Patent US3342970A successfully refreshed from Google Patents.
US3342970A
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Apparatus for crucible-free zone melting
Assignee: Siemens Schuckertwerke AG
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Filing: 1965-02-04
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Granted: 1967-09-19
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Expires: 1985-02-04
Abstract
No abstract record available.
Inventors
- 👤 Emeis Reimer
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 21:28
CPC Classifications
C; C30; C30B; C30B13/00; C30B13/16; C30B13/20; H; H05; H05B; H05B6/00; H05B6/02; H05B6/22; H05B6/30; Y; Y10; Y10T; Y10T117/00; Y10T117/10; Y10T117/1024; Y10T117/1076; Y10T117/1088
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
78 words
IN APPARATUS FOR CRUCIBLE-FREE ZONE MELTING OF A CRYSTALLINE ROD, AN INDUCTION HEATING COIL FOR FORMING A MELTING ZONE IN THE ROD, SAID COIL SURROUNDING AND SPACED FROM THE ROD AND BEING ENERGIZABLE TO PRODUCE AN INDUCTIVE HEATING FIELD AROUND THE ROD, SAID COIL AND ROD BEING RELATIVELY MOVABLE IN THE DIRECTION OF THE ROD AXIS SO AS TO MOVE THE MELTING ZONE ALONG THE ROD, AND A CONCENTRATOR DEVICE HAVING AN OPENING THROUGH WHICH THE ROD EXTENDS,
Claim 2
Dependent Claim
78 words
IN APPARATUS FOR CRUCIBLE-FREE ZONE MELTING OF A CRYSTALLINE ROD, AN INDUCTION HEATING COIL FOR FORMING A MELTING ZONE IN THE ROD, SAID COIL SURROUNDING AND SPACED FROM THE ROD AND BEING ENERGIZABLE TO PRODUCE AN INDUCTIVE HEATING FIELD AROUND THE ROD, SAID COIL AND ROD BEING RELATIVELY MOVABLE IN THE DIRECTION OF THE ROD AXIS SO AS TO MOVE THE MELTING ZONE ALONG THE ROD, AND A CONCENTRATOR DEVICE HAVING AN OPENING THROUGH WHICH THE ROD EXTENDS,
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) | 1970-09-18 | 1971-03-20 | 1971-09-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-09-18 | 1975-03-20 | 1975-09-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-09-18 | 1979-03-20 | 1979-09-19 | $7700.00 | Window Closed / Lapsed |