US3092815A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Magnetic core sensing device
Assignee: International Business Machines Corp
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Filing: 1957-08-26
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Granted: 1963-06-04
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Expires: 1977-08-26
Abstract
No abstract record available.
Inventors
- 👤 Charles G Hinze
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 18:22
CPC Classifications
G; G06; G06K; G06K7/00; G06K7/08; G06K7/082; G06K7/087; G06V; G06V10/00; G06V10/10; G06V30/00; G06V30/10; G06V30/14; G06V30/144; G11; G11B; G11B5/00; G11B5/127; G11B5/33; G11C; G11C17/00; G11C17/02
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
154 words
A DEVICE FOR SENSING INDICIA DEFINED BY MATERIAL HAVING A DIFFERENT MAGNETIC RELUCTANCE THAN ITS ENVIRONMENT COMPRISING A FIRST CORE MEMBER HAVING A PAIR OF SPACED ADJACENTLY POSITIONED POLE TIPS, MEANS UPON SAID CORE MEMBER FOR ENERGIZING SAID MEMBER TO PRODUCE A MAGNETIC FIELD EXTENDING NORMALLY DIRECTLY FROM POLE TIP TO POLE TIP, A SECOND CORE MEMBER SPACED IN ITS ENTIRETY FROM SAID FIRST CORE MEMBER AND HAVING A PAIR OF POLE TIPS LOCATED ADJACENT THE POLE TIPS OF SAID FIRST CORE MEMBER AT OPPOSITE SIDES OF THE MAGNETIC FIELD ESTABLISHED BETWEEN THE POLE TIPS OF SAID FIRST CORE MEMBER, AND A SENSING WINDING UPON SAID SECOND CORE MEMBER OPERATIVE TO PRODUCE A SIGNAL IN RESPONSE TO VARIATIONS IN THE NORMAL CONFIGURATION OF THE MAGNETIC FIELD BETWEEN THE POLE TIPS OF SAID FIRST CORE MEMBER AS PRODUCED BY THE PROXIMITY, TO THE POLE TIPS, OF A MAGNETIC MATERIAL OF DIFFERENT RELUCTANCE THAN ITS ENVIRONMENT.
Claim 2
Independent Claim
154 words
A DEVICE FOR SENSING INDICIA DEFINED BY MATERIAL HAVING A DIFFERENT MAGNETIC RELUCTANCE THAN ITS ENVIRONMENT COMPRISING A FIRST CORE MEMBER HAVING A PAIR OF SPACED ADJACENTLY POSITIONED POLE TIPS, MEANS UPON SAID CORE MEMBER FOR ENERGIZING SAID MEMBER TO PRODUCE A MAGNETIC FIELD EXTENDING NORMALLY DIRECTLY FROM POLE TIP TO POLE TIP, A SECOND CORE MEMBER SPACED IN ITS ENTIRETY FROM SAID FIRST CORE MEMBER AND HAVING A PAIR OF POLE TIPS LOCATED ADJACENT THE POLE TIPS OF SAID FIRST CORE MEMBER AT OPPOSITE SIDES OF THE MAGNETIC FIELD ESTABLISHED BETWEEN THE POLE TIPS OF SAID FIRST CORE MEMBER, AND A SENSING WINDING UPON SAID SECOND CORE MEMBER OPERATIVE TO PRODUCE A SIGNAL IN RESPONSE TO VARIATIONS IN THE NORMAL CONFIGURATION OF THE MAGNETIC FIELD BETWEEN THE POLE TIPS OF SAID FIRST CORE MEMBER AS PRODUCED BY THE PROXIMITY, TO THE POLE TIPS, OF A MAGNETIC MATERIAL OF DIFFERENT RELUCTANCE THAN ITS ENVIRONMENT.
References Cited (Backward Citations)
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US2712572A
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US2700703A
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GB707699A
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US2803708A
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US2929670A
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US2873319A
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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) | 1966-06-03 | 1966-12-03 | 1967-06-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-06-03 | 1970-12-03 | 1971-06-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-06-03 | 1974-12-03 | 1975-06-04 | $7700.00 | Window Closed / Lapsed |