US4796834A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method for combatting of targets and projectile or missile for carrying out the method
Assignee: US Philips Corp
•
Filing: 1984-04-12
•
Granted: 1989-01-10
•
Expires: 2004-04-12
Abstract
Abstract Projectiles fired toward a target are provided with target tracking devices for automatic guidance. To improve accuracy of fire at least one projectile in a burst is provided with an illumination source which is activated by a target detector at the end of the projectile trajectory. The source selectively illuminates the target and its closest surroundings with radiation for which the target tracking device in other projectiles is sensitive. A following projectile corrects its trajectory toward the target. All projectiles in a burst can be provided with an illumination source which is activated at the end of the trajectory as a guidance aid for following projectiles.
Inventors
- 👤 Lars G. W. Ahlstrom
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 04:11
CPC Classifications
F; F41; F41G; F41G7/00; F41G7/20; F41G7/22; F41G7/2246; F41G7/226; F41G7/2273; F41G7/2286; F41G7/2293
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
182 words
A weapon system for guiding projectiles to a target at which they are fired, said projectiles including: (a) at least one target illuminating projectile having illuminating means for directively transmitting illuminating electromagnetic radiation towards the target only during a latter part of a continuing path of travel of said illuminating projectile toward said target; and (b) at least one self-guided projectile having a target tracking device comprising: (1) receiving and detecting means adapted for receiving and detecting illuminating electromagnetic radiation transmitted by a target illuminating projectile and reflected from the target; (2) signal processing means coupled to the receiving and detecting means for producing an error signal representing deviation of the self-guided projectile's path of travel from the target; and (3) guiding means coupled to the signal processing means and responsive to said error signal to adjust the path of travel of the self-guided projectile to reduce said deviation; said illuminating means comprising a multilobe antenna and means coupled to said antenna and to said signal processing means for selectively activating a lobe of said antenna in which the target is detected.
Claim 2
Dependent Claim
182 words
A weapon system for guiding projectiles to a target at which they are fired, said projectiles including: (a) at least one target illuminating projectile having illuminating means for directively transmitting illuminating electromagnetic radiation towards the target only during a latter part of a continuing path of travel of said illuminating projectile toward said target; and (b) at least one self-guided projectile having a target tracking device comprising: (1) receiving and detecting means adapted for receiving and detecting illuminating electromagnetic radiation transmitted by a target illuminating projectile and reflected from the target; (2) signal processing means coupled to the receiving and detecting means for producing an error signal representing deviation of the self-guided projectile's path of travel from the target; and (3) guiding means coupled to the signal processing means and responsive to said error signal to adjust the path of travel of the self-guided projectile to reduce said deviation; said illuminating means comprising a multilobe antenna and means coupled to said antenna and to said signal processing means for selectively activating a lobe of said antenna in which the target is detected.
Claim 3
Dependent Claim
180 words
A weapon system for guiding projectiles to a target at which they are fired, said projectiles including: (a) at least one target illuminating projectile having illuminating means for directively transmitting illuminating electromagnetic radiation towards the target only during a latter part of a continuing path of travel of said illuminating projectile toward said target; and (b) at least one self-guided projectile having a target tracking device comprising: (1) receiving and detecting means adapted for receiving and detecting illuminating electromagnetic radiation transmitted by a target illuminating projectile and reflected from the target; (2) signal processing means coupled to the receiving and detecting means for producing an error signal representing deviation of the self-guided projectile's path of travel from the target; and (3) guiding means coupled to the signal processing means and responsive to said error signal to adjust the path of travel of the self-guided projectile to reduce said deviation; said illuminating means comprising a laser light source and means coupled to said source and to said signal processing means for directing a light beam from said source toward the target.
Claim 4
Dependent Claim
180 words
A weapon system for guiding projectiles to a target at which they are fired, said projectiles including: (a) at least one target illuminating projectile having illuminating means for directively transmitting illuminating electromagnetic radiation towards the target only during a latter part of a continuing path of travel of said illuminating projectile toward said target; and (b) at least one self-guided projectile having a target tracking device comprising: (1) receiving and detecting means adapted for receiving and detecting illuminating electromagnetic radiation transmitted by a target illuminating projectile and reflected from the target; (2) signal processing means coupled to the receiving and detecting means for producing an error signal representing deviation of the self-guided projectile's path of travel from the target; and (3) guiding means coupled to the signal processing means and responsive to said error signal to adjust the path of travel of the self-guided projectile to reduce said deviation; said illuminating means comprising a laser light source and means coupled to said source and to said signal processing means for directing a light beam from said source toward the target.
References Cited (Backward Citations)
US3124072A
Cited
US2987269A
Cited
US3835749A
Cited
GB1419471A
Cited
US4004487A
Cited
US4457475A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1992-01-10 | 1992-07-11 | 1993-01-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1996-01-10 | 1996-07-11 | 1997-01-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2000-01-10 | 2000-07-11 | 2001-01-10 | $7700.00 | Window Closed / Lapsed |