US2800753A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Diamond cut-off wheel
Assignee: Saint Gobain Abrasives Inc
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Filing: 1954-01-27
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Granted: 1957-07-30
•
Expires: 1974-01-27
Abstract
No abstract record available.
Inventors
- 👤 Gunnar E Hollstrom
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 08:02
CPC Classifications
B; B24; B24D; B24D18/00; B24D18/0009; B24D5/00; B24D5/12; Y; Y10; Y10S; Y10S428/00; Y10S428/922; Y10S428/9265; Y10S428/932; Y10T; Y10T428/00; Y10T428/12; Y10T428/12014; Y10T428/12028; Y10T428/12063; Y10T428/12139
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
158 words
A DIAMOND CUT-OFF WHEEL COMPRISING A CIRCULAR METAL CENTER HAVING A PERIPHERY WHICH COMPRISES TWO CYLINDRICAL PORTIONS AND A PERIPHERAL GROOVE, SAID CYLINDRICAL PORTIONS BEING OUTSIDE OF SAID PERIPHERAL GROOVE AND MERGING WITH THE SIDES OF THE METAL CENTER, THE SIDES OF SAID GROOVE BEING BETWEEN THE LIMITS OF STRAIGHT SIDED TO UNDERCUT TO THE EXTENT OF UP TO FOUR UNITS FOR EACH TEN UNITS DEPTH OF GROOVE, A HOMOGENEOUS PLATING OF BRONZE AT LEAST 50 MOLECULES THICK ON THE ENTIRE PREIPHERY OF THE METAL CENTER INCLUDING THE TWO CYLINDRICAL PORTIONS AND ALL OF THE GROOVE AND A SINTERED BRONZE BONDED DIAMOND ABRASIVE ANNULUS SINTERED TO THE BRONZE PLATING ON THE ENTIRE PERIPHERY OF THE METAL CENTER INCLUDING THE TWO CYLINDRICAL PORTIONS AND ALL OF THE GROOVE, SAID SINTERED BRONZE BONDED DIAMOND ABRASIVE ANNULUS FORMING THE PERIPHERY OF THE WHEEL AND HAVING AN INWARDLY EXTENDING PORTION IN SAID GROOVE SINTERED TO THE BOTTOM AND SIDES OF THE GROOVE.
Claim 2
Dependent Claim
158 words
A DIAMOND CUT-OFF WHEEL COMPRISING A CIRCULAR METAL CENTER HAVING A PERIPHERY WHICH COMPRISES TWO CYLINDRICAL PORTIONS AND A PERIPHERAL GROOVE, SAID CYLINDRICAL PORTIONS BEING OUTSIDE OF SAID PERIPHERAL GROOVE AND MERGING WITH THE SIDES OF THE METAL CENTER, THE SIDES OF SAID GROOVE BEING BETWEEN THE LIMITS OF STRAIGHT SIDED TO UNDERCUT TO THE EXTENT OF UP TO FOUR UNITS FOR EACH TEN UNITS DEPTH OF GROOVE, A HOMOGENEOUS PLATING OF BRONZE AT LEAST 50 MOLECULES THICK ON THE ENTIRE PREIPHERY OF THE METAL CENTER INCLUDING THE TWO CYLINDRICAL PORTIONS AND ALL OF THE GROOVE AND A SINTERED BRONZE BONDED DIAMOND ABRASIVE ANNULUS SINTERED TO THE BRONZE PLATING ON THE ENTIRE PERIPHERY OF THE METAL CENTER INCLUDING THE TWO CYLINDRICAL PORTIONS AND ALL OF THE GROOVE, SAID SINTERED BRONZE BONDED DIAMOND ABRASIVE ANNULUS FORMING THE PERIPHERY OF THE WHEEL AND HAVING AN INWARDLY EXTENDING PORTION IN SAID GROOVE SINTERED TO THE BOTTOM AND SIDES OF THE GROOVE.
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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) | 1960-07-29 | 1961-01-28 | 1961-07-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1964-07-29 | 1965-01-28 | 1965-07-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1968-07-29 | 1969-01-28 | 1969-07-30 | $7700.00 | Window Closed / Lapsed |