US3810150A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Navigational light system
Assignee: Tideland Signal Corp
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Filing: 1973-01-04
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Granted: 1974-05-07
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Expires: 1993-01-04
Abstract
Abstract On and off times for a coded flashing navigational light are controlled by a unijunctional transistor timer having different time constant circuits which are individually connected to the transistor by a counter in a sequence determined by a wired code board.
Inventors
- 👤 T Jacobs
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 01:32
CPC Classifications
G; G08; G08B; G08B5/00; G08B5/22; G08B5/36; G08B5/38; H; H05; H05B; H05B39/00; H05B39/09; H05B39/10; H05B39/105; H05B47/00; H05B47/20; H05B47/21; H05B47/29
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
65 words
A coded timer for controlling the flashing code of a navigational light comprising, a timer controlling the actuation of the light, a plurality of time constant circuits connected to the timer, a counter having a plurality of sequential actuated outputs, means for providing connections between the outputs and said time constant circuits for controlling the actuation of the timer for providing the desired flashing code.
Claim 2
Dependent Claim
65 words
A coded timer for controlling the flashing code of a navigational light comprising, a timer controlling the actuation of the light, a plurality of time constant circuits connected to the timer, a counter having a plurality of sequential actuated outputs, means for providing connections between the outputs and said time constant circuits for controlling the actuation of the timer for providing the desired flashing code.
Claim 3
Dependent Claim
88 words
A coded timer for controlling the flashing code of a navigational light comprising, a timer controlling the actuation of the light, a plurality of different time constant circuits connected to the timer, a clock actuated counter having a plurality of sequential equally timed outputs, the outputs of the counter being one way coupled to said time constant circuits for controlling the actuation of the timer for providing the desired flashing code, the signal output of the timer being connected to the time constant circuits providing an on flash.
Claim 4
Dependent Claim
88 words
A coded timer for controlling the flashing code of a navigational light comprising, a timer controlling the actuation of the light, a plurality of different time constant circuits connected to the timer, a clock actuated counter having a plurality of sequential equally timed outputs, the outputs of the counter being one way coupled to said time constant circuits for controlling the actuation of the timer for providing the desired flashing code, the signal output of the timer being connected to the time constant circuits providing an on flash.
References Cited (Backward Citations)
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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) | 1977-05-06 | 1977-11-05 | 1978-05-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-05-06 | 1981-11-05 | 1982-05-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-05-06 | 1985-11-05 | 1986-05-07 | $7700.00 | Window Closed / Lapsed |