US3271825A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of conditioning glass fiber strands
Assignee: Owens Corning Canada Inc
•
Filing: 1963-10-03
•
Granted: 1966-09-13
•
Expires: 1983-10-03
Abstract
No abstract record available.
Inventors
- 👤 Dennis William Joseph
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 17:29
CPC Classifications
D; D06; D06C; D06C29/00; D02; D02G; D02G3/00; D02G3/02; D02G3/16; D02G3/18
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
154 words
A METHOD OF TENSIONING AND SPREADING FILAMENTS OF A SIZED GLASS FIBER STRAND TO IMPROVE PERMEABILITY THEREOF FOR SUBSEQUENTLY APPLIED LIQUID MATERIAL, SAID METHOD COMPRISING THE STEPS OF FEEDING THE STRAND UNDER TENSION ALONG A FIRST LINEAR PATH, DEVIATING SAID STRAND FROM SAID FIRST LINEAR PATH INTO A SECOND LINEAR PATH BY MOVING SAID STRAND IN A FIRST ARCUATE PATH 1/8 TO 3/16 INCH IN DIAMETER AND ENGAGING SAID STRAND ALONG SAID FIRST ARCUATE PATH WITH A SMOOTH CONTINUOUS SURFACE, DEVIATING SAID STRAND FROM SAID SECOND LINEAR PATH INTO A THIRD LINEAR PATH BY MOVING SAID SECOND IN A SECOND ARCUATE PATH 1/8 TO 3/16 INCH IN DIAMETER AND ENGAGING SAID STRAND ALONG SAID SECOND ARCUATE PATH WITH A SMOOTH CONTINUOUS SURFACE, MOVING SAID SURFACES AT THE SAME SPEED AS SAID STRAND TO AVOID CREATION OF EXCESS HEAT AND THEREBY EFFECTING A SEPARATION OF THE FILAMENTS IN THE STRAND TO OBTAIN MAXIMUM PERMEABILITY THEREIN.
Claim 2
Independent Claim
154 words
A METHOD OF TENSIONING AND SPREADING FILAMENTS OF A SIZED GLASS FIBER STRAND TO IMPROVE PERMEABILITY THEREOF FOR SUBSEQUENTLY APPLIED LIQUID MATERIAL, SAID METHOD COMPRISING THE STEPS OF FEEDING THE STRAND UNDER TENSION ALONG A FIRST LINEAR PATH, DEVIATING SAID STRAND FROM SAID FIRST LINEAR PATH INTO A SECOND LINEAR PATH BY MOVING SAID STRAND IN A FIRST ARCUATE PATH 1/8 TO 3/16 INCH IN DIAMETER AND ENGAGING SAID STRAND ALONG SAID FIRST ARCUATE PATH WITH A SMOOTH CONTINUOUS SURFACE, DEVIATING SAID STRAND FROM SAID SECOND LINEAR PATH INTO A THIRD LINEAR PATH BY MOVING SAID SECOND IN A SECOND ARCUATE PATH 1/8 TO 3/16 INCH IN DIAMETER AND ENGAGING SAID STRAND ALONG SAID SECOND ARCUATE PATH WITH A SMOOTH CONTINUOUS SURFACE, MOVING SAID SURFACES AT THE SAME SPEED AS SAID STRAND TO AVOID CREATION OF EXCESS HEAT AND THEREBY EFFECTING A SEPARATION OF THE FILAMENTS IN THE STRAND TO OBTAIN MAXIMUM PERMEABILITY THEREIN.
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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) | 1969-09-12 | 1970-03-14 | 1970-09-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-09-12 | 1974-03-14 | 1974-09-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-09-12 | 1978-03-14 | 1978-09-13 | $7700.00 | Window Closed / Lapsed |