US3260870A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Magnetic detent mechanism
Assignee: International Business Machines Corp
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Filing: 1962-12-28
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Granted: 1966-07-12
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Expires: 1982-12-28
Abstract
No abstract record available.
Inventors
- 👤 Jr Laurence R Beach
- 👤 Robert J Black
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 12:54
CPC Classifications
G; G11; G11B; G11B5/00; G11B5/48; G11B5/54; G11B5/55; G11B5/5521
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
153 words
A MAGNETIC DETEND MECHANISM COMPRISING; (A) A POSITIONAL MEMBER MOUNTED FOR FREE MOVEMENT ALONG A PATH, (B) DRIVE MEANS FOR DRIVING THE POSITIONAL MEMBER TO EACH OF A PLURALITY OF SELECTED POSITIONS ALONG SUCH PATH, (C) DENT MECHANISM FOR ACCURATELY CENTERING THE POSITIONAL MEMBER IN EACH OF SUCH SELECTED POSITIONS, SAID DETENT MECHANISM COMPRISING A FIRST PLURALITY OF SIMULTANEOUSLY MAGNETIZED MAGNETIC ELEMENTS MOUNTED ON THE POSITIONAL MEMBER IN EQUALLY SPACED, ALIGNED RELATION ALONG AND PARALLEL TO SUCH PATH, AND (D) A SECOND PLURALITY OF MAGNETIC ELEMENTS FIXEDLY MOUNTED IN THE SAME SPACED, ALIGNED RELATION CLOSELY ADJACENT AND PARALLEL TO SUCH PATH, AND SPACED SLIGHTLY FROM THE FIRST PLURALITY OF MAGNETIC ELEMENTS, AND SO POSITIONED THAT IN EACH OF SUCH SELECTED POSITIONS OF THE POSITIONAL MEMBER A PLURALITY OF THE TEETH OF BOTH PLURALITIES THEREOF ARE IN DIRECTLY OPPOSITE RELATION TO EACH OTHER TO MAGNETICALLY CENTER AND RETAIN THE POSITIONAL MEMBER IN SUCH POSITION.
Claim 2
Dependent Claim
153 words
A MAGNETIC DETEND MECHANISM COMPRISING; (A) A POSITIONAL MEMBER MOUNTED FOR FREE MOVEMENT ALONG A PATH, (B) DRIVE MEANS FOR DRIVING THE POSITIONAL MEMBER TO EACH OF A PLURALITY OF SELECTED POSITIONS ALONG SUCH PATH, (C) DENT MECHANISM FOR ACCURATELY CENTERING THE POSITIONAL MEMBER IN EACH OF SUCH SELECTED POSITIONS, SAID DETENT MECHANISM COMPRISING A FIRST PLURALITY OF SIMULTANEOUSLY MAGNETIZED MAGNETIC ELEMENTS MOUNTED ON THE POSITIONAL MEMBER IN EQUALLY SPACED, ALIGNED RELATION ALONG AND PARALLEL TO SUCH PATH, AND (D) A SECOND PLURALITY OF MAGNETIC ELEMENTS FIXEDLY MOUNTED IN THE SAME SPACED, ALIGNED RELATION CLOSELY ADJACENT AND PARALLEL TO SUCH PATH, AND SPACED SLIGHTLY FROM THE FIRST PLURALITY OF MAGNETIC ELEMENTS, AND SO POSITIONED THAT IN EACH OF SUCH SELECTED POSITIONS OF THE POSITIONAL MEMBER A PLURALITY OF THE TEETH OF BOTH PLURALITIES THEREOF ARE IN DIRECTLY OPPOSITE RELATION TO EACH OTHER TO MAGNETICALLY CENTER AND RETAIN THE POSITIONAL MEMBER IN SUCH POSITION.
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) | 1969-07-11 | 1970-01-10 | 1970-07-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-07-11 | 1974-01-10 | 1974-07-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-07-11 | 1978-01-10 | 1978-07-12 | $7700.00 | Window Closed / Lapsed |