US3564782A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Abrasive belt joint
Assignee: Saint Gobain Abrasives Inc
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Filing: 1967-06-06
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Granted: 1971-02-23
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Expires: 1987-06-06
Abstract
Abstract A JOINT IS FORMED IN A THICK, RESILIENTLY COMPRESSIBLE MATERIAL BY UNDERCUTTING AT LEAST ONE END OF THE MATERIAL TO PROVIDE A GREATER LENGTH AT THE TOP SURFACE THAN AT THE BOTTOM AND THEN COMPRESSING THE ADDITIONAL MATERIAL CONTAINED IN SUCH GREATER LENGTH BEFORE JOINING THE UNDERCUT END TO THE OTHER END OF SUCH MATERIAL. THIS RESULTS IN A GREATER DENSITY OF MATERIAL AT THE TOP SURFACE OF THE JOINT AND AS THE JOINT PASSES OVER A SMALL ROLL OR THE LIKE, THE COMPRESSED MATERIAL EXPANDS AND KEEPS THE JOINT FROM GAPPING AT THE TOP SURFACE THEREOF.
Inventors
- 👤 George L Haywood
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 21:10
CPC Classifications
B; B24; B24D; B24D11/00; B24D11/06
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) | 1974-02-22 | 1974-08-24 | 1975-02-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-02-22 | 1978-08-24 | 1979-02-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-02-22 | 1982-08-24 | 1983-02-23 | $7700.00 | Window Closed / Lapsed |