US3409729A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Electron beam furnace and method for heating a target therein
Assignee: Airco Inc
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Filing: 1966-12-16
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Granted: 1968-11-05
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Expires: 1986-12-16
Abstract
No abstract record available.
Inventors
- 👤 Charles W Hanks
- 👤 Charles D A Hunt
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 08:18
CPC Classifications
H; H01; H01J; H01J37/00; H01J37/30; H01J37/305
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
111 words
A METHOD FOR HEATING A TARGET IN AN ELECTRON BEAM FURNACE HAVING A FIRST VACUUM CHAMBER FOR CONTAINING THE TARGET, A SECOND VACUUM CHAMBER ADJACENT SAID FIRST VACUUM CHAMBER, AND AN OPENING COMMUNICATING BETWEEN THE FIRST AND SECOND VACUUM CHAMBERS, SAID METHOD COMPRISING PRODUCING AN ELECTRON BEAM IN THE SECOND VACUUM CHAMBER AT A POSITION OFFSET FROM SAID OPENING, DEFLECTING AND FOCUSING THE BEAM OF ELECTRONS IN THE SECOND VACUUM CHAMBER SO AS TO CAUSE SAID BEAM TO PASS THROUGH THE OPENING AND INTO THE FIRST VACUUM CHAMBER, AND DEFLECTING AND FOCUSING THE BEAM OF ELECTRONS IN THE FIRST VACUUM CHAMBER SO AS TO DIRECT THE ELECTRON BEAM AGAINST THE TARGET.
Claim 2
Independent Claim
111 words
A METHOD FOR HEATING A TARGET IN AN ELECTRON BEAM FURNACE HAVING A FIRST VACUUM CHAMBER FOR CONTAINING THE TARGET, A SECOND VACUUM CHAMBER ADJACENT SAID FIRST VACUUM CHAMBER, AND AN OPENING COMMUNICATING BETWEEN THE FIRST AND SECOND VACUUM CHAMBERS, SAID METHOD COMPRISING PRODUCING AN ELECTRON BEAM IN THE SECOND VACUUM CHAMBER AT A POSITION OFFSET FROM SAID OPENING, DEFLECTING AND FOCUSING THE BEAM OF ELECTRONS IN THE SECOND VACUUM CHAMBER SO AS TO CAUSE SAID BEAM TO PASS THROUGH THE OPENING AND INTO THE FIRST VACUUM CHAMBER, AND DEFLECTING AND FOCUSING THE BEAM OF ELECTRONS IN THE FIRST VACUUM CHAMBER SO AS TO DIRECT THE ELECTRON BEAM AGAINST THE TARGET.
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) | 1971-11-05 | 1972-05-06 | 1972-11-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-11-05 | 1976-05-06 | 1976-11-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-11-05 | 1980-05-06 | 1980-11-05 | $7700.00 | Window Closed / Lapsed |