Patent US4065700A successfully refreshed from Google Patents.
US4065700A
Expired / Lapsed
US
⏱️ 0.0 years remaining
D. C. powered strobe light
Assignee: Individual
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Filing: 1976-07-06
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Granted: 1977-12-27
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Expires: 1996-07-06
Abstract
Abstract A strobe light circuit adapted for use with a battery including a transformer and oscillator connected to charge a storage capacitor disposed across a discharge tube. A fourth winding in the transformer provides the trigger signal to the tube. By this arrangement the trigger pulse becomes progressively higher with increasing charge on the storage capacitor utilizing to best advantage the parameter relationships of the tube.
Inventors
- 👤 Theodore Liebman
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 19:32
CPC Classifications
H; H05; H05B; H05B41/00; H05B41/14; H05B41/30; H05B41/34
Claims Analysis
Total Claims: 5
Claim 1
Independent Claim
76 words
A strobe light circuit powered by a source of direct current, comprising: oscillating means connected for excitation to said direct current source; transformer means coupled to said oscillating means and including an additional winding connected between the ends of the primary and secondary thereof; a discharge tube connected by its anode to said end of said secondary of said transformer means; and trigger means connected between the other end of said secondary and said discharge tube.
Claim 2
Dependent Claim
76 words
A strobe light circuit powered by a source of direct current, comprising: oscillating means connected for excitation to said direct current source; transformer means coupled to said oscillating means and including an additional winding connected between the ends of the primary and secondary thereof; a discharge tube connected by its anode to said end of said secondary of said transformer means; and trigger means connected between the other end of said secondary and said discharge tube.
Claim 3
Dependent Claim
31 words
Apparatus according to claim 1 further comprising: capacitive means disposed between the anode and cathode of said discharge tube for accumulating the charge developed by said secondary of said transformer means.
Claim 4
Dependent Claim
58 words
Apparatus according to claim 2 wherein: said oscillating means includes a transistor connected by the collector thereof to said primary of said transformer means and the emitter thereof to ground of said direct current source, and a fourth winding in said transformer in circuit with a first diode operatively connected between the emitter and base of said transistor.
Claim 5
Dependent Claim
31 words
Apparatus according to claim 3 further including: a second diode connected in circuit between said one end of the secondary of said transformer means and said anode of said discharge tube.
References Cited (Backward Citations)
US3237052A
Cited
US4005335A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1980-12-26 | 1981-06-27 | 1981-12-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1984-12-26 | 1985-06-27 | 1985-12-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1988-12-26 | 1989-06-27 | 1989-12-27 | $7700.00 | Window Closed / Lapsed |