US3127461A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of producing curved radially aligned matrix bonded fine particle permanent magnets
Assignee: Individual
•
Filing: 1961-07-10
•
Granted: 1964-03-31
•
Expires: 1981-07-10
Abstract
No abstract record available.
Inventors
- 👤 Jr Walter S Blume
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 19:31
CPC Classifications
H; H01; H01F; H01F41/00; H01F41/02; H01F41/0253; H01F41/0273; H01F41/028
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
104 words
A METHOD OF MAKING A PERMANENTLY MAGNETIZABLE RING WHICH DISPLAYS RADIAL MAGNETIC ALIGNMENT, SAID METHOD COMPRISING, BENDING NORMALLY FLAT PERPENDICULARLY ORIENTED FINE PARTICLE MATRIX BONDED PERMANENT MAGNET MATERIAL INTO THE APPROXIMATE SHAPE OF SAID RING, DISPOSING SAID MATERIAL IN AN ANNULAR DIE CAVITY HAVING INSIDE AND OUTSIDE DIAMETERS EQUAL TO THE DIAMETER OF SAID RING, AND SUBJECTING SAID MATERIAL TO ENDWISE COMPRESSION WHEREBY SAID MATERIAL IS CAUSED TO FLOW AND TO CONFORM TO THE SHAPE OF SAID CAVITY, SAID MATERIAL BEING COHERED TO ITSELF AS AN INCIDENT TO SAID COMPRESSION, THE DIRECTION OF ALIGNMENT OF SAID MATERIAL BEING SUBSTANTIALLY UNCHANGED BY SAID ENDWISE COMPRESSION.
Claim 2
Independent Claim
104 words
A METHOD OF MAKING A PERMANENTLY MAGNETIZABLE RING WHICH DISPLAYS RADIAL MAGNETIC ALIGNMENT, SAID METHOD COMPRISING, BENDING NORMALLY FLAT PERPENDICULARLY ORIENTED FINE PARTICLE MATRIX BONDED PERMANENT MAGNET MATERIAL INTO THE APPROXIMATE SHAPE OF SAID RING, DISPOSING SAID MATERIAL IN AN ANNULAR DIE CAVITY HAVING INSIDE AND OUTSIDE DIAMETERS EQUAL TO THE DIAMETER OF SAID RING, AND SUBJECTING SAID MATERIAL TO ENDWISE COMPRESSION WHEREBY SAID MATERIAL IS CAUSED TO FLOW AND TO CONFORM TO THE SHAPE OF SAID CAVITY, SAID MATERIAL BEING COHERED TO ITSELF AS AN INCIDENT TO SAID COMPRESSION, THE DIRECTION OF ALIGNMENT OF SAID MATERIAL BEING SUBSTANTIALLY UNCHANGED BY SAID ENDWISE COMPRESSION.
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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) | 1967-03-31 | 1967-09-30 | 1968-03-31 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-03-31 | 1971-09-30 | 1972-03-31 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-03-31 | 1975-09-30 | 1976-03-31 | $7700.00 | Window Closed / Lapsed |