the heat transferring device within the air filter housing; and supplying energy to the heat transferring device to heat the air proximate the carburetor.
Claim 2
Independent Claim
96 words
A method for heating a first cold internal combustion engine having an air filter in an air filter housing positioned over a throat of a carburetor with a second internal combustion engine providing energy to a heat transferring device for heating air proximate the carburetor of the cold engine, the method comprising: opening the air filter housing of the first cold engine; removing the air filter from the air filter housing positioning the heat transferring device within the air filter housing; and supplying energy to the heat transferring device to heat the air proximate the carburetor.
Claim 3
Dependent Claim
22 words
The method of claim 1 and further including: conveying air over the heat transferring device and into the throat of the carburetor.
Claim 4
Dependent Claim
26 words
The method of claim 1 wherein the energy supplied to the heat transferring device is a heated coolant from a cooling system of the running engine.
Claim 5
Dependent Claim
25 words
The method of claim 1 wherein the energy supplied to the heat transferring device is electrical energy from an electrical system from the running engine.
Claim 6
Independent Claim
99 words
An apparatus for heating a first cold internal combustion engine of a first vehicle with a second vehicle having a second internal combustion engine, the first cold engine having an air filter housing positioned over a carburetor, the apparatus comprising: an apparatus housing positionable within the air filter housing of the cold engine; means for transferring heat to air near the carburetor mounted within the housing; and means for supplying energy from the running engine to the means for transferring heat attached to the means for transferring heat such that energy is supplied to the means for transferring heat.
Claim 7
Independent Claim
99 words
An apparatus for heating a first cold internal combustion engine of a first vehicle with a second vehicle having a second internal combustion engine, the first cold engine having an air filter housing positioned over a carburetor, the apparatus comprising: an apparatus housing positionable within the air filter housing of the cold engine; means for transferring heat to air near the carburetor mounted within the housing; and means for supplying energy from the running engine to the means for transferring heat attached to the means for transferring heat such that energy is supplied to the means for transferring heat.
Claim 8
Dependent Claim
44 words
The apparatus of claim 5 and further including: fan means for conveying air through the means for transferring heat mounted within said housing to increase the heat transfer efficiency of the means for transferring heat and provide positive warm air pressure over the carburetor.
Claim 9
Dependent Claim
57 words
The apparatus of claim 5 wherein the means for transferring heat includes a fluid to air heat exchanger positioned within the apparatus housing and wherein the means for supplying energy includes a supply and return conduit for supplying heated coolant from a running engine having a cooling system and for returning the coolant to the running engine.
Claim 10
Dependent Claim
36 words
The apparatus of claim 5 wherein the means for transferring heat is an electrical heating element and wherein the means for supplying energy includes electrical conduit electrically connected to an electrical system of a running engine.
Claim 11
Dependent Claim
42 words
The apparatus of claim 5 wherein the housing includes a first housing section and a second housing section larger in diameter than the first housing section with the first housing section being slightly larger in diameter than the throat of the carburetor.
Claim 12
Dependent Claim
92 words
The apparatus of claim 9 wherein the means for supplying energy from the running engine to the means for transferring heat is positioned along a plane where the first housing section and the second housing section meet and the first housing section and the second housing section being greater in height than a wall of a filter housing so that either the first housing section or the second housing section may be fitted within an air filter housing without the means for supplying energy interfering with the walls of the filter housing.
Claim 13
Dependent Claim
52 words
The apparatus of claim 10 and further including: fan means for conveying air through the means for transferring heat to increase the heat transfer efficiency of the means for transferring heat and provided position warm air pressure over the carburetor and including a switch for reversing the rotation of the fan means.
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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) | 1987-07-24 | 1988-01-23 | 1988-07-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1991-07-24 | 1992-01-23 | 1992-07-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1995-07-24 | 1996-01-23 | 1996-07-24 | $7700.00 | Window Closed / Lapsed |