Patent US3244412A successfully refreshed from Google Patents.
US3244412A
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US
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Apparatus for melting meltable materials
Assignee: Northwestern Steel and Wire Co
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Filing: 1962-10-18
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Granted: 1966-04-05
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Expires: 1982-10-18
Abstract
No abstract record available.
Inventors
- 👤 Charles G Robinson
- 👤 Paul W Dillon
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 18:03
CPC Classifications
B; B23; B23K; B23K26/00; B23K26/12; B23K26/123; B23K26/125; B23K26/127; Y; Y10; Y10S; Y10S266/00; Y10S266/90; Y10S65/00; Y10S65/04
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
148 words
AN APPARATUS FOR MELTING MELTABLE MATERIALS COMPRISING A MELTING VESSEL HAVING SLOPING WALLS COVERGING TOWARD EACH OTHER AT THE LOWER END PORTIONS THEREOF AND HAVING A MELTING AND SETTLING ZONE AT THE LOWER END PORTIONS OF SAID WALLS, A FEEDER PIPE FOR FEEDING A MELTABLE MATERIAL INTO SAID VESSEL TO FLOW ALONG THE SLOPING WALLS THEREOF TO SAID MELTING ZONE, AN OPTICAL POWER CONVERTER AT THE TOP OF SAID VESSEL INCLUDING A LASER HEAD HAVING A ROD OF LASER MATERIAL AND AT LEAST ONE FLASHLIGHT FOCUSING OF SAID ROD, A LENS IN SAID VESSEL SPACED FROM THE END OF SAID ROD AND FOCUSING A BEAM OF LIGHT EMITTED FROM SAID ROD INTO A THE MELTING ZONE, AND A SINGLE OUTLET LEADING DOWNWARDLY FROM SAID VESSEL IN THE FOCAL AREA OF THE BEAM OF LIGHT AND A GREATER CROSS-SECTIONAL AREA THAN THE FOCAL AREA OF THE BEAM OF LIGHT.
Claim 2
Independent Claim
148 words
AN APPARATUS FOR MELTING MELTABLE MATERIALS COMPRISING A MELTING VESSEL HAVING SLOPING WALLS COVERGING TOWARD EACH OTHER AT THE LOWER END PORTIONS THEREOF AND HAVING A MELTING AND SETTLING ZONE AT THE LOWER END PORTIONS OF SAID WALLS, A FEEDER PIPE FOR FEEDING A MELTABLE MATERIAL INTO SAID VESSEL TO FLOW ALONG THE SLOPING WALLS THEREOF TO SAID MELTING ZONE, AN OPTICAL POWER CONVERTER AT THE TOP OF SAID VESSEL INCLUDING A LASER HEAD HAVING A ROD OF LASER MATERIAL AND AT LEAST ONE FLASHLIGHT FOCUSING OF SAID ROD, A LENS IN SAID VESSEL SPACED FROM THE END OF SAID ROD AND FOCUSING A BEAM OF LIGHT EMITTED FROM SAID ROD INTO A THE MELTING ZONE, AND A SINGLE OUTLET LEADING DOWNWARDLY FROM SAID VESSEL IN THE FOCAL AREA OF THE BEAM OF LIGHT AND A GREATER CROSS-SECTIONAL AREA THAN THE FOCAL AREA OF THE BEAM OF LIGHT.
References Cited (Backward Citations)
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US2756044A
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US2935395A
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US2970895A
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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) | 1969-04-04 | 1969-10-04 | 1970-04-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-04-04 | 1973-10-04 | 1974-04-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-04-04 | 1977-10-04 | 1978-04-05 | $7700.00 | Window Closed / Lapsed |