US3079243A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Abrasive grain
Assignee: Saint Gobain Abrasives Inc
•
Filing: 1959-10-19
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Granted: 1963-02-26
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Expires: 1979-10-19
Abstract
No abstract record available.
Inventors
- 👤 Herbert F G Ueltz
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 19:57
CPC Classifications
C; C09; C09K; C09K3/00; C09K3/14; C09K3/1409; C09K3/1418; B; B24; B24D; B24D18/00
Claims Analysis
Total Claims: 3
Claim 1
Independent Claim
122 words
AN ABRASIVE GRAIN MATERIAL RESULTING FROM THE SINTERING OF A CLACINED NATURAL BAUXITE WHICH MATERIAL MAY BE USED FOR SNAGGING OPERATIONS AND THE LIKE COMPRISING PREFORMED SINTERED GRAINS OF THE NATURAL BAUXITE HAVING A SKIN PRODUCED BY SINTERING THE INDIVIDUAL GRAINS, EACH GRAIN HAVING A RANDOM CRYSTAL ORIENTATION THEREIN, A LARGE PROPORTION OF THE CRYSTALS BEING IN THE ORDER OF FROM ABOUT 5 MICRONS TO 30 MICRONS IN SIZE, APPROXIMATELY 50% OF SAID CRYSTALS HAVING A LATH AND 50% HAVING AN EQUIDIMENSIONAL SHAPE, SAID GRAINS BEING EVEN TEXTURED THROUGHOUT AND COMPOSED OF AAL2O3, 3AL2O3.2SIO2 AS IDENTIFIED BY THEIR X-RAY PATTERNS AND GLASS, SAID GLASS BEING PRESENT IN AN INTERSTICIAL REATION TO THE OTHER COMPONENTS, AND SAID GRAIN HAVING A SUBSTANTIALLY ZERO PORPOSITY.
Claim 2
Dependent Claim
122 words
AN ABRASIVE GRAIN MATERIAL RESULTING FROM THE SINTERING OF A CLACINED NATURAL BAUXITE WHICH MATERIAL MAY BE USED FOR SNAGGING OPERATIONS AND THE LIKE COMPRISING PREFORMED SINTERED GRAINS OF THE NATURAL BAUXITE HAVING A SKIN PRODUCED BY SINTERING THE INDIVIDUAL GRAINS, EACH GRAIN HAVING A RANDOM CRYSTAL ORIENTATION THEREIN, A LARGE PROPORTION OF THE CRYSTALS BEING IN THE ORDER OF FROM ABOUT 5 MICRONS TO 30 MICRONS IN SIZE, APPROXIMATELY 50% OF SAID CRYSTALS HAVING A LATH AND 50% HAVING AN EQUIDIMENSIONAL SHAPE, SAID GRAINS BEING EVEN TEXTURED THROUGHOUT AND COMPOSED OF AAL2O3, 3AL2O3.2SIO2 AS IDENTIFIED BY THEIR X-RAY PATTERNS AND GLASS, SAID GLASS BEING PRESENT IN AN INTERSTICIAL REATION TO THE OTHER COMPONENTS, AND SAID GRAIN HAVING A SUBSTANTIALLY ZERO PORPOSITY.
Claim 3
Dependent Claim
27 words
A GRINDING WHEEL FOR SNAGGING STAINLESS STEEL BILLETS AND THE LIKE COMPRISING ABRASIVE GRAINS IN ACCORDANCE WITH CLAIM 11 HELD DISPOSED AND SUPPORTED IN A RESIN BOND.
References Cited (Backward Citations)
US1756425A
Cited
US2725286A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1966-02-25 | 1966-08-27 | 1967-02-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-02-25 | 1970-08-27 | 1971-02-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-02-25 | 1974-08-27 | 1975-02-26 | $7700.00 | Window Closed / Lapsed |