US3775640A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Motor vehicle exterior light system control circuit
Assignee: Motors Liquidation Co
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Filing: 1972-10-10
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Granted: 1973-11-27
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Expires: 1992-10-10
Abstract
Abstract A motor vehicle exterior light system control circuit wherein the ungrounded terminal of the vehicle battery is connected to the input terminal of an ignition switch of the type operable to respective positions in which the input terminal is electrically connected to an accessory circuit and an exterior light system circuit output terminals, to an auxiliary circuit output terminal, to only the exterior light system circuit output terminal and to an ignition circuit and the exterior light system circuit output terminals. The exterior light system circuit output terminal of the ignition switch is connected to the input terminal of a conventional headlamp switch of the type operable to positions in which the input terminal is electrically connected to output terminals to which one side of the filaments of the exterior lighting system electrical lamps may be connected. To provide an override feature, the auxiliary circuit output terminal of the ignition switch may be connected to the input terminal of the headlamp switch through a conventional single pole-single throw electrical switch.
Inventors
- 👤 J English
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 04:04
CPC Classifications
B; B60; B60Q; B60Q9/00; B60Q9/001
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
207 words
A motor vehicle exterior light system control circuit comprising, a headlamp switch having an input terminal and an output terminal to which one side of the filaments of said vehicle headlamps may be connected and an electrically conductive movable contact means which may be operated to a position in which said input terminal is electrically connected thereby to said output terminal, an ignition switch having an input terminal to which one terminal of the vehicle battery may be connected, respective accessory circuit, ignition circuit, headlamp circuit and auxiliary circuit output terminals and electrically conductive movable contact means which may be operated to respective positions in which said input terminal is electrically connected thereby to said accessory and headlamp circuit output terminals, to said auxiliary circuit output terminal, to only said headlamp circuit output terminal and to said ignition and headlamp circuit output terminals, means for connecting said headlamp circuit output terminal of said ignition switch to said input terminal of said headlamp switch, an electrical switch having two contacts selectively operable to the electrical circuit closed and open conditions, and means for connecting said auxiliary circuit output terminal of said ignition switch to said input terminal of said headlamp switch through said contacts of said electrical switch.
Claim 2
Dependent Claim
207 words
A motor vehicle exterior light system control circuit comprising, a headlamp switch having an input terminal and an output terminal to which one side of the filaments of said vehicle headlamps may be connected and an electrically conductive movable contact means which may be operated to a position in which said input terminal is electrically connected thereby to said output terminal, an ignition switch having an input terminal to which one terminal of the vehicle battery may be connected, respective accessory circuit, ignition circuit, headlamp circuit and auxiliary circuit output terminals and electrically conductive movable contact means which may be operated to respective positions in which said input terminal is electrically connected thereby to said accessory and headlamp circuit output terminals, to said auxiliary circuit output terminal, to only said headlamp circuit output terminal and to said ignition and headlamp circuit output terminals, means for connecting said headlamp circuit output terminal of said ignition switch to said input terminal of said headlamp switch, an electrical switch having two contacts selectively operable to the electrical circuit closed and open conditions, and means for connecting said auxiliary circuit output terminal of said ignition switch to said input terminal of said headlamp switch through said contacts of said electrical switch.
Claim 3
Dependent Claim
307 words
In a motor vehicle having a steering column and a gear selector operating mechanism operable to a ''''Park'''' position, an exterior light system control circuit comprising: a headlamp switch having an input terminal and an output terminal to which one side of the filaments of said vehicle headlamps may be connected and an electrically conductive movable contact means which may be operated to a position in which said input terminal is electrically connected thereby to said output terminal; an ignition switch having an input terminal to which one terminal of the vehicle battery may be connected, accessory circuit, ignition circuit, headlamp circuit and auxiliary circuit output terminals and electrically conductive movable contact means which may be operated to an ''''Accessory'''' position in which said input terminal is electrically connected thereby to said accessory and headlamp circuit output terminals, to an ''''Off-Lock'''' position in which said input terminal is electrically connected thereby to said auxiliary circuit output terminal, to an ''''Off'''' position in which said input terminal is electrically connected thereby to only said headlamp circuit output terminal and to a ''''Run'''' position in which said input terminal is electrically connected thereby to said ignition and headlamp circuit output terminals, said ignition switch being mounted upon said steering column and interlocked with said gear selector operating mechanism in such a manner that it can be operated to the said ''''Off-Lock'''' position only when said gear selector mechanism has been operated to said ''''Park'''' position; means for connecting said headlamp circuit output terminal of said ignition switch to said input terminal of said headlamp switch, an electrical switch having two contacts selectively operable to the electrical circuit closed and open conditions, and means for connecting said auxiliary circuit output terminal of said ignition switch to said input terminal of said headlamp switch through said contacts of said electrical switch.
Claim 4
Dependent Claim
307 words
In a motor vehicle having a steering column and a gear selector operating mechanism operable to a ''''Park'''' position, an exterior light system control circuit comprising: a headlamp switch having an input terminal and an output terminal to which one side of the filaments of said vehicle headlamps may be connected and an electrically conductive movable contact means which may be operated to a position in which said input terminal is electrically connected thereby to said output terminal; an ignition switch having an input terminal to which one terminal of the vehicle battery may be connected, accessory circuit, ignition circuit, headlamp circuit and auxiliary circuit output terminals and electrically conductive movable contact means which may be operated to an ''''Accessory'''' position in which said input terminal is electrically connected thereby to said accessory and headlamp circuit output terminals, to an ''''Off-Lock'''' position in which said input terminal is electrically connected thereby to said auxiliary circuit output terminal, to an ''''Off'''' position in which said input terminal is electrically connected thereby to only said headlamp circuit output terminal and to a ''''Run'''' position in which said input terminal is electrically connected thereby to said ignition and headlamp circuit output terminals, said ignition switch being mounted upon said steering column and interlocked with said gear selector operating mechanism in such a manner that it can be operated to the said ''''Off-Lock'''' position only when said gear selector mechanism has been operated to said ''''Park'''' position; means for connecting said headlamp circuit output terminal of said ignition switch to said input terminal of said headlamp switch, an electrical switch having two contacts selectively operable to the electrical circuit closed and open conditions, and means for connecting said auxiliary circuit output terminal of said ignition switch to said input terminal of said headlamp switch through said contacts of said electrical switch.
References Cited (Backward Citations)
US3500120A
Cited
US3686506A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1976-11-26 | 1977-05-28 | 1977-11-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-11-26 | 1981-05-28 | 1981-11-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-11-26 | 1985-05-28 | 1985-11-27 | $7700.00 | Window Closed / Lapsed |