US3121131A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of improving the elasticity of rubber bonded magnets
Assignee: Leyman Corp
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Filing: 1961-05-26
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Granted: 1964-02-11
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Expires: 1981-05-26
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 03:31
CPC Classifications
H; H01; H01F; H01F1/00; H01F1/01; H01F1/03; H01F1/032; H01F1/10; H01F1/11; H01F1/113; H01F1/117; Y; Y10; Y10S; Y10S264/00; Y10S264/58; Y10S264/66; Y10S428/00; Y10S428/90; Y10T; Y10T29/00; Y10T29/49; Y10T29/49002; Y10T29/4902; Y10T29/49075; Y10T29/49076
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
92 words
IN THE PROCESS OF MANUFACTURING PERMANENT MAGNET MATERIAL BY MIXING FINELY DIVIDED PARTICLES OF A PERMANENT MAGNET SUBSTANCE WITH A RUBBER MATRIX, SAID PARTICLES COMPRISING THE MAJOR PROTION BY WEIGHT OF THE RESULTING MIXTURE, WORKING THE MIXTURE INTO RELATIVELY THIN ELONGATED FORM, AND CURING THE RUBBER MATRIX, THE ADDITIONAL STEP WHICH COMPRISES, SUBJECTING HTE MATEIRAL TO ROLLING BETWEEN SPACED ROLLS AFTER SAID RUBBER MATRIX HAS BEEN CURED, THE SPACING BETWEEN SAID ROLLS BEING NOT MORE THAN ABOUT 95% OF THE THICKNESS OF THE MATERIAL, WHREBY THE INTEGRATION OF SAID MATERIAL IS IMPROVED.
Claim 2
Dependent Claim
92 words
IN THE PROCESS OF MANUFACTURING PERMANENT MAGNET MATERIAL BY MIXING FINELY DIVIDED PARTICLES OF A PERMANENT MAGNET SUBSTANCE WITH A RUBBER MATRIX, SAID PARTICLES COMPRISING THE MAJOR PROTION BY WEIGHT OF THE RESULTING MIXTURE, WORKING THE MIXTURE INTO RELATIVELY THIN ELONGATED FORM, AND CURING THE RUBBER MATRIX, THE ADDITIONAL STEP WHICH COMPRISES, SUBJECTING HTE MATEIRAL TO ROLLING BETWEEN SPACED ROLLS AFTER SAID RUBBER MATRIX HAS BEEN CURED, THE SPACING BETWEEN SAID ROLLS BEING NOT MORE THAN ABOUT 95% OF THE THICKNESS OF THE MATERIAL, WHREBY THE INTEGRATION OF SAID MATERIAL IS IMPROVED.
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) | 1967-02-10 | 1967-08-12 | 1968-02-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-02-10 | 1971-08-12 | 1972-02-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-02-10 | 1975-08-12 | 1976-02-11 | $7700.00 | Window Closed / Lapsed |