US2746729A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method for homogenizing glass
Assignee: PPG Industries Inc
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Filing: 1952-08-05
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Granted: 1956-05-22
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Expires: 1972-08-05
Abstract
No abstract record available.
Inventors
- 👤 Merle M Eakins
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 02:57
CPC Classifications
C; C03; C03B; C03B5/00; C03B5/16; C03B5/18; C03B5/187; C03B5/1875
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
85 words
A METHOD OF STIRRING GLASS COMPRISING THE STEPS OF, CONTINUOUSLY FLOWING MOLTEN GLASS BY GRAVITY THROUGH A STATIONARY SUBSTANTIALLY CCYLINDRICAL CONTAINER AT A RATE TO MAINTAIN THE GLASS WITHIN THE CONTAINER AT A SUBSTANTIALLY CONSTANT LEVEL, IMPARTING A CIRCULAR MOTION TO THE GLASS DURING ITS FLOW THROUGH THE CONTAINER, INTERMITTENTLY INTERRUPTING THE FREE CIRCULAR MOTION OF THE GLASS AT THE INNER PERIPHERY OF THE CYLINDER DURING PASSAGE OF THE GLASS THRERETHROUGH, AND REPEATEDLY SHEARING THE GLASS WITHIN THE AREA ADJACENT THE PERIPHERY OF THE CYLINDER.
Claim 2
Independent Claim
85 words
A METHOD OF STIRRING GLASS COMPRISING THE STEPS OF, CONTINUOUSLY FLOWING MOLTEN GLASS BY GRAVITY THROUGH A STATIONARY SUBSTANTIALLY CCYLINDRICAL CONTAINER AT A RATE TO MAINTAIN THE GLASS WITHIN THE CONTAINER AT A SUBSTANTIALLY CONSTANT LEVEL, IMPARTING A CIRCULAR MOTION TO THE GLASS DURING ITS FLOW THROUGH THE CONTAINER, INTERMITTENTLY INTERRUPTING THE FREE CIRCULAR MOTION OF THE GLASS AT THE INNER PERIPHERY OF THE CYLINDER DURING PASSAGE OF THE GLASS THRERETHROUGH, AND REPEATEDLY SHEARING THE GLASS WITHIN THE AREA ADJACENT THE PERIPHERY OF THE CYLINDER.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1959-05-22 | 1959-11-21 | 1960-05-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1963-05-22 | 1963-11-21 | 1964-05-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1967-05-22 | 1967-11-21 | 1968-05-22 | $7700.00 | Window Closed / Lapsed |