Patent US2495956A successfully refreshed from Google Patents.
US2495956A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of producing glass fibers
Assignee: Glass Fibers Inc
•
Filing: 1945-11-13
•
Granted: 1950-01-31
•
Expires: 1965-11-13
Abstract
No abstract record available.
Inventors
- 👤 Everett J Cook
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 01:44
CPC Classifications
C; C03; C03B; C03B37/00; C03B37/01; C03B37/04; C03B37/041; C03B37/02; C03B37/08; C03B37/09; C03B37/091; C03B5/00; C03B5/02; C03B5/021
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
126 words
THE METHOD OF PRODUCING CONTINUOUS GLASS FIBERS OF UNIFORM DIAMETER WHICH COMPRISES, FEEDING GLASS STOCK INTO A HEATING CHAMBER HAVING A PLURALITY OF APERTURES IN ONE HORIZONTAL WALL THEREOF OF CONSIDERABLY LARGER SIZE THAN THE GLASS FIBERS TO BE PRODUCED, HEATING THE GLASS STOCK WITHIN THE CHAMBER BY USE OF HIGH FREQUENCY HEATING TO MAINTAIN A SUPPLY OF MOLTEN GLASS THEREIN OF UNIFORM TEMPERATURE IN THE MASS ADJACENT THE APERTURES, ESTABLISHING A CONSTANT PRESSURE DIFFERENTIAL BETWEEN OPPOSITE SIDES OF THE BODY OF MOLTEN GLASS DISPOSED AGAINST SAID APERTURES OF SUFFICIENT INTENSITY TO CAUSE POSITIVE MOVEMENT OF THE MOLTEN GLASS THROUGH THE PLURALITY OF APERTURES AT A CONSTANT RATE IN SLOWLY MOVING STREAMS ATTENUATING THE EXUDED GLASS STREAMS SOLEY BY A MECHANICAL DEVICE MOVING AT A CON-
Claim 2
Independent Claim
126 words
THE METHOD OF PRODUCING CONTINUOUS GLASS FIBERS OF UNIFORM DIAMETER WHICH COMPRISES, FEEDING GLASS STOCK INTO A HEATING CHAMBER HAVING A PLURALITY OF APERTURES IN ONE HORIZONTAL WALL THEREOF OF CONSIDERABLY LARGER SIZE THAN THE GLASS FIBERS TO BE PRODUCED, HEATING THE GLASS STOCK WITHIN THE CHAMBER BY USE OF HIGH FREQUENCY HEATING TO MAINTAIN A SUPPLY OF MOLTEN GLASS THEREIN OF UNIFORM TEMPERATURE IN THE MASS ADJACENT THE APERTURES, ESTABLISHING A CONSTANT PRESSURE DIFFERENTIAL BETWEEN OPPOSITE SIDES OF THE BODY OF MOLTEN GLASS DISPOSED AGAINST SAID APERTURES OF SUFFICIENT INTENSITY TO CAUSE POSITIVE MOVEMENT OF THE MOLTEN GLASS THROUGH THE PLURALITY OF APERTURES AT A CONSTANT RATE IN SLOWLY MOVING STREAMS ATTENUATING THE EXUDED GLASS STREAMS SOLEY BY A MECHANICAL DEVICE MOVING AT A CON-
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) | 1953-01-30 | 1953-08-01 | 1954-01-31 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1957-01-30 | 1957-08-01 | 1958-01-31 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1961-01-30 | 1961-08-01 | 1962-01-31 | $7700.00 | Window Closed / Lapsed |