Patent US3556741A successfully refreshed from Google Patents.
US3556741A
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US
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Method of keying a carbide workpiece to a drive member
Assignee: Carmet Co
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Filing: 1968-11-20
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Granted: 1971-01-19
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Expires: 1988-11-20
Abstract
Abstract A METHOD OF MECHANICALLY LOCKING A WORK ROOL TO A STEEL DRIVE HUB WHICH INCLUDES BRAZING A CARBIDE GRIT TO THE LATERAL SURFACES OF THE ROLL AND PRESSING THE GRIT INTO THE COOPERATING SURFACE OF THE STEEL DRIVE HUB ELIMINATING ANY VOID BETWEEN THE ROLL AND THE HUB TO LOCK THE ROLL AND HUB IN SUCH RELATION.
Inventors
- 👤 William H Bleecker
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 20:59
CPC Classifications
B; B21; B21B; B21B27/00; B21B2261/00; B21B2261/14; Y; Y10; Y10T; Y10T29/00; Y10T29/49; Y10T29/49544; Y10T29/49547; Y10T29/49549; Y10T29/49826; Y10T29/49885; Y10T29/49886
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1974-01-18 | 1974-07-20 | 1975-01-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-01-18 | 1978-07-20 | 1979-01-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-01-18 | 1982-07-20 | 1983-01-19 | $7700.00 | Window Closed / Lapsed |