US3265801A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Electron beam furnaces
Assignee: Associated Electrical Industries Ltd
•
Filing: 1961-08-22
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Granted: 1966-08-09
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Expires: 1981-08-22
Abstract
No abstract record available.
Inventors
- 👤 Eaton Norman Frank
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 22:10
CPC Classifications
H; H01; H01J; H01J37/00; H01J37/30; H01J37/305; B; B23; B23K; B23K15/00; H01J37/02; H01J37/16; Y; Y10; Y10S; Y10S164/00; Y10S164/05
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
118 words
AN ELECTRON BEAM FURNACE COMPRISING AN EVACUATED MELTING CHAMBER, AN INGOT MOULD, MEANS FOR SUPPORTING A VERTICALLY EXTENDING FEED ROD OVER THE INGOT IN SAID MELTING CHAMBER, A PLURALITY OF ELECTRON GUNS LOCATED IN A SEPARATE ELECTRON GUN CHAMBER AND DIRECTED DOWNWARDLY, SAID ELECTRON GUN CHAMBER BEING ADJACENT TO SAID MELTING CHAMBER, MEANS FOR EVACUATING SAID GUN CHAMBER TO A LOWER PRESSURE THAN THE MELTING CHAMBER, BEAM DUCTS CONNECTING THE MELTING CHAMBER AND THE ELECTRON GUN CHAMBER, THERE BEING A BEAM DUCT ASSOCIATED WITH EACH ELECTRON GUN THROUGH WHICH THE BEAM PASSES INTO THE MELTING CHAMBER AND BEAM DEFLECTING MEANS ASSOCIATED WITH EACH ELECTRON GUN WHEREBY THE ELECTRON BEAMS ENTERING THE MELTING CHAMBER ARE DEFLECTED OUT OF ALIGN-
Claim 2
Dependent Claim
118 words
AN ELECTRON BEAM FURNACE COMPRISING AN EVACUATED MELTING CHAMBER, AN INGOT MOULD, MEANS FOR SUPPORTING A VERTICALLY EXTENDING FEED ROD OVER THE INGOT IN SAID MELTING CHAMBER, A PLURALITY OF ELECTRON GUNS LOCATED IN A SEPARATE ELECTRON GUN CHAMBER AND DIRECTED DOWNWARDLY, SAID ELECTRON GUN CHAMBER BEING ADJACENT TO SAID MELTING CHAMBER, MEANS FOR EVACUATING SAID GUN CHAMBER TO A LOWER PRESSURE THAN THE MELTING CHAMBER, BEAM DUCTS CONNECTING THE MELTING CHAMBER AND THE ELECTRON GUN CHAMBER, THERE BEING A BEAM DUCT ASSOCIATED WITH EACH ELECTRON GUN THROUGH WHICH THE BEAM PASSES INTO THE MELTING CHAMBER AND BEAM DEFLECTING MEANS ASSOCIATED WITH EACH ELECTRON GUN WHEREBY THE ELECTRON BEAMS ENTERING THE MELTING CHAMBER ARE DEFLECTED OUT OF ALIGN-
References Cited (Backward Citations)
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1969-08-08 | 1970-02-07 | 1970-08-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-08-08 | 1974-02-07 | 1974-08-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-08-08 | 1978-02-07 | 1978-08-09 | $7700.00 | Window Closed / Lapsed |