US2737644A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Position indicator for consumable electrode
Assignee: Titanium Metals Corp
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Filing: 1955-02-21
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Granted: 1956-03-06
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Expires: 1975-02-21
Abstract
No abstract record available.
Inventors
- 👤 Robert J Krieger
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 20:11
CPC Classifications
H; H05; H05B; H05B7/00; H05B7/02; H05B7/10; H05B7/109
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
102 words
IN ARC MELTING APPARATUS IN WHICH AN ELECTRODE IS CONSUMED, THE COMBINATION OF A FURNACE, AN ELECTRODE IN SAID FURNACE HAVING A LONGITUDINAL BORE HOLE EXTENDING FROM THE TOP INTO SAID ELECTRODE AND TERMINATING AT A POINT INTERIORLY THEREOF, LIGHT RESPONSIVE MEANS IN THE LINE OF SIGHT OF THE BORE HOLE IN SAID ELECTRODE, AND SIGNAL MEANS CONNECTED TO AND ACTUATED BY SAID LIGHT RESPONSIVE MEANS, WHEREBY CONSUMPTION OF SAID ELECTRODE TO THE POINT OF TERMINATION OF THE BORE HOLE THEREIN WILL ADMIT LIGHT FROM THE ARC THROUGH THE BORE HOLE TO THE LIGHT RESPONSIVE MEANS WHICH WILL ACTUATE THE SIGNAL MEANS.
Claim 2
Dependent Claim
102 words
IN ARC MELTING APPARATUS IN WHICH AN ELECTRODE IS CONSUMED, THE COMBINATION OF A FURNACE, AN ELECTRODE IN SAID FURNACE HAVING A LONGITUDINAL BORE HOLE EXTENDING FROM THE TOP INTO SAID ELECTRODE AND TERMINATING AT A POINT INTERIORLY THEREOF, LIGHT RESPONSIVE MEANS IN THE LINE OF SIGHT OF THE BORE HOLE IN SAID ELECTRODE, AND SIGNAL MEANS CONNECTED TO AND ACTUATED BY SAID LIGHT RESPONSIVE MEANS, WHEREBY CONSUMPTION OF SAID ELECTRODE TO THE POINT OF TERMINATION OF THE BORE HOLE THEREIN WILL ADMIT LIGHT FROM THE ARC THROUGH THE BORE HOLE TO THE LIGHT RESPONSIVE MEANS WHICH WILL ACTUATE THE SIGNAL MEANS.
References Cited (Backward Citations)
US2428635A
Cited
US2487024A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1959-03-06 | 1959-09-05 | 1960-03-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1963-03-06 | 1963-09-05 | 1964-03-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1967-03-06 | 1967-09-05 | 1968-03-06 | $7700.00 | Window Closed / Lapsed |