US3676095A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Process for producing air blown glass fiber strand mat
Assignee: Owens Corning
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Filing: 1970-06-25
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Granted: 1972-07-11
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Expires: 1990-06-25
Abstract
Abstract A PROCESS OF MAKING A MAT OF GLASS FIBERS WHEREIN A STRAND OF GLASS FIBERS FRICTIONALLY ENGAGES THE SURFACE OF A REVOLVING CYLINDER FROM WHICH THE STRAND IS TANGENTIALLY DISCHARGED ONTO A MOVING CONVEYER. THE STRAND IS CAUSED TO BE RANDOMLY LOOPED UPON THE CONVEYER BY ALTERNATE BLASTS OF AIR WHICH LATERALLY IMPINGE UPON THE STRAND TO THROW THE STRAND IN A LOOPED FASHION FROM SIDE TO SIDE ACROSS THE CONVEYER. HIGH UNIFORM MAT STRENGTHS ARE OBTAINED BY WETTING THE INDIVIDUAL FILAMENTS OF GLASS WITH A WATER SOLUTION OF ORGANOSILANE AND A NONIONIC LUBRICANT, THE PRINCIPAL CONSTITUENT OF THE MOLECULES OF WHICH IS A POLYOXYETHYLENE POLYHYDRIC ALCOHOL CONDENSATE GROUPING.
Inventors
- 👤 Joseph P Stalego
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 08:48
CPC Classifications
C; C03; C03C; C03C25/00; C03C25/10; C03C25/24; C03C25/255
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) | 1975-07-11 | 1976-01-10 | 1976-07-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-07-11 | 1980-01-10 | 1980-07-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-07-11 | 1984-01-10 | 1984-07-11 | $7700.00 | Window Closed / Lapsed |