Patent US3239592A successfully refreshed from Google Patents.
US3239592A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Arc melting metals
Assignee: Titanium Metals Corp
•
Filing: 1963-07-29
•
Granted: 1966-03-08
•
Expires: 1983-07-29
Abstract
No abstract record available.
Inventors
- 👤 Karl S Snow
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 20:41
CPC Classifications
F; F27; F27D; F27D11/00; F27D11/08; H; H05; H05B; H05B7/00; H05B7/18
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
87 words
IN A METHOD FOR MELTING CONSUMABLE ELECTRODES OF METAL OF DIAMETER GREATER THAN ONE INCH IN AN ARC FURNACE UNDER PRESSURE OF LESS THAN 1 MILLIMETER OF MERCURY ABOSILUTE AND AT A LINEAR MELTING RATE OF LESS THAN 20 INCHES OF INDIVIDUAL ELECTRODE LENGTH PER MINUTE, AND EMPLOYING ALTERNATING CURRENT AS MELTING POWER, THE IMPROVEMENT FOR STABILIZING THE ARC WHICH COMPRISES; INTRODUCING INTO THE MELTING ZONE IN SAID FURNACE DURING MELTING OF SAID ELECTRODES, PELLETS OF POTASSIUM CHLORIDE OF DIAMETER BETWEEN ABOUT 3/16 AND ABOUT 3/4 INCH.
Claim 2
Dependent Claim
87 words
IN A METHOD FOR MELTING CONSUMABLE ELECTRODES OF METAL OF DIAMETER GREATER THAN ONE INCH IN AN ARC FURNACE UNDER PRESSURE OF LESS THAN 1 MILLIMETER OF MERCURY ABOSILUTE AND AT A LINEAR MELTING RATE OF LESS THAN 20 INCHES OF INDIVIDUAL ELECTRODE LENGTH PER MINUTE, AND EMPLOYING ALTERNATING CURRENT AS MELTING POWER, THE IMPROVEMENT FOR STABILIZING THE ARC WHICH COMPRISES; INTRODUCING INTO THE MELTING ZONE IN SAID FURNACE DURING MELTING OF SAID ELECTRODES, PELLETS OF POTASSIUM CHLORIDE OF DIAMETER BETWEEN ABOUT 3/16 AND ABOUT 3/4 INCH.
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) | 1969-03-07 | 1969-09-06 | 1970-03-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-03-07 | 1973-09-06 | 1974-03-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-03-07 | 1977-09-06 | 1978-03-08 | $7700.00 | Window Closed / Lapsed |