US4300736A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Fire control system
Assignee: Raytheon Co
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Filing: 1979-08-17
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Granted: 1981-11-17
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Expires: 1999-08-17
Abstract
Abstract A fire control system is shown wherein the relative rotational motion between a modulated beam of infrared energy and a spinning projectile is used to determine the displacement of such a projectile during flight from the centerline of such beam so that the trajectory of such projectile may be corrected as required to enable a selected target to be hit.
Inventors
- 👤 Perry A. Miles
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 12:39
CPC Classifications
F; F41; F41G; F41G7/00; F41G7/20; F41G7/24; F41G7/26; F41G7/266
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
185 words
A fire control system for guiding a rotating artillery shell in flight from a gun to a target, such system comprising: (a) sensor means, disposed at a point near the periphery of the base of the rotating artillery shell, for producing an electrical signal in response to infrared energy impinging upon such means; (b) means for projecting a beam of infrared energy to impinge on the sensor means, such beam being modulated by the image of a rotating reticle whereby the resulting electrical signal out of the sensor means is indicative of the spacing and direction between the centers of such beam and projectile; and (c) means for nulling the spacing between the centers of the beam and the rotating projectile, such means comprising a plurality of explosive squibs disposed about the rotating shell and logic circuitry, responsive to the resulting electrical signal out of the sensor means, to produce a firing signal when the spacing between the centers of the beam and the projectile exceeds a predetermined value and an unfired one of the explosive squibs is positioned to null, when fired, such spacing.
Claim 2
Dependent Claim
185 words
A fire control system for guiding a rotating artillery shell in flight from a gun to a target, such system comprising: (a) sensor means, disposed at a point near the periphery of the base of the rotating artillery shell, for producing an electrical signal in response to infrared energy impinging upon such means; (b) means for projecting a beam of infrared energy to impinge on the sensor means, such beam being modulated by the image of a rotating reticle whereby the resulting electrical signal out of the sensor means is indicative of the spacing and direction between the centers of such beam and projectile; and (c) means for nulling the spacing between the centers of the beam and the rotating projectile, such means comprising a plurality of explosive squibs disposed about the rotating shell and logic circuitry, responsive to the resulting electrical signal out of the sensor means, to produce a firing signal when the spacing between the centers of the beam and the projectile exceeds a predetermined value and an unfired one of the explosive squibs is positioned to null, when fired, such spacing.
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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) | 1984-11-16 | 1985-05-18 | 1985-11-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1988-11-16 | 1989-05-18 | 1989-11-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1992-11-16 | 1993-05-18 | 1993-11-17 | $7700.00 | Window Closed / Lapsed |