US3167674A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Eddy current coupling
Assignee: Emerson Electric Co
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Filing: 1962-02-19
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Granted: 1965-01-26
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Expires: 1982-02-19
Abstract
No abstract record available.
Inventors
- 👤 Jr Richard C Woodward
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 21:56
CPC Classifications
H; H02; H02K; H02K49/00; H02K49/02; H02K49/04; H02K49/043
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
168 words
IN AN EDDY CURRENT COUPLING: A SUPPORT; A NON-ROTARY MAGNETIC MEMBER HAVING A REDUCED HUB AT ONE END ATTACHED TO SAID SUPPORT; AN ANNULAR COIL MOUNTED ON SAID NON-ROTARY MAGNETIC MEMBER; A FIRST ROTARY MAGNETIC MEMBER SUBSTANTIALLY ENCOMPASSING SAID NON-ROTARY MAGNETIC MEMBER AND SAID COIL; SAID NON-ROTARY MAGNETIC MEMBER AND SAID FIRST ROTARY MAGNETIC MEMBER HAVING A PAIR OF OPPOSED ANNULAR SURFACES FOR DEFINING A PATH OF MAGNETIC FLUX BETWEEN OPPOSITE ENDS OF SAID ROTARY MAGNETIC MEMBER VIA SAID NON-ROTARY MAGNETIC MEMBER, SAID PATH BEING ENCOMPASSED BY SAID COIL; A SECOND ROTARY MAGNETIC MEMBER SUBSTANTIALLY ENCOMPASSING SAID FIRST ROTARY MAGNETIC MEMBER; SAID ROTARY MAGNETIC MEMBERS HAVING CORRESPONDING FIRST ENDS EXTENDING IN SIDE-BY-SIDE RELATIONSHIP ABOUT SAID HUB; SEPARATE BEARINGS CARRIED BY SAID HUBS RESPECTIVELY MOUNTING SAID FIRST ENDS FOR ROTATION ABOUT SAID HUB; AND A PAIR OF SHAFTS RESPECTIVELY ATTACHED TO THE OTHER ENDS OF SAID ROTARY MAGNETIC MEMBERS; SAID ROTARY MAGNETIC MEMBERS HAVING GENERALLY CYLINDRICALLY EXTENDING OPPOSED EDDY CURRENT SURFACES FOR CREATING A COUPLING BETWEEN SAID ROTARY MEMBERS.
Claim 2
Dependent Claim
168 words
IN AN EDDY CURRENT COUPLING: A SUPPORT; A NON-ROTARY MAGNETIC MEMBER HAVING A REDUCED HUB AT ONE END ATTACHED TO SAID SUPPORT; AN ANNULAR COIL MOUNTED ON SAID NON-ROTARY MAGNETIC MEMBER; A FIRST ROTARY MAGNETIC MEMBER SUBSTANTIALLY ENCOMPASSING SAID NON-ROTARY MAGNETIC MEMBER AND SAID COIL; SAID NON-ROTARY MAGNETIC MEMBER AND SAID FIRST ROTARY MAGNETIC MEMBER HAVING A PAIR OF OPPOSED ANNULAR SURFACES FOR DEFINING A PATH OF MAGNETIC FLUX BETWEEN OPPOSITE ENDS OF SAID ROTARY MAGNETIC MEMBER VIA SAID NON-ROTARY MAGNETIC MEMBER, SAID PATH BEING ENCOMPASSED BY SAID COIL; A SECOND ROTARY MAGNETIC MEMBER SUBSTANTIALLY ENCOMPASSING SAID FIRST ROTARY MAGNETIC MEMBER; SAID ROTARY MAGNETIC MEMBERS HAVING CORRESPONDING FIRST ENDS EXTENDING IN SIDE-BY-SIDE RELATIONSHIP ABOUT SAID HUB; SEPARATE BEARINGS CARRIED BY SAID HUBS RESPECTIVELY MOUNTING SAID FIRST ENDS FOR ROTATION ABOUT SAID HUB; AND A PAIR OF SHAFTS RESPECTIVELY ATTACHED TO THE OTHER ENDS OF SAID ROTARY MAGNETIC MEMBERS; SAID ROTARY MAGNETIC MEMBERS HAVING GENERALLY CYLINDRICALLY EXTENDING OPPOSED EDDY CURRENT SURFACES FOR CREATING A COUPLING BETWEEN SAID ROTARY MEMBERS.
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) | 1968-01-26 | 1968-07-27 | 1969-01-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-01-26 | 1972-07-27 | 1973-01-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-01-26 | 1976-07-27 | 1977-01-26 | $7700.00 | Window Closed / Lapsed |