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US4847468A Expired / Lapsed US ⏱️ 0.0 years remaining

Automotive pre-heater

Assignee: Individual
•
Filing: 1987-08-19
•
Granted: 1989-07-11
•
Expires: 2007-08-19
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Abstract

Abstract An automotive pre-heater is set forth for use in cold climates for warming the interior and selective portions of an automobile prior to starting and operation. A compact housing secured by conventional bracketry to the interior of an automobile is provided. Fan means operated by a programmable timing element provide warmth to the interior of an automobile. Optional heating outlets are provided to further enable pre-warming of selected automobile portions such as the carburetor, battery, and engine block. A windshield defrosting conduit is provided to enable windshield defrosting. The pre-heater is powered electrically from a power source external of the automobile.

Inventors

  • 👤 Glen Hufstetler

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-11-01 03:58
CPC Classifications
B; B60; B60H; B60H1/00; B60H1/0025; B60H1/00264; B60H1/00271; F; F02; F02F; F02F7/00; F02F7/006; F02F2007/0063

Claims Analysis

Total Claims: 4
Claim 1
Independent Claim 197 words
An automotive pre-heater assembly for heating an automobile interior and plural automotive component parts, in an automobile having a passenger chamber with a front seat, comprising, in combination: an electrical power supply means external of an automobile to be serviced; a timing member in series with the electrical power supply means to programmably enable electrical association between said external power supply means, a blower assembly and a heating element; a heating element in series with the timing member; a blower assembly in series with the timing member and associated with the heating element to deliver heated air to a heat chamber; a heat chamber carried in the passenger chamber forwardly of the front seat and having adjustably positionable deflecting means, dividing said heat chamber into a first portion for directing heated air therein to the passenger chamber of an automobile and a second portion for directing heated air therein to the automotive windshield and at least one second component of an automobile, said deflecting means allowing adjustment of relative amounts of heated air passing to each heat chamber portion; and means for attaching electrically operated auxiliary heating devices to provide power thereto, independently of said timing member.
Claim 2
Dependent Claim 197 words
An automotive pre-heater assembly for heating an automobile interior and plural automotive component parts, in an automobile having a passenger chamber with a front seat, comprising, in combination: an electrical power supply means external of an automobile to be serviced; a timing member in series with the electrical power supply means to programmably enable electrical association between said external power supply means, a blower assembly and a heating element; a heating element in series with the timing member; a blower assembly in series with the timing member and associated with the heating element to deliver heated air to a heat chamber; a heat chamber carried in the passenger chamber forwardly of the front seat and having adjustably positionable deflecting means, dividing said heat chamber into a first portion for directing heated air therein to the passenger chamber of an automobile and a second portion for directing heated air therein to the automotive windshield and at least one second component of an automobile, said deflecting means allowing adjustment of relative amounts of heated air passing to each heat chamber portion; and means for attaching electrically operated auxiliary heating devices to provide power thereto, independently of said timing member.
Claim 3
Dependent Claim 34 words
An automotive pre-heater assembly as set forth in claim 1 further including a second heat transport conduit communicating from the second portion of the heat chamber to direct heated air to an automotive carburetor.
Claim 4
Dependent Claim 34 words
An automotive pre-heater assembly as set forth in claim 1 further including a second heat transport conduit communicating from the second portion of the heat chamber to direct heated air to an automotive battery.

References Cited (Backward Citations)

US2067102A Cited
US2654826A Cited
US2717305A Cited
US2819373A Cited
US3313915A Cited
US3213994A Cited
US3673379A Cited
US3870855A Cited
US4034204A Cited
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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) 1992-07-10 1993-01-09 1993-07-11 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1996-07-10 1997-01-09 1997-07-11 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 2000-07-10 2001-01-09 2001-07-11 $7700.00 Window Closed / Lapsed

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