US3070841A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method and apparatus for making magnetically anisotropic elongated magnets
Assignee: Goodrich Corp
•
Filing: 1960-12-07
•
Granted: 1963-01-01
•
Expires: 1980-12-07
Abstract
No abstract record available.
Inventors
- 👤 Robert E Schornstheimer
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 23:47
CPC Classifications
H; H01; H01F; H01F41/00; H01F41/02; H01F41/0253; H01F41/0273; B; B29; B29C; B29C48/00; B29C48/022; B29C48/03; B29C48/07; B29C48/08; B29C48/12; B29K; B29K2105/00; B29K2105/06; B29K2105/12; Y; Y10; Y10S; Y10S264/00; Y10S264/58; Y10S425/00; Y10S425/041; Y10S425/123; Y10T; Y10T29/00; Y10T29/49; Y10T29/49002; Y10T29/4902; Y10T29/49075
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
78 words
AN EXTRUSION DIE FOR EFFECTING ORIENTATION INTO GENERALLY PARALLEL RELATIONSHIP OF PLATE-LIKE PARTICLES UNITED BY PLASTIC ELASTOMERIC MATERIAL, THE SAID DIE COMPRISING A RIGID BODY WITH A MATERIAL PASSAGEWAY THERETHROUGH OF SUBSTANTIALLY THE SAME AREA IN EVERY TRANSVERSE SECTION THEREOF AND WITH THE ENTRANCE AND EXIT OPENINGS TO THE PASSAGEWAY HAVING UNEQUAL MAJOR AND MINOR TRANSVERSE DIMENSIONS WITH THE MAJOR DIMENSION OF THE EXIT OPENING DISPOSED AT RIGHT ANGLES, RELATIVE TO THE MAJOR DIMENSION OF THE ENTRANCE OPENING.
Claim 2
Dependent Claim
78 words
AN EXTRUSION DIE FOR EFFECTING ORIENTATION INTO GENERALLY PARALLEL RELATIONSHIP OF PLATE-LIKE PARTICLES UNITED BY PLASTIC ELASTOMERIC MATERIAL, THE SAID DIE COMPRISING A RIGID BODY WITH A MATERIAL PASSAGEWAY THERETHROUGH OF SUBSTANTIALLY THE SAME AREA IN EVERY TRANSVERSE SECTION THEREOF AND WITH THE ENTRANCE AND EXIT OPENINGS TO THE PASSAGEWAY HAVING UNEQUAL MAJOR AND MINOR TRANSVERSE DIMENSIONS WITH THE MAJOR DIMENSION OF THE EXIT OPENING DISPOSED AT RIGHT ANGLES, RELATIVE TO THE MAJOR DIMENSION OF THE ENTRANCE OPENING.
Claim 3
Dependent Claim
140 words
IN THE METHOD OF PRODUCING MAGNETICALLY ANISOTROPIC ELONGATED PERMANENT MAGNETS THE STEPS COMPRISING PROVIDING FINELY-DIVIDED PLATE-LIKE PARTICLES OF MAGNETIZABLE MATERIAL UNITED BY A PLASTIC ELASTOMERIC MATERIAL, FORMING THE ELASTOMERIC MATERIAL WITH THE PARTICLES THEREIN INTO A COMPACT BODY OF GENERALLY RECTANGULAR CROSS SECTION WITH A GREATER DIMENSION IN ONE TRANSVERSE DIRECTION THAN AT RIGHT ANGLES THERETO, AND ALTERING THE CROSS-SECTIONAL SHAPE OF SAID BODY BY REDUCING THE GREATER TRANSVERSE DIMENSION THEREOF THROUGH APPLICATION OF PRESSURE THEREON WHILE PERMITTING INCREASE IN THE LESSER DIMENSION OF THE BODY AND WHILE MAINTAINING THE CROSS-SECTIONAL AREA OF THE BODY SUBSTANTIALLY CONSTANT THEREBY CAUSING SAID PLATELIKE PARTICLES TO TAKE UP POSITIONS IN SAID BODY SUCH THAT THE PLANES OF THE PARTICLES ARE GENERALLY PARALLEL TO THOSE FACES OF THE BODY HAVING THE GREATER TRANSVERSE DIMENSION AFTER SAID ALTERATION OF THE CROSS-SECTIONAL SHAPE OF THE BODY.
Claim 4
Dependent Claim
140 words
IN THE METHOD OF PRODUCING MAGNETICALLY ANISOTROPIC ELONGATED PERMANENT MAGNETS THE STEPS COMPRISING PROVIDING FINELY-DIVIDED PLATE-LIKE PARTICLES OF MAGNETIZABLE MATERIAL UNITED BY A PLASTIC ELASTOMERIC MATERIAL, FORMING THE ELASTOMERIC MATERIAL WITH THE PARTICLES THEREIN INTO A COMPACT BODY OF GENERALLY RECTANGULAR CROSS SECTION WITH A GREATER DIMENSION IN ONE TRANSVERSE DIRECTION THAN AT RIGHT ANGLES THERETO, AND ALTERING THE CROSS-SECTIONAL SHAPE OF SAID BODY BY REDUCING THE GREATER TRANSVERSE DIMENSION THEREOF THROUGH APPLICATION OF PRESSURE THEREON WHILE PERMITTING INCREASE IN THE LESSER DIMENSION OF THE BODY AND WHILE MAINTAINING THE CROSS-SECTIONAL AREA OF THE BODY SUBSTANTIALLY CONSTANT THEREBY CAUSING SAID PLATELIKE PARTICLES TO TAKE UP POSITIONS IN SAID BODY SUCH THAT THE PLANES OF THE PARTICLES ARE GENERALLY PARALLEL TO THOSE FACES OF THE BODY HAVING THE GREATER TRANSVERSE DIMENSION AFTER SAID ALTERATION OF THE CROSS-SECTIONAL SHAPE OF THE BODY.
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) | 1965-12-31 | 1966-07-02 | 1967-01-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-12-31 | 1970-07-02 | 1971-01-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-12-31 | 1974-07-02 | 1975-01-01 | $7700.00 | Window Closed / Lapsed |