Patent US3248583A successfully refreshed from Google Patents.
US3248583A
Expired / Lapsed
US
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Magnetic coupling
Assignee: Badger Meter Inc
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Filing: 1962-12-07
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Granted: 1966-04-26
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Expires: 1982-12-07
Abstract
No abstract record available.
Inventors
- 👤 Donald J Kullmann
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 21:02
CPC Classifications
H; H02; H02K; H02K49/00; H02K49/10; H02K49/104; H02K49/108; G; G01; G01F; G01F15/00; G01F15/06; G01F15/065; G01F15/066; G01F3/00; G01F3/02; G01F3/04; G01F3/06; G01F3/12; H02K5/00; H02K5/04; H02K5/12; H02K5/128
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
149 words
A MAGNETIC COUPLING ADAPTED TO TRANSMIT ROTARY MOTION THROUGH A FLAT WALL OF NON-MAGNETIC MATERIAL, COMPRISING, A FLAT WALL OF NON-MAGNETIC MATERIAL, A FIRST MAGNETIC MEMBER ROTATIVELY MOUNTED ON ONE SIDE OF SAID FLAT WALL WITH ITS AXIS OF ROTATION SUBSTANTIALLY PERPENDICULAR TO SAID WALL, SAID FIRST MENBER HAVING POLES IN THE FACE THEREOF ADJACENT AND PARALLEL TO SAID ONE SIDE, SAID POLES BEING ARRANGED RADIALLY EQUIDISTANT FROM ITS AXIS OF ROTATION, AND A SECOND MAGNETIC MEMBER ROTATIVELY MOUNTED ON THE OTHER SIDE OF SAID FLAT WALL IN SUBSTANTIALLY CO-AXIAL RELATION WITH SAID FIRST MEMBER, SAID SECOND MAGNETIC MEMBER HAVING A CIRCUMFERENTIAL OUTER SURFACE AT A RADIAL DISTANCE FROM ITS AXIS OF ROTATION LESS THAN THE RADIAL DISTANCE OF THE POLES OF SAID FIRST MEMBER FROM ITS AXIS OF ROTATION, AND POLES IN SAID CIRCUMFERENTIAL SURFACE, WHEREBY SAID MAGNETS ARE MAGNETICALLY COUPLED WITH A HIGH TORQUE LOW THRUST RATIO.
Claim 2
Dependent Claim
149 words
A MAGNETIC COUPLING ADAPTED TO TRANSMIT ROTARY MOTION THROUGH A FLAT WALL OF NON-MAGNETIC MATERIAL, COMPRISING, A FLAT WALL OF NON-MAGNETIC MATERIAL, A FIRST MAGNETIC MEMBER ROTATIVELY MOUNTED ON ONE SIDE OF SAID FLAT WALL WITH ITS AXIS OF ROTATION SUBSTANTIALLY PERPENDICULAR TO SAID WALL, SAID FIRST MENBER HAVING POLES IN THE FACE THEREOF ADJACENT AND PARALLEL TO SAID ONE SIDE, SAID POLES BEING ARRANGED RADIALLY EQUIDISTANT FROM ITS AXIS OF ROTATION, AND A SECOND MAGNETIC MEMBER ROTATIVELY MOUNTED ON THE OTHER SIDE OF SAID FLAT WALL IN SUBSTANTIALLY CO-AXIAL RELATION WITH SAID FIRST MEMBER, SAID SECOND MAGNETIC MEMBER HAVING A CIRCUMFERENTIAL OUTER SURFACE AT A RADIAL DISTANCE FROM ITS AXIS OF ROTATION LESS THAN THE RADIAL DISTANCE OF THE POLES OF SAID FIRST MEMBER FROM ITS AXIS OF ROTATION, AND POLES IN SAID CIRCUMFERENTIAL SURFACE, WHEREBY SAID MAGNETS ARE MAGNETICALLY COUPLED WITH A HIGH TORQUE LOW THRUST RATIO.
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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) | 1969-04-25 | 1969-10-25 | 1970-04-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-04-25 | 1973-10-25 | 1974-04-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-04-25 | 1977-10-25 | 1978-04-26 | $7700.00 | Window Closed / Lapsed |