US3876904A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Light switch control
Assignee: Boeing North American Inc
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Filing: 1974-01-28
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Granted: 1975-04-08
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Expires: 1994-01-28
Abstract
Abstract A circuit for causing the headlights of a vehicle to be turned on when a vehicle with the parking lights turned on is put in motion.
Inventors
- 👤 Jr G Donald Weber
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 17:26
CPC Classifications
B; B60; B60Q; B60Q1/00; B60Q1/02; B60Q1/04; B60Q1/14; B60Q1/1415; B60Q1/1423; B60Q1/143; B60Q2300/00; B60Q2300/10; B60Q2300/11; B60Q2300/116
Claims Analysis
Total Claims: 5
Claim 1
Independent Claim
219 words
In combination with a vehicle having at least two sets of lights, source means, first and second light means, switch means for selectively connecting said source means to one of said light means, control means coupled to said switch means to control the operation thereof, and condition responsive means connected to said control means to selectively cause operation of said control means, said condition responsive means including motion detector means for detecting motion of said vehicle and producing a signal indicative thereof, logic means having first and second input terminals and an output terminal, said first input terminal connected to said motion detector means, said second input terminal connected to said one of said first and second light means, said output terminal connected to said control device, said logic means arranged to produce a signal representative of the signals supplied thereto by said motion detector means and said one of said first and second light means, said control means arranged to produce an output representative of the signal produced by said logic means whereby the condition of said switch means is controlled so that the other one of said light means is selectively connected to said source means only when said vehicle is in motion and said switch means is connected to said one of said light means concurrently.
Claim 2
Dependent Claim
219 words
In combination with a vehicle having at least two sets of lights, source means, first and second light means, switch means for selectively connecting said source means to one of said light means, control means coupled to said switch means to control the operation thereof, and condition responsive means connected to said control means to selectively cause operation of said control means, said condition responsive means including motion detector means for detecting motion of said vehicle and producing a signal indicative thereof, logic means having first and second input terminals and an output terminal, said first input terminal connected to said motion detector means, said second input terminal connected to said one of said first and second light means, said output terminal connected to said control device, said logic means arranged to produce a signal representative of the signals supplied thereto by said motion detector means and said one of said first and second light means, said control means arranged to produce an output representative of the signal produced by said logic means whereby the condition of said switch means is controlled so that the other one of said light means is selectively connected to said source means only when said vehicle is in motion and said switch means is connected to said one of said light means concurrently.
Claim 3
Dependent Claim
13 words
The combination recited in claim 1 wherein said source means comprises a battery.
Claim 4
Dependent Claim
14 words
The combination recited in claim 1 wherein said logic means comprises an AND gate.
Claim 5
Dependent Claim
34 words
The combination recited in claim 1 wherein said first light means comprises the headlight system, said second light means comprises the parking light system, and said one light means is said second light means.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1978-04-07 | 1978-10-07 | 1979-04-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1982-04-07 | 1982-10-07 | 1983-04-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1986-04-07 | 1986-10-07 | 1987-04-08 | $7700.00 | Window Closed / Lapsed |