US3576385A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Electrode for a glass furnace
Assignee: Individual
•
Filing: 1969-07-14
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Granted: 1971-04-27
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Expires: 1989-07-14
Abstract
Abstract A water-cooled electrode is designed especially for a glass furnace. The electrode is a tubular sleeve in which is slidably held a sectionalized core. The electrode can be added to as required since the electrode is slowly consumed by dissolving in the molten glass. The water-cooled feature adds to the life of the electrode and also greatly reduces the rapid deterioration of the furnace wall in the vicinity of the electrode by reducing wall temperatures in that area.
Inventors
- 👤 Philip W Robinson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 01:55
CPC Classifications
H; H05; H05B; H05B3/00; H05B3/02; H05B3/03
Claims Analysis
Total Claims: 9
Claim 1
Independent Claim
117 words
An electrode for a glass furnace comprising: a hollow outer tube transversely disposed within an orifice in a wall of said furnace, said wall having an inner face and an outer face, said tube having a forward end and a rearward end, the forward end of said tube projecting into said furnace beyond the inner face of said wall and the rearward end of said tube extending beyond the outer face of said wall; a core filling the hollow interior of the tube for a portion of the length thereof at the forward end of the electrode, said core being slidable in the tube; and means for circulating a liquid coolant within the tube behind the core.
Claim 2
Dependent Claim
117 words
An electrode for a glass furnace comprising: a hollow outer tube transversely disposed within an orifice in a wall of said furnace, said wall having an inner face and an outer face, said tube having a forward end and a rearward end, the forward end of said tube projecting into said furnace beyond the inner face of said wall and the rearward end of said tube extending beyond the outer face of said wall; a core filling the hollow interior of the tube for a portion of the length thereof at the forward end of the electrode, said core being slidable in the tube; and means for circulating a liquid coolant within the tube behind the core.
Claim 3
Dependent Claim
17 words
An electrode according to claim 1 in which the tube comprises a plurality of sections connected together.
Claim 4
Dependent Claim
18 words
An electrode according to claim 1 in which the core comprises a plurality of lengths of solid rod.
Claim 5
Dependent Claim
19 words
An electrode according to claim 1 which also comprises means for detachably connecting an electrical conductor to the tube.
Claim 6
Dependent Claim
29 words
An electrode according to claim 1 in which the last mentioned means includes a detachable coupling mounted on the tube and providing connections for supply and exhaust of coolant.
Claim 7
Dependent Claim
26 words
An electrode according to claim 1 (in combination with a furnace wall) in which the electrode is slidably mounted within the orifice in said furnace wall.
Claim 8
Dependent Claim
67 words
An electrode according to claim 1 (in combination with a wall of a glass-melting furnace, the electrode projecting beyond the inner face of the wall into the furnace, with the portion containing coolant extending beyond said) wherein the rearward end of the core is beyond the inner face of the wall whereby the portion of the tube containing coolant extends beyond the inner face of the wall.
Claim 9
Dependent Claim
101 words
An electrode according to claim 1 (in combination with the sidewall of a glass-melting furnace through which wall the electrode projects with the coolant-filled portion extending into the furnace beyond the inner face of the wall) wherein the hollow outer tube projects into said furnace through an orifice in a sidewall thereof and the rearward end of the core disposed within said tube is beyond the inner face of said sidewall; and the circulating means circulating coolant at a rate to chill a body of glass around the electrode adjoining the inner face of the wall to a temperature below melting.
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) | 1974-04-26 | 1974-10-26 | 1975-04-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-04-26 | 1978-10-26 | 1979-04-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-04-26 | 1982-10-26 | 1983-04-27 | $7700.00 | Window Closed / Lapsed |