Patent US3323699A successfully refreshed from Google Patents.
US3323699A
Expired / Lapsed
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Strip centerline sensor and control
Assignee: Allegheny Ludlum Steel Corp
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Filing: 1965-10-04
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Granted: 1967-06-06
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Expires: 1985-10-04
Abstract
No abstract record available.
Inventors
- 👤 Jr Gayle A Bricker
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 19:49
CPC Classifications
B; B65; B65H; B65H23/00; B65H23/02; B65H23/0204; B65H23/032; B65H23/038
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
135 words
IN A SYSTEM FOR SENSING THE EDGE OF A MOVING STRIP OF MATERIAL WITH REGARD TO A GIVEN REFERENCE POINT, THE IMPROVEMENT COMPRISING, (A) A CONDUCTIVE DETECTOR MEMBER HAVING A SEGMENT THEREOF DISPOSED IN SPACED PARALLEL RELATION TO THE PLANE OF MOVEMENT OF THE STRIP MATERIAL ADJACENT ONE EDGE THEREOF, SAID SEGMENT HAVING AN AREA IN A CONTINUALLY OVERLAPPING RELATIONSHIP WITH SAID STRIP, SAID MEMBER AND SAID STRIP COOPERATING TO FORM A PORTION OF A CAPACITIVE ELEMENT WHICH IS CHARACTERIZED BY A CAPACITANCE PROPORTIONAL TO THE OVERLAPPING AREA; AND (B) ELECTRICALLY ENERGIZED CIRCUIT MEANS CONNECTED TO SAID CAPACITIVE ELEMENT, THE OUTPUT OF WHICH VARIES IN PROPORTION TO THE CAPACITANCE OF THE CAPACTIVE ELEMENT WHEREBY THE OUTPUT OF SAID CIRCUIT MEANS PRODUCES AN INDICATION OF THE DEVIATION OF SAID MOVING STRIP FROM A GIVEN REFERENCE POINT.
Claim 2
Dependent Claim
135 words
IN A SYSTEM FOR SENSING THE EDGE OF A MOVING STRIP OF MATERIAL WITH REGARD TO A GIVEN REFERENCE POINT, THE IMPROVEMENT COMPRISING, (A) A CONDUCTIVE DETECTOR MEMBER HAVING A SEGMENT THEREOF DISPOSED IN SPACED PARALLEL RELATION TO THE PLANE OF MOVEMENT OF THE STRIP MATERIAL ADJACENT ONE EDGE THEREOF, SAID SEGMENT HAVING AN AREA IN A CONTINUALLY OVERLAPPING RELATIONSHIP WITH SAID STRIP, SAID MEMBER AND SAID STRIP COOPERATING TO FORM A PORTION OF A CAPACITIVE ELEMENT WHICH IS CHARACTERIZED BY A CAPACITANCE PROPORTIONAL TO THE OVERLAPPING AREA; AND (B) ELECTRICALLY ENERGIZED CIRCUIT MEANS CONNECTED TO SAID CAPACITIVE ELEMENT, THE OUTPUT OF WHICH VARIES IN PROPORTION TO THE CAPACITANCE OF THE CAPACTIVE ELEMENT WHEREBY THE OUTPUT OF SAID CIRCUIT MEANS PRODUCES AN INDICATION OF THE DEVIATION OF SAID MOVING STRIP FROM A GIVEN REFERENCE POINT.
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) | 1970-06-05 | 1970-12-05 | 1971-06-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-06-05 | 1974-12-05 | 1975-06-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-06-05 | 1978-12-05 | 1979-06-06 | $7700.00 | Window Closed / Lapsed |