US3774152A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Speed controlled taillight system for a vehicle
Assignee: Individual
•
Filing: 1971-11-01
•
Granted: 1973-11-20
•
Expires: 1991-11-01
Abstract
Abstract A pair of groups of taillights for a vehicle for indicating to the driver of a following vehicle the condition of driving operation of the vehicle equipped with the groups of taillights. The lights of each group are of different colors and a switching arrangement, including speed responsive control switch means and brake operated switch means, are utilized to provide color combinations and color changes to indicate driving conditions of the vehicle, to the following driver.
Inventors
- 👤 J Tandy
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 02:28
CPC Classifications
G; G01; G01P; G01P1/00; G01P1/07; G01P1/08; G01P1/10; B; B60; B60Q; B60Q1/00; B60Q1/26; B60Q1/44; B60Q1/444
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
251 words
A speed controlled taillight system for a vehicle, said system comprising; first, second and third lamp means each of a different color; said first lamp means including a lamp having a pair of filaments; vehicle wheel speed responsive control switch means; a brake operated switch; a manually operated ignition control switch; a source of electrical potential; and circuit means including: a. first circuitry comprising one of the filaments of said first lamp means, speed responsive control switch means, ignition control switch, and said source, for illuminating said first lamp means when the vehicle is at rest or the wheels thereof are rotating forwardly up to a predetermined low speed; b. second circuitry including said second lamp means, ignition switch, and said source, for illuminating said second lamp means; c. third circuitry including said third lamp means, brake operated switch and said source, for illuminating said third lamp means responsive to energization of the vehicle brake; d. said speed responsive control switch means being responsive to deceleration of the vehicle to said predetermined low speed to close the circuit through said first lamp means so that said first and third lamp means are illuminated during braking of the vehicle at and below said predetermined low speed; e. and fourth circuitry including said source, a manually operated lamp switch, and the other filament of said pair in said first lamp means, for illuminating said first lamp means independently of said others of the lamp means and independently of the others of said circuits.
Claim 2
Dependent Claim
251 words
A speed controlled taillight system for a vehicle, said system comprising; first, second and third lamp means each of a different color; said first lamp means including a lamp having a pair of filaments; vehicle wheel speed responsive control switch means; a brake operated switch; a manually operated ignition control switch; a source of electrical potential; and circuit means including: a. first circuitry comprising one of the filaments of said first lamp means, speed responsive control switch means, ignition control switch, and said source, for illuminating said first lamp means when the vehicle is at rest or the wheels thereof are rotating forwardly up to a predetermined low speed; b. second circuitry including said second lamp means, ignition switch, and said source, for illuminating said second lamp means; c. third circuitry including said third lamp means, brake operated switch and said source, for illuminating said third lamp means responsive to energization of the vehicle brake; d. said speed responsive control switch means being responsive to deceleration of the vehicle to said predetermined low speed to close the circuit through said first lamp means so that said first and third lamp means are illuminated during braking of the vehicle at and below said predetermined low speed; e. and fourth circuitry including said source, a manually operated lamp switch, and the other filament of said pair in said first lamp means, for illuminating said first lamp means independently of said others of the lamp means and independently of the others of said circuits.
Claim 3
Dependent Claim
44 words
The system defined in claim 1 in which said second circuitry comprises a circuit including said source, ignition switch, and second lamp means only, for illuminating said second lamp means independently of the others of said lamp means and independently of vehicle wheel speeds.
Claim 4
Dependent Claim
47 words
The system defined in claim 1 in which said second circuitry comprises a circuit including said source, ignition switch, second lamp means, and a second speed responsive control switch means, for illuminating said second lamp means respOnsive to increase of vehicle wheel speeds above said predetermined speed.
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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) | 1976-11-19 | 1977-05-21 | 1977-11-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-11-19 | 1981-05-21 | 1981-11-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-11-19 | 1985-05-21 | 1985-11-20 | $7700.00 | Window Closed / Lapsed |