US2886491A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of glass manufacture
Assignee: Individual
•
Filing: 1953-01-12
•
Granted: 1959-05-12
•
Expires: 1973-01-12
Abstract
No abstract record available.
Inventors
- 👤 Jr Joseph Jerger
- 👤 Walter A Fraser
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 19:00
CPC Classifications
C; C03; C03B; C03B5/00; C03B5/16; C03B5/225; C03B2201/00; C03B2201/80; C03B2201/86; Y; Y10; Y10S; Y10S203/00; Y10S203/11
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
121 words
A METHOD FOR REFINING A GLASS-FORMING MATERIAL OF THE TYPE SELECTED FROM THE GROUP CONSISTING OFARSENIC TRISULFIDE, SELENIDE AND TELLURIDE GLASSED CHRACTERIZED ESSENTIALLY BY A SINGLE BOILING RANGE WHICH COMPRISES, CONFINING AND MELTING SAID GLASS-FORMING MATERIAL IN AN ENCLOSED MELTING ZONE MAINTAINED AT A TEMPERATURE BELOW THE BOILING POINT OF SAID MATERIAL, PASSINGSAID MELTED MATERIAL TO A CONFINED BOILING ZONE VIA MEANS ADAPTED TO PREVENT THE BACKWARD FLOW OF VAPORS, HEATING SAID MATERIAL IN SAID BOILING ZONE BY MEANS OF ELECTRICAL CONDUCTION TO ABOVE THE BOILING TEMPERATURE VIA IMMERSED ELECTRODES TO FORM A VAPOR PRODUCT, AND REMOVING SAID VAPOR PRODUCT AND CONDENSING THE SAME TO FORM A LIQUID CONDENSATE AT A TEMPERATURE BETWEEN THE MELTING AND BOILING POINTS OF SAID CONDENSATE.
Claim 2
Independent Claim
121 words
A METHOD FOR REFINING A GLASS-FORMING MATERIAL OF THE TYPE SELECTED FROM THE GROUP CONSISTING OFARSENIC TRISULFIDE, SELENIDE AND TELLURIDE GLASSED CHRACTERIZED ESSENTIALLY BY A SINGLE BOILING RANGE WHICH COMPRISES, CONFINING AND MELTING SAID GLASS-FORMING MATERIAL IN AN ENCLOSED MELTING ZONE MAINTAINED AT A TEMPERATURE BELOW THE BOILING POINT OF SAID MATERIAL, PASSINGSAID MELTED MATERIAL TO A CONFINED BOILING ZONE VIA MEANS ADAPTED TO PREVENT THE BACKWARD FLOW OF VAPORS, HEATING SAID MATERIAL IN SAID BOILING ZONE BY MEANS OF ELECTRICAL CONDUCTION TO ABOVE THE BOILING TEMPERATURE VIA IMMERSED ELECTRODES TO FORM A VAPOR PRODUCT, AND REMOVING SAID VAPOR PRODUCT AND CONDENSING THE SAME TO FORM A LIQUID CONDENSATE AT A TEMPERATURE BETWEEN THE MELTING AND BOILING POINTS OF SAID CONDENSATE.
References Cited (Backward Citations)
US1507120A
Cited
US1873774A
Cited
US1880541A
Cited
US2122469A
Cited
US2262069A
Cited
US2636913A
Cited
US2413037A
Cited
US2585761A
Cited
US2707162A
Cited
US2754346A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1962-05-11 | 1962-11-10 | 1963-05-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-05-11 | 1966-11-10 | 1967-05-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-05-11 | 1970-11-10 | 1971-05-12 | $7700.00 | Window Closed / Lapsed |