US3291990A
Expired / Lapsed
US
⏱️ 0.0 years remaining
All-weather angular tracking system
Assignee: Industrial Nucleonics Corp
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Filing: 1963-04-08
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Granted: 1966-12-13
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Expires: 1983-04-08
Abstract
No abstract record available.
Inventors
- 👤 John J Lentz
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 23:32
CPC Classifications
G; G01; G01S; G01S11/00; G01S11/12; G01S11/125; G01T; G01T7/00
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
142 words
APPARATUS FOR TRACKING A BODY MOVING IN SPACE AND CARRYING A SOURCE SUCH AS RADIOACTIVE MATERIAL THAT PRODUCES PENETRATING RADITION, SAID APPARATUS COMPRISING DETECTION MEANS RESPONSIVE TO SAID PENETRATING RADIATION BY PRODUCING DETECTION SIGNALS SYSTEMATICALLY RELATED TO THE RADIATION DETECTED, A PAIR OF DIRECTOR MEANS DISPOSED BEFORE SAID DETECTION MEANS EACH RESTRICTING THE DIRECTION WHENCE SAID PENETRATIVE RADIATION REACHES SAID DETECTION MEANS TO A RESPECTIVE PREFERRED DIRECTION, COMPARISON MEANS FOR COMPARING DETECTION SIGNALS RELATED TO RADIATION REACHING SAID DETECTION MEANS FROM EACH OF SAID PREFERRED DIRECTIONS DEFINED BY SAID DIRECTOR MEANS, MOTOR MEANS RESPONSIVE TO SAID COMPARISON MEANS FOR MOVING BOTH SAID DIRECTOR MEANS AS A UNIT TO MAKE THE COMPARED SIGNALS MORE NEARLY EQUAL, AND MEANS RESPONSIVE TO THE POSITION OF SAID DETECTOR MEANS FOR DERIVING A SIGNAL INDICATIVE OF THE DIRECTION OF SAID SOURCE RELATIVE TO AN ARBITRARILY CHOSEN AXIS.
Claim 2
Dependent Claim
142 words
APPARATUS FOR TRACKING A BODY MOVING IN SPACE AND CARRYING A SOURCE SUCH AS RADIOACTIVE MATERIAL THAT PRODUCES PENETRATING RADITION, SAID APPARATUS COMPRISING DETECTION MEANS RESPONSIVE TO SAID PENETRATING RADIATION BY PRODUCING DETECTION SIGNALS SYSTEMATICALLY RELATED TO THE RADIATION DETECTED, A PAIR OF DIRECTOR MEANS DISPOSED BEFORE SAID DETECTION MEANS EACH RESTRICTING THE DIRECTION WHENCE SAID PENETRATIVE RADIATION REACHES SAID DETECTION MEANS TO A RESPECTIVE PREFERRED DIRECTION, COMPARISON MEANS FOR COMPARING DETECTION SIGNALS RELATED TO RADIATION REACHING SAID DETECTION MEANS FROM EACH OF SAID PREFERRED DIRECTIONS DEFINED BY SAID DIRECTOR MEANS, MOTOR MEANS RESPONSIVE TO SAID COMPARISON MEANS FOR MOVING BOTH SAID DIRECTOR MEANS AS A UNIT TO MAKE THE COMPARED SIGNALS MORE NEARLY EQUAL, AND MEANS RESPONSIVE TO THE POSITION OF SAID DETECTOR MEANS FOR DERIVING A SIGNAL INDICATIVE OF THE DIRECTION OF SAID SOURCE RELATIVE TO AN ARBITRARILY CHOSEN 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) | 1969-12-12 | 1970-06-13 | 1970-12-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-12-12 | 1974-06-13 | 1974-12-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-12-12 | 1978-06-13 | 1978-12-13 | $7700.00 | Window Closed / Lapsed |