US2951771A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method for continuously fabricating an impervious metal coated fibrous glass sheet
Assignee: Owens Corning
•
Filing: 1956-11-05
•
Granted: 1960-09-06
•
Expires: 1976-11-05
Abstract
No abstract record available.
Inventors
- 👤 Charles K Butler
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 22:34
CPC Classifications
C; C03; C03C; C03C25/00; C03C25/10; C03C25/42; C03C25/46; Y; Y10; Y10T; Y10T29/00; Y10T29/49; Y10T29/49801; Y10T428/00; Y10T428/12; Y10T428/12444
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
140 words
A METHOD FOR FABRICATING A FIBROUS GLASS SHEET HAVING AN IMPERVIOUS METAL COATING, SAID METHOD COMPRISING MAINTAINING A POOL OF MOLTEN METAL AT A TEMPERATURE LESS THAN THE FUSION TEMPERATURE OF THE GLASS TO BE COMBINED THEREWITH, LONGITUDINALLY FEEDING A CONTINUOUS SHEET-LIKE MASS OF GLASS FIBERS THROUGH AT LEAST A PORTION OF SAID POOL, APPLYING CONTINUING MECHANICAL PRESSURE IN ADDITION TO THE PRESSURE APPLIED BY THE METAL IN THE POOL AND IN A DIRECTION NORMAL TO THE OPPOSITE MAIN FACES OF SAID MASS OF FIBERS WHILE IMMERSED IN SAID POOL FOR FORCING SOME OF THE METAL IN SAID POOL INTO INTIMATE SURFACE CONTACT WITH AT LEAST THE EXTERIOR ONES OF THE GLASS FIBERS IN SAID MASS AND INTO AND FILLING SURFACE INTERSTICES IN SAID MASS FOR FORMING AN IMPERVIOUS SURFACE LAYER THEREON AND WITHDRAWING SAID MASS CONTINUOUSLY FROM SAID POOL.
Claim 2
Independent Claim
140 words
A METHOD FOR FABRICATING A FIBROUS GLASS SHEET HAVING AN IMPERVIOUS METAL COATING, SAID METHOD COMPRISING MAINTAINING A POOL OF MOLTEN METAL AT A TEMPERATURE LESS THAN THE FUSION TEMPERATURE OF THE GLASS TO BE COMBINED THEREWITH, LONGITUDINALLY FEEDING A CONTINUOUS SHEET-LIKE MASS OF GLASS FIBERS THROUGH AT LEAST A PORTION OF SAID POOL, APPLYING CONTINUING MECHANICAL PRESSURE IN ADDITION TO THE PRESSURE APPLIED BY THE METAL IN THE POOL AND IN A DIRECTION NORMAL TO THE OPPOSITE MAIN FACES OF SAID MASS OF FIBERS WHILE IMMERSED IN SAID POOL FOR FORCING SOME OF THE METAL IN SAID POOL INTO INTIMATE SURFACE CONTACT WITH AT LEAST THE EXTERIOR ONES OF THE GLASS FIBERS IN SAID MASS AND INTO AND FILLING SURFACE INTERSTICES IN SAID MASS FOR FORMING AN IMPERVIOUS SURFACE LAYER THEREON AND WITHDRAWING SAID MASS CONTINUOUSLY FROM SAID POOL.
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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) | 1963-09-06 | 1964-03-07 | 1964-09-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-09-06 | 1968-03-07 | 1968-09-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-09-06 | 1972-03-07 | 1972-09-06 | $7700.00 | Window Closed / Lapsed |