US3934249A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Border flashers
Assignee: Lawrence Peska Associates Inc
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Filing: 1974-03-13
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Granted: 1976-01-20
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Expires: 1994-03-13
Abstract
Abstract An improved border lamp flasher device employing electronic circuitry by which lamps are switched on and off in such a way as to make it appear as if the lamps are circulating around the border of a sign, marquee or the like, or an attention getter advertising display. It omits any electro-mechanical switching means, using only solid-state circuits of the sub-miniature integrated circuit type, which are becoming increasingly inexpensive as mass production and ultimate industrial use increases. This eliminates sparking contacts which have had considerable damaging effects on television reception.
Inventors
- 👤 James Sanjana
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 08:46
CPC Classifications
G; G09; G09F; G09F13/00; G09F13/30; H; H05; H05B; H05B39/00; H05B39/09
Claims Analysis
Total Claims: 7
Claim 1
Independent Claim
115 words
A source of electric power, lamp means for connection to said source of electric power for being energized thereby to produce illumination, major electric and electric switch means connected to said source of electric power and said lamp means for controlling the flow of current to said lamp means, electronic gate means for blocking said current flow, and illumination control and regulating means connected to said lamp means and said major switch means for controlling the turning on and off of said lamp means, timed pulse generating means, said control and regulating means being constructed and arranged for predetermining the timing and duration of said periods of turning on and off of said lamp means.
Claim 2
Dependent Claim
115 words
A source of electric power, lamp means for connection to said source of electric power for being energized thereby to produce illumination, major electric and electric switch means connected to said source of electric power and said lamp means for controlling the flow of current to said lamp means, electronic gate means for blocking said current flow, and illumination control and regulating means connected to said lamp means and said major switch means for controlling the turning on and off of said lamp means, timed pulse generating means, said control and regulating means being constructed and arranged for predetermining the timing and duration of said periods of turning on and off of said lamp means.
Claim 3
Dependent Claim
46 words
The construction of claim 1, and wherein said lamp means comprises a plurality of discrete banks of lamps, said major switch means being constructed and arranged for conducting any portion and the intirity of said current to said lamps according to a predetermined pulsed timing pattern.
Claim 4
Dependent Claim
65 words
The construction of claim 1 and wherein said lamp means comprises a plurality of discrete banks of individual lamps, with a plurality of lamps connected in each of said banks of lamps, and wherein said illumination control and regulating means and said electronic gate means is interposed in said major switch means for selectively turning on and off any of said banks of individual lamps.
Claim 5
Dependent Claim
48 words
The construction of claim 3, and comprising said clock pulse generator means interposed in said circuit intermediate said source of electric power and said lamp means for generating timed pulses in said circuit, and NAND electronic gate means for selectively blocking current flow to any said lamp means.
Claim 6
Dependent Claim
67 words
The construction of claim 4, and comprising a plurality of discrete flip-flop circuit means connected to said clock pulse generator means, and opto-circuit isolator photon coupler and decoupler means interposed in each of said flip-flop circuit means for selectively blocking energization of said portion of said lamp means during a predetermined time cycle period, while retaining unblocked the remaining lamp means for illumination during said cycle period.
Claim 7
Dependent Claim
70 words
The construction of claim 5, and comprising a plurality of silicon-controlled rectifier means connected as TRIACS between said opto-circuit isolator means and said lamp means for predetermined regulated lamp current cut-off to give a rolling border illumination effect, with only one lamp bank at a time being cut off, said NAND electronic gate means being connected to each said silicon-controlled rectifier means for controlling current flow to said lamp means.
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) | 1979-01-19 | 1979-07-21 | 1980-01-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1983-01-19 | 1983-07-21 | 1984-01-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1987-01-19 | 1987-07-21 | 1988-01-20 | $7700.00 | Window Closed / Lapsed |