US2976177A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method and means for coating of filaments
Assignee: Owens Corning
•
Filing: 1957-04-15
•
Granted: 1961-03-21
•
Expires: 1977-04-15
Abstract
No abstract record available.
Inventors
- 👤 William P Warthen
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 16:55
CPC Classifications
C; C03; C03C; C03C25/00; C03C25/10; C03C25/12; C03C25/20; Y; Y10; Y10S; Y10S118/00; Y10S118/19
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
152 words
THE METHOD OF COATING A CONTINUOUS FILAMENT WITH HEAT-SOFTENABLE MATERIAL COMPRISING CONTINUOUSLY MOVING THE FILAMENT AXIALLY, SUPPLYING MOLTEN COATING MATERIAL IN SURROUNDING RELATION WITH SAID MOVING FILAMENT AT A GIVEN POINT ALONG ITS PATH OF MOTION, SAID MOLTEN MATERIAL BEING SUPPLIED AT A TEMPERATURE AND IN A CONDITION OF FLUIDITY SUCH THAT A TRAILING CHANNEL OF THE COATING MATERIAL IS DRAWN ALONG THE PATH OF SAID FILAMENT BY THE MOVING FILAMENT ITSELF, FORCEFULLY COOLING SAID CHANNEL OF MATERIAL IN A GIVEN ZONE ALONG THE PATH OF THE FILAMENT TO THE EXTENT THANT AN OUTER NON-FLUID TUBE-LIKE SHELL OF THE COATING MATERIAL IS FORMED FOR SAID CHANNEL, RESTRAINING SAID SHELL FROM MOVEMENT WITH SAID FILAMENT, AND REGULATING SUCH COOLING TO MAINTAIN SAID SHELL, WHEREBY SAID SHELL RESTRICTS THE AMOUNT OF FLUID COATING MATERIAL APPLIED TO THE FILAMENT IN SAID ZONE AND THEREBY TO METER THE QUANTITY OF SAID MATERIAL COATED ON SAID FILAMENT.
Claim 2
Independent Claim
152 words
THE METHOD OF COATING A CONTINUOUS FILAMENT WITH HEAT-SOFTENABLE MATERIAL COMPRISING CONTINUOUSLY MOVING THE FILAMENT AXIALLY, SUPPLYING MOLTEN COATING MATERIAL IN SURROUNDING RELATION WITH SAID MOVING FILAMENT AT A GIVEN POINT ALONG ITS PATH OF MOTION, SAID MOLTEN MATERIAL BEING SUPPLIED AT A TEMPERATURE AND IN A CONDITION OF FLUIDITY SUCH THAT A TRAILING CHANNEL OF THE COATING MATERIAL IS DRAWN ALONG THE PATH OF SAID FILAMENT BY THE MOVING FILAMENT ITSELF, FORCEFULLY COOLING SAID CHANNEL OF MATERIAL IN A GIVEN ZONE ALONG THE PATH OF THE FILAMENT TO THE EXTENT THANT AN OUTER NON-FLUID TUBE-LIKE SHELL OF THE COATING MATERIAL IS FORMED FOR SAID CHANNEL, RESTRAINING SAID SHELL FROM MOVEMENT WITH SAID FILAMENT, AND REGULATING SUCH COOLING TO MAINTAIN SAID SHELL, WHEREBY SAID SHELL RESTRICTS THE AMOUNT OF FLUID COATING MATERIAL APPLIED TO THE FILAMENT IN SAID ZONE AND THEREBY TO METER THE QUANTITY OF SAID MATERIAL COATED ON SAID FILAMENT.
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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) | 1964-03-20 | 1964-09-19 | 1965-03-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1968-03-20 | 1968-09-19 | 1969-03-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1972-03-20 | 1972-09-19 | 1973-03-21 | $7700.00 | Window Closed / Lapsed |