US3086856A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method and device for the successive zone melting and resolidifying of extremely pure substances
Assignee: Siemens and Halske AG
•
Filing: 1954-02-10
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Granted: 1963-04-23
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Expires: 1974-02-10
Abstract
No abstract record available.
Inventors
- 👤 Siebertz Karl
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 02:47
CPC Classifications
C; C30; C30B; C30B13/00; C30B13/28; C30B13/16; C30B13/26; C30B13/32; C30B15/00; C30B15/002; C30B15/02; C30B15/30; Y; Y10; Y10S; Y10S117/00; Y10S117/901; Y10S117/91; Y10S117/917; Y10T; Y10T117/00; Y10T117/10; Y10T117/1024; Y10T117/1032; Y10T117/1036; Y10T117/1076
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
120 words
THE PROCESS OF SUCCESSIVELY ZONE-MELTING AND RESOLIDIFYING A ROD OF FUSIBLE MATERIAL WHICH COMPRISES SUPPORTING SAID ROD AT OPPOSITE END PORTIONS IN A VERTICAL POSITION, APPLYING HEAT TO ESTABLISH A MOLTEN SEGMENTAL ZONE EXTENDING ONLY PART WAY ACROSS THE CROSS SECTION OF THE ROD, THE AXIAL WIDTH AND CROSS-SECTIONAL AREA OF SAID MOLTEN ZONE BEING SUCH THAT THE AMOUNT OF MOLTEN MATERIAL IS LIMITED TO THAT WHICH IS SUPPORTABLE SOLELY BY VIRTUE OF COHESIVE AND ADHESIVE FORCES, AND DISPLACING SAID MOLTEN ZONE IN AN AXIAL DIRECTION ALONG SAID ROD, WHILE AT THE SAME TIME TURNING SAID ROD SO THAT SUBSTANTTIALLY ALL SURFACE PORTIONS THEREOF ARE PROGRESSIVELY MELTED, THE MOLTEN ZONE MOVING IN A HELICAL PATH IN AND ALONG SAID BODY.
Claim 2
Dependent Claim
120 words
THE PROCESS OF SUCCESSIVELY ZONE-MELTING AND RESOLIDIFYING A ROD OF FUSIBLE MATERIAL WHICH COMPRISES SUPPORTING SAID ROD AT OPPOSITE END PORTIONS IN A VERTICAL POSITION, APPLYING HEAT TO ESTABLISH A MOLTEN SEGMENTAL ZONE EXTENDING ONLY PART WAY ACROSS THE CROSS SECTION OF THE ROD, THE AXIAL WIDTH AND CROSS-SECTIONAL AREA OF SAID MOLTEN ZONE BEING SUCH THAT THE AMOUNT OF MOLTEN MATERIAL IS LIMITED TO THAT WHICH IS SUPPORTABLE SOLELY BY VIRTUE OF COHESIVE AND ADHESIVE FORCES, AND DISPLACING SAID MOLTEN ZONE IN AN AXIAL DIRECTION ALONG SAID ROD, WHILE AT THE SAME TIME TURNING SAID ROD SO THAT SUBSTANTTIALLY ALL SURFACE PORTIONS THEREOF ARE PROGRESSIVELY MELTED, THE MOLTEN ZONE MOVING IN A HELICAL PATH IN AND ALONG SAID BODY.
References Cited (Backward Citations)
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Cited
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US2686864A
Cited
FR1065523A
Cited
US2739088A
Cited
FR1087946A
Cited
US3030194A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1966-04-22 | 1966-10-22 | 1967-04-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-04-22 | 1970-10-22 | 1971-04-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-04-22 | 1974-10-22 | 1975-04-23 | $7700.00 | Window Closed / Lapsed |