Patent US4011789A successfully refreshed from Google Patents.
US4011789A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Gun fire control system
Assignee: General Electric Co
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Filing: 1974-05-06
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Granted: 1977-03-15
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Expires: 1994-05-06
Abstract
Abstract A fire control system is provided utilizing a laser range finder mounted directly on the gun turret.
Inventors
- 👤 Louis B. Bresee, Jr.
- 👤 Charles A. Brownlee
- 👤 Robert A. Leightner
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 15:50
CPC Classifications
F; F41; F41G; F41G3/00; F41G3/06; F41G3/065; F41G5/00; F41G5/06
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
183 words
In a gun and fire control system having: a gun, mounted in a turret which is aimed by a servo system, and having a firing mechanism and a trigger to fire said gun; a remote gunner's sight for providing target elevation and azimuth signals to said servo system; a computer for providing a lead angle signal to said servo system; the improvement of: a laser range finder mounted to and boresighted with said gun, for providing a real target range signal to said computer; first means coupled to said servo system, to said computer and to said trigger for decoupling said lead angle signal from said servo system until said trigger is actuated to fire said gun, and upon said trigger being actuated to fire said gun, coupling said lead angle signal to said servo system to cause said servo system to drive said gun and said laser range finder from a line of sight orientation while said gunner's sight remains unaffected and available for continuing to provide target elevation and azimuth signals to said servo system to a line of fire orientation.
Claim 2
Dependent Claim
183 words
In a gun and fire control system having: a gun, mounted in a turret which is aimed by a servo system, and having a firing mechanism and a trigger to fire said gun; a remote gunner's sight for providing target elevation and azimuth signals to said servo system; a computer for providing a lead angle signal to said servo system; the improvement of: a laser range finder mounted to and boresighted with said gun, for providing a real target range signal to said computer; first means coupled to said servo system, to said computer and to said trigger for decoupling said lead angle signal from said servo system until said trigger is actuated to fire said gun, and upon said trigger being actuated to fire said gun, coupling said lead angle signal to said servo system to cause said servo system to drive said gun and said laser range finder from a line of sight orientation while said gunner's sight remains unaffected and available for continuing to provide target elevation and azimuth signals to said servo system to a line of fire orientation.
Claim 3
Dependent Claim
56 words
In the system of claim 1 the further improvement of: second means coupled to said trigger, to the firing mechanism of said gun and to said servo system for delaying the functioning of said firing mechanism until said servo system has driven said gun from said line of sight orientation to said line of fire orientation.
Claim 4
Dependent Claim
53 words
In the system of claim 1 the further improvement, wherein: said first means, upon said trigger being deactuated, decouples said lead angle signal from said servo system to cause said servo system to drive said gun and said laser range finder from said line of fire orientation to said line of sight orientation.
Claim 5
Dependent Claim
71 words
In the system of claim 1 the further improvement of: third means for providing a predicted target range signal to said computer; fourth means coupled to said trigger, to said computer, to said laser range finder and to said third means for coupling said real target signal to said computer when said trigger is not actuated, and for coupling said predicted target signal to said computer when said trigger is actuated.
Claim 6
Dependent Claim
28 words
In the system of claim 4 the further improvement, wherein: said third means includes means for measuring and integrating air speed to generate said predicted target range signal.
References Cited (Backward Citations)
US3766826A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1980-03-14 | 1980-09-13 | 1981-03-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1984-03-14 | 1984-09-13 | 1985-03-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1988-03-14 | 1988-09-13 | 1989-03-15 | $7700.00 | Window Closed / Lapsed |