US3147328A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Electric glassmaking furnace
Assignee: VERRERIES PHOCHET ET DU COURVA
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Filing: 1962-05-07
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Granted: 1964-09-01
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Expires: 1982-05-07
Abstract
No abstract record available.
Inventors
- 👤 Jacques Maric Yves Le Cl Bussy
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 20:14
CPC Classifications
C; C03; C03B; C03B5/00; C03B5/16; C03B5/225; C03B5/02; C03B5/027; C03B5/0275; C03B5/42; Y; Y10; Y10S; Y10S65/00; Y10S65/04
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
126 words
AN ELECTRIC GLASSMAKING FURNACE COMPRISING A TROUGH HAVING AN INNER WALL DEFINING A GLASS-MELTING CHAMBER, AT LEAST TWO LATERAL MELTING ELECTRODES SPACED FROM SAID INNER WALL AND DEFINING BETWEEN THESE ELECTRODES A REGION WHICH IS THE HOTTEST REGION OF THE FURNACE, THE PERIPHERY OF THIS REGION BEING NEARER FROM THE CENTER OF THE FURNACE THAN FROM SAID INNER WALL; AND A GLASS-REFINING DEVICE POSITIONED BETWEEN SAID ELECTRODES, INSIDE SAID REGION; SAID REFINING DEVICE COMPRISING: CURRENT-CONDUCTING MEANS ARRANGED BETWEEN THE ELECTRODES, AT A SHORT DISTANCE THEREFROM AND SURROUNDING A REFINING CAVITY, FINEGLASS DISCHARGE MEANS COMMUNICATING WITH SAID CAVITY AND WITH THE OUTSIDE OF SAID TROUGH, AND BUBBLE CONDUIT MEANS COMMUNICATING WITH SAID CAVITY AND WITH THE PORTION OF THE GLASS-MELTING CHAMBER WHICH IS OUTSIDE SAID REFINING DEVICE.
Claim 2
Dependent Claim
126 words
AN ELECTRIC GLASSMAKING FURNACE COMPRISING A TROUGH HAVING AN INNER WALL DEFINING A GLASS-MELTING CHAMBER, AT LEAST TWO LATERAL MELTING ELECTRODES SPACED FROM SAID INNER WALL AND DEFINING BETWEEN THESE ELECTRODES A REGION WHICH IS THE HOTTEST REGION OF THE FURNACE, THE PERIPHERY OF THIS REGION BEING NEARER FROM THE CENTER OF THE FURNACE THAN FROM SAID INNER WALL; AND A GLASS-REFINING DEVICE POSITIONED BETWEEN SAID ELECTRODES, INSIDE SAID REGION; SAID REFINING DEVICE COMPRISING: CURRENT-CONDUCTING MEANS ARRANGED BETWEEN THE ELECTRODES, AT A SHORT DISTANCE THEREFROM AND SURROUNDING A REFINING CAVITY, FINEGLASS DISCHARGE MEANS COMMUNICATING WITH SAID CAVITY AND WITH THE OUTSIDE OF SAID TROUGH, AND BUBBLE CONDUIT MEANS COMMUNICATING WITH SAID CAVITY AND WITH THE PORTION OF THE GLASS-MELTING CHAMBER WHICH IS OUTSIDE SAID REFINING DEVICE.
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) | 1967-09-01 | 1968-03-02 | 1968-09-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-09-01 | 1972-03-02 | 1972-09-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-09-01 | 1976-03-02 | 1976-09-01 | $7700.00 | Window Closed / Lapsed |