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Patent US4521782A successfully refreshed from Google Patents.
US4521782A
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Target seeker used in a pointer and tracking assembly
Assignee: Boeing Co
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Filing: 1983-05-05
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Granted: 1985-06-04
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Expires: 2003-05-05
Abstract
Abstract An improved target seeker used in a pointer and tracking assembly for searching a large area in an X-Y plane, commonly called a field of regard. The improved seeker can search the field of regard using sweeps, spirals, circles and other types of scan patterns without blind spot restrictions.
Inventors
- 👤 George T. Pinson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 20:50
CPC Classifications
F; F41; F41G; F41G7/00; F41G7/20; F41G7/22; F41G7/2273; F41G7/2293; F41G7/2213; F41G7/2246; F41G7/2253; F41G7/2286; H; H01; H01Q; H01Q3/00; H01Q3/02; H01Q3/08
Claims Analysis
Total Claims: 10
Claim 1
Independent Claim
146 words
An improved target seeker used in a pointer and tracking assembly, the seeker comprising: a primary sensing element attached to a movable head, the movable head having a stylus mounted thereon; a secondary sensing element attached to the front of the head for focusing the electromagnetic energy received onto a detector, the detector attached to the movable head and centered thereon; an X drive plate oriented in an X axis, the ends of the plate attached to part of a fixed frame of the assembly; a Y drive plate oriented in a Y axis, the ends of the plate attached to part of a fixed frame of the assembly, the stylus engaged by the X and Y drive plates for moving the head; means for rotating the X drive plate around an X axis; and means for rotating the Y drive plate around a Y axis.
Claim 2
Dependent Claim
146 words
An improved target seeker used in a pointer and tracking assembly, the seeker comprising: a primary sensing element attached to a movable head, the movable head having a stylus mounted thereon; a secondary sensing element attached to the front of the head for focusing the electromagnetic energy received onto a detector, the detector attached to the movable head and centered thereon; an X drive plate oriented in an X axis, the ends of the plate attached to part of a fixed frame of the assembly; a Y drive plate oriented in a Y axis, the ends of the plate attached to part of a fixed frame of the assembly, the stylus engaged by the X and Y drive plates for moving the head; means for rotating the X drive plate around an X axis; and means for rotating the Y drive plate around a Y axis.
Claim 3
Dependent Claim
18 words
The seeker as described in claim 1 wherein the primary sensing element and secondary sensing element are mirrors.
Claim 4
Dependent Claim
15 words
The seeker as described in claim 1 wherein the movable head is spherical in shape.
Claim 5
Dependent Claim
27 words
The seeker as described in claim 1 wherein the secondary sensing element is supported on a spider, the spider attached to the front of the movable head.
Claim 6
Dependent Claim
19 words
The seeker as described in claim 1 wherein the stylus is centered on the rear of the movable head.
Claim 7
Dependent Claim
33 words
The seeker as described in claim 1 wherein the X and Y drive plates are rotatably mounted on a support ring, the support ring is part of the fixed frame of the assembly.
Claim 8
Dependent Claim
16 words
The seeker as described in claim 1 wherein the primary sensing element is a radar antenna.
Claim 9
Dependent Claim
176 words
An improved target seeker used in a pointer and tracking assembly, the seeker comprising: a primary sensing element attached to a movable head, the movable head having a stylus centered thereon and mounted on the rear thereof; a secondary sensing element attached to a spider, the spider mounted on front of the movable head, the secondary sensing element focusing the electromagnetic energy received onto a detector, the detector attached to the front of the movable head and centered thereon; an X drive plate oriented in an X axis and having a drive slot therein, the ends of the plate attached to part of a fixed frame of the assembly; a Y drive plate oriented in a Y axis and having a drive slot therein, the ends of the plate attached to part of a fixed frame of the assembly; the stylus received through the drive slots of the X and Y drive plates; means for rotating the X drive plate around an X axis and means for rotating the Y drive plate around a Y axis.
Claim 10
Dependent Claim
176 words
An improved target seeker used in a pointer and tracking assembly, the seeker comprising: a primary sensing element attached to a movable head, the movable head having a stylus centered thereon and mounted on the rear thereof; a secondary sensing element attached to a spider, the spider mounted on front of the movable head, the secondary sensing element focusing the electromagnetic energy received onto a detector, the detector attached to the front of the movable head and centered thereon; an X drive plate oriented in an X axis and having a drive slot therein, the ends of the plate attached to part of a fixed frame of the assembly; a Y drive plate oriented in a Y axis and having a drive slot therein, the ends of the plate attached to part of a fixed frame of the assembly; the stylus received through the drive slots of the X and Y drive plates; means for rotating the X drive plate around an X axis and means for rotating the Y drive plate around a Y axis.
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) | 1988-06-03 | 1988-12-03 | 1989-06-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1992-06-03 | 1992-12-03 | 1993-06-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1996-06-03 | 1996-12-03 | 1997-06-04 | $7700.00 | Window Closed / Lapsed |