US3270466A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Sheet glass bending roll
Assignee: Libbey Owens Ford Glass Co
•
Filing: 1963-11-15
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Granted: 1966-09-06
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Expires: 1983-11-15
Abstract
No abstract record available.
Inventors
- 👤 John E George
- 👤 Jr James T Zellers
- 👤 Roger P King
- 👤 Alfred H Miller
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 18:16
CPC Classifications
B; B24; B24B; B24B5/00; B24B5/02; B24B5/04
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
128 words
A METHOD OF SURFACE FINISHING A CYLINDRICAL SHEET GLASS BENDING ROLL INCLUDING HARD CARBIDE PARTICLES IMBEDDED IN A MATRIX OF RELATIVELY SOFT MATERIAL WITH AN ENDLESS ABRASIVE BELT TRAINED OVER A PAIR OF SPACED PULLEYS AND HAVING DIAMONDS ADHERED THERETO TO FORM AN ABRASIVE SURFACE SUBSTANTIALLY HARDER THAN SAID CARBIDE PARTICLES COMPRISING, ROTATING THE BENDING ROLL ABOUT ITS LONGITUDINAL AXIS, DRIVING SAID ENDLESS ABRASIVE BELT IN CONTACT WITH SAID BENDING ROLL WITH THE REGION OF CONTACT BEING BETWEEN SAID SPACED PULLEYS SO AS TO UNIFORMLY CUT THROUGH SAID CARBIDE PARTICLES AND MATRIX METAL AND CLEANLY REMOVE THE ABRADED MATERIAL, AND SHIFTING SAID BELT BACK AND FORTH ACROSS THE LENGTH OF SAID ROLL TO FORM ON SAID ROLL A RELATIVELY SMOOTH SURFACE OFUNDISTURBED MATERIAL FREEE FROM AN AMORPHOUS LAYER.
Claim 2
Independent Claim
128 words
A METHOD OF SURFACE FINISHING A CYLINDRICAL SHEET GLASS BENDING ROLL INCLUDING HARD CARBIDE PARTICLES IMBEDDED IN A MATRIX OF RELATIVELY SOFT MATERIAL WITH AN ENDLESS ABRASIVE BELT TRAINED OVER A PAIR OF SPACED PULLEYS AND HAVING DIAMONDS ADHERED THERETO TO FORM AN ABRASIVE SURFACE SUBSTANTIALLY HARDER THAN SAID CARBIDE PARTICLES COMPRISING, ROTATING THE BENDING ROLL ABOUT ITS LONGITUDINAL AXIS, DRIVING SAID ENDLESS ABRASIVE BELT IN CONTACT WITH SAID BENDING ROLL WITH THE REGION OF CONTACT BEING BETWEEN SAID SPACED PULLEYS SO AS TO UNIFORMLY CUT THROUGH SAID CARBIDE PARTICLES AND MATRIX METAL AND CLEANLY REMOVE THE ABRADED MATERIAL, AND SHIFTING SAID BELT BACK AND FORTH ACROSS THE LENGTH OF SAID ROLL TO FORM ON SAID ROLL A RELATIVELY SMOOTH SURFACE OFUNDISTURBED MATERIAL FREEE FROM AN AMORPHOUS LAYER.
References Cited (Backward Citations)
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Cited
US2819572A
Cited
US3056243A
Cited
US3157968A
Cited
US3136096A
Cited
US3101577A
Cited
US3136097A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1969-09-05 | 1970-03-07 | 1970-09-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-09-05 | 1974-03-07 | 1974-09-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-09-05 | 1978-03-07 | 1978-09-06 | $7700.00 | Window Closed / Lapsed |