US4234911A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Optical firing adaptor
Assignee: Individual
•
Filing: 1979-03-13
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Granted: 1980-11-18
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Expires: 1999-03-13
Abstract
Abstract An optical apparatus adapted for insertion into the open end of a hand-gun barrel. A piezoelectric crystal produces an output signal in response to the hammer impact to cause an LED to be intermittently operated by an oscillator powered by batteries and produce pulses of light which are directed by a lens onto a target. The oscillator is also coupled to a counter which is reset by the crystal output and which disables a gate between oscillator and LED upon a first count and enables a gate connecting the counter reset to the crystal upon a second count.
Inventors
- 👤 Donald L. Faith
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 13:20
CPC Classifications
F; F41; F41A; F41A33/00; F41A33/02; F41G; F41G3/00; F41G3/26; F41G3/2616; F41G3/2622; F41G3/2655
Claims Analysis
Total Claims: 14
Claim 1
Independent Claim
76 words
An apparatus for insertion in a gun barrel to produce pulses of light simultaing firing of the gun comprising: means for detecting vibrations produced by the hammer impact resulting from pulling the trigger and producing at least one electrical pulse in response thereto; a source of electrical energy connected to said detecting and producing means; and a light source connected to said detecting and producing means for producing said pulses in response to said electrical pulse.
Claim 2
Independent Claim
76 words
An apparatus for insertion in a gun barrel to produce pulses of light simultaing firing of the gun comprising: means for detecting vibrations produced by the hammer impact resulting from pulling the trigger and producing at least one electrical pulse in response thereto; a source of electrical energy connected to said detecting and producing means; and a light source connected to said detecting and producing means for producing said pulses in response to said electrical pulse.
Claim 3
Dependent Claim
32 words
An apparatus as in claim 1, further including a housing adapted for fitting into the open end of a hand-gun barrel and containing said detecting means, electrical energy source, and light source.
Claim 4
Dependent Claim
16 words
An apparatus as in claim 1, wherein said electrical energy source includes at least one battery.
Claim 5
Dependent Claim
15 words
An apparatus as in claim 3, including a plurality of said batteries connected in series.
Claim 6
Dependent Claim
43 words
An apparatus as in claim 1, or 2, wherein said detecting means includes a piezoelectric crystal for producing an output signal in response to hammer impact and oscillator means for producing a plurality of said electrical pulses in response to said output signal.
Claim 7
Dependent Claim
55 words
An apparatus as in claim 5, wherein said oscillator means includes an oscillator circuit, a counter for counting said electrical pulses and logic means connected to said counter and connecting said oscillator circuit to said light source for applying said electrical pulses to said crystal until the count in said counter reaches a predetermined count.
Claim 8
Dependent Claim
44 words
An apparatus as in claim 6, wherein said logic means connected between said oscillator and said crystal for resetting said counter in response to said output signal and for preventing resetting thereafter until said counter reaches a second count greater than said predetermined count.
Claim 9
Dependent Claim
17 words
An apparatus as in claim 1, 2, 3, or 4, wherein said light source is an LED.
Claim 10
Dependent Claim
21 words
An apparatus as in claim 8, including a lens in said housing for directing said pulses of light onto a target.
Claim 11
Dependent Claim
69 words
A circuit for producing a burst of optical pulses, said circuit being adapted for fitting within the barrel of a gun, comprising: a piezo-electric crystal for producing an output signal in response to hammer impact of the gun; an oscillator for producing electrical pulses; an LED; means for applying said electrical pulses to said LED in response to said output signal so that said LED produces said optical pulses.
Claim 12
Dependent Claim
69 words
A circuit for producing a burst of optical pulses, said circuit being adapted for fitting within the barrel of a gun, comprising: a piezo-electric crystal for producing an output signal in response to hammer impact of the gun; an oscillator for producing electrical pulses; an LED; means for applying said electrical pulses to said LED in response to said output signal so that said LED produces said optical pulses.
Claim 13
Dependent Claim
32 words
A circuit as in claim 10, wherein said means includes means for preventing said electrical pulses from being applied to said LED for a given time after said optical pulses are produced.
Claim 14
Dependent Claim
44 words
A circuit as in claim 10, wherein said means includes a counter for counting the electrical pulses produced by said oscillator and gate means connecting said oscillator to said LED for preventing application of further electrical pulses after said counter reaches a predetermined count.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1983-11-18 | 1984-05-19 | 1984-11-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1987-11-18 | 1988-05-19 | 1988-11-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1991-11-18 | 1992-05-19 | 1992-11-18 | $7700.00 | Window Closed / Lapsed |