US3148497A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Synchronised magnetic escapement
Assignee: Individual
•
Filing: 1962-05-23
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Granted: 1964-09-15
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Expires: 1982-05-23
Abstract
No abstract record available.
Inventors
- 👤 Cecil F Clifford
- 👤 Jonathan Anthony H Key
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 06:09
CPC Classifications
G; G04; G04C; G04C5/00; G04C5/005; Y; Y10; Y10S; Y10S388/00; Y10S388/923; Y10S388/93; Y10S388/932
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
122 words
A TIME CONTROL MECHANISM COMPRISING AN ESCAPEMENT WHEEL HAVING A WAVY MAGNETIC TRACK THEREAROUND AND AN OSCILLATORY MAGNETIC SYSTEM CO-OPERATING THEREWITH, AN ARMATURE CONSISTING OF A FLAT THIN STRIP OF MAGNETIC MATERIAL ATTACHED TO THE MAGNETIC SYSTEM SO AS TO BE OSCILLATORY THEREWITH ABOUT A REPOSE POSITION, AND AN ELECTRO-MAGNET HAVING A WINDING AND A MAGNETIC CIRCUIT AS A THIN STRIP OF MAGNETIC MATERIAL WITH TWO ENDS THEREOF PRESENTING OPPOSED CO-PLANAR POLE PIECES SEPARATED TO PROVIDE A GAP IN THE MAGNETIC CIRCUIT, THE ARMATURE BEING OSCILLATORY IN A PATH WHICH EXTENDS AT LEAST INTO THE GAP, AND THE PLANE OF THE ARMATURE BEING SUBSTANTIALLY PARALLEL TO THE COMMON PLANE OF THE CO-PLANAR POLE PIECES WHEN THE ARMATURE IS IN THE REPOSE POSITION.
Claim 2
Dependent Claim
122 words
A TIME CONTROL MECHANISM COMPRISING AN ESCAPEMENT WHEEL HAVING A WAVY MAGNETIC TRACK THEREAROUND AND AN OSCILLATORY MAGNETIC SYSTEM CO-OPERATING THEREWITH, AN ARMATURE CONSISTING OF A FLAT THIN STRIP OF MAGNETIC MATERIAL ATTACHED TO THE MAGNETIC SYSTEM SO AS TO BE OSCILLATORY THEREWITH ABOUT A REPOSE POSITION, AND AN ELECTRO-MAGNET HAVING A WINDING AND A MAGNETIC CIRCUIT AS A THIN STRIP OF MAGNETIC MATERIAL WITH TWO ENDS THEREOF PRESENTING OPPOSED CO-PLANAR POLE PIECES SEPARATED TO PROVIDE A GAP IN THE MAGNETIC CIRCUIT, THE ARMATURE BEING OSCILLATORY IN A PATH WHICH EXTENDS AT LEAST INTO THE GAP, AND THE PLANE OF THE ARMATURE BEING SUBSTANTIALLY PARALLEL TO THE COMMON PLANE OF THE CO-PLANAR POLE PIECES WHEN THE ARMATURE IS IN THE REPOSE POSITION.
References Cited (Backward Citations)
US1989604A
Cited
GB698406A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1967-09-15 | 1968-03-16 | 1968-09-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-09-15 | 1972-03-16 | 1972-09-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-09-15 | 1976-03-16 | 1976-09-15 | $7700.00 | Window Closed / Lapsed |