US3309638A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Coil arrangement for improved field uniformity
Assignee: Individual
•
Filing: 1965-05-07
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Granted: 1967-03-14
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Expires: 1985-05-07
Abstract
No abstract record available.
Inventors
- 👤 William V Rausch
- 👤 Calderon Arthur
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 15:22
CPC Classifications
H; H01; H01F; H01F7/00; H01F7/06; H01F7/20; H01F7/202; C; C23; C23C; C23C14/00; C23C14/22; C23C14/24; H01F41/00; H01F41/02; H01F41/04; H01F41/041; H01F41/046
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
99 words
APPARATUS FOR PRODUCING A SUBSTANTIALLY UNIFORM MAGNETIC FIELD IN A PLANAR AREA COMPRISING: A PAIR OF SERIES AIDING ELECTROMAGNETIC COILS HAVING THE SAME AXIS; SAID COILS BEING POSITIONED ADJACENT OPPOSITE SIDES OF THE PLANAR AREA; SAID AXIS LYING IN THE PLANAR AREA; EACH OF SAID COILS HAVING A GREATER DIAMETER IN A DIRECTION PARALLEL TO THE PLANAR AREA THAN IN A DIRECTION PERPENDICULAR TO THE PLANAR AREA; AND SAID COILS BEING CURVED AT LEAST PARTIALLY AROUND SAID OPPOSITE SIDES OF THE PLANAR AREA SO THAT A SURFACE DEFINED BY EACH OF SAID COILS IS PERPENDICULAR TO THE PLANAR AREA.
Claim 2
Dependent Claim
99 words
APPARATUS FOR PRODUCING A SUBSTANTIALLY UNIFORM MAGNETIC FIELD IN A PLANAR AREA COMPRISING: A PAIR OF SERIES AIDING ELECTROMAGNETIC COILS HAVING THE SAME AXIS; SAID COILS BEING POSITIONED ADJACENT OPPOSITE SIDES OF THE PLANAR AREA; SAID AXIS LYING IN THE PLANAR AREA; EACH OF SAID COILS HAVING A GREATER DIAMETER IN A DIRECTION PARALLEL TO THE PLANAR AREA THAN IN A DIRECTION PERPENDICULAR TO THE PLANAR AREA; AND SAID COILS BEING CURVED AT LEAST PARTIALLY AROUND SAID OPPOSITE SIDES OF THE PLANAR AREA SO THAT A SURFACE DEFINED BY EACH OF SAID COILS IS PERPENDICULAR TO THE PLANAR AREA.
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) | 1970-03-13 | 1970-09-12 | 1971-03-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-03-13 | 1974-09-12 | 1975-03-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-03-13 | 1978-09-12 | 1979-03-14 | $7700.00 | Window Closed / Lapsed |