US3878508A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Combined turn signal and hazard warning signaling system for a vehicle
Assignee: Tokai Rika Co Ltd
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Filing: 1972-12-20
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Granted: 1975-04-15
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Expires: 1992-12-20
Abstract
Abstract An automatic cancelling system for a hazard warning signaling device for a vehicle, in which an electric circuit for actuating the hazard warning signaling device to effect simultaneous flashing operation of both the left-hand and right-hand direction signaling lamps is closed, only when the vehicle is parked, by means of a switch which is connected in the circuit in series and closed upon the parking of the vehicle.
Inventors
- 👤 Masaru Suzuki
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 03:57
CPC Classifications
B; B60; B60Q; B60Q1/00; B60Q1/26; B60Q1/46
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
226 words
A combined turn signal and hazard warning signaling system for a vehicle comprising normally inactive left-hand and right-hand signaling lamps, a turning signal circuit having a first flasher, first switch means for selectively coupling said first flasher in series with either of the two signal lamps to indicate a left-hand or a right-hand turn of the vehicle, when said first flasher is energized, and an ignition switch for selectively connecting said first flasher in series with an electric power source to be energized thereby, and a separate hazard-warning circuit connectable directly to said power source in parallel with said turning signal circuit and comprising a second flasher, a single-throw, double-pole switch connected in series with said second flasher and operable selectively to connect both said lamps simultaneously to said second flasher for operation thereby when said second flasher is energized, a motion-sensing switch connected directly to said power source and to said second flasher, which closes automatically when the vehicle is parked and opens when the vehicle is in motion, whereby said motion-sensing switch operates to connect said second flasher in circuit with said power source for energization thereby, wHen the vehicle is parked, to effect flashing of both said lamps simultaneously, and is operative automatically to break the connection of said second flasher and said lamps to said power source when the vehicle is running.
Claim 2
Dependent Claim
226 words
A combined turn signal and hazard warning signaling system for a vehicle comprising normally inactive left-hand and right-hand signaling lamps, a turning signal circuit having a first flasher, first switch means for selectively coupling said first flasher in series with either of the two signal lamps to indicate a left-hand or a right-hand turn of the vehicle, when said first flasher is energized, and an ignition switch for selectively connecting said first flasher in series with an electric power source to be energized thereby, and a separate hazard-warning circuit connectable directly to said power source in parallel with said turning signal circuit and comprising a second flasher, a single-throw, double-pole switch connected in series with said second flasher and operable selectively to connect both said lamps simultaneously to said second flasher for operation thereby when said second flasher is energized, a motion-sensing switch connected directly to said power source and to said second flasher, which closes automatically when the vehicle is parked and opens when the vehicle is in motion, whereby said motion-sensing switch operates to connect said second flasher in circuit with said power source for energization thereby, wHen the vehicle is parked, to effect flashing of both said lamps simultaneously, and is operative automatically to break the connection of said second flasher and said lamps to said power source when the vehicle is running.
Claim 3
Dependent Claim
47 words
A combined turn signal and hazard warning system as claimed in claim 1, wherein said fourth switch is in series with said power source, said second flasher, and said single-throw, double-pole switch, and said single-throw, double-pole switch is movable manually between its open and closed positions, respectively.
Claim 4
Dependent Claim
49 words
A combined turn signal and hazard warning system as claimed in claim 1, wherein a relay is provided for moving said single-throw, double-pole switch to closed position, and the coil of said relay is in series circuit with said power source, said fourth switch, and a manually operable switch.
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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) | 1978-04-14 | 1978-10-14 | 1979-04-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1982-04-14 | 1982-10-14 | 1983-04-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1986-04-14 | 1986-10-14 | 1987-04-15 | $7700.00 | Window Closed / Lapsed |