US2665320A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Metal vaporizing crucible
Assignee: National Research Corp
•
Filing: 1949-09-22
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Granted: 1954-01-05
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Expires: 1969-09-22
Abstract
No abstract record available.
Inventors
- 👤 Jr Earl E Chadsey
- 👤 Philip J Clough
- 👤 Godley Philip
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 16:06
CPC Classifications
C; C23; C23C; C23C14/00; C23C14/22; C23C14/24; C23C14/243; C23C14/26; H; H05; H05B; H05B6/00; H05B6/02; H05B6/22; H05B6/24; H05B6/26
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
176 words
FOR USE IN AN APPARATUS FOR THE VAPOR DEPOSITION COATING OF A FLEXIBLE SUBSTRATE BY MOVING THE SUBSTRATE PAST A SOURCE OF METAL VAPORS POSITIONED IN AN EVACUATED COATING CHAMBER, A CRUCIBLE FOR HOLDING MOLTEN METAL TO BE EVAPORATED, SAID CRUCIBLE COMPRISING A MATERIAL SUBSTANTIALLY INERT TO SUCH MOLTEN METAL AND WETTABLE BY SAID MOLTEN METAL, SAID CRCUIBLE HAVING A MAIN BODY PORTION FOR HOLDING SAID MOLTEN METAL, LIP MEANS EXTENDING FROM SAID MAIN BODY PORTION ADJACENT THE UPPER EDGE THEREOF, AND MEANS FOR HEATING SAID CRUCIBLE TO THEREBY RAISE THE TEMPERATURE OF SAID MOLTEN METAL IN SAID CRUCIBLE TO ABOVE 1200* C., SAID HEATING MEANS COMPRISING A FIRST HEATING PORTION FOR HEATING SAID CRUCIBLE BODY AND A SECOND HEATING PORTION FOR HEATING SAID LIP MEANS, SAID SECOND HEATING PORTION BEING ARRANGED TO APPLY A SUFFICIENT HEAT INPUT TO SAID LIP MEANS TO MAINTAIN SAID LIP MEANS AT A SUBSTANTAILLY HIGHER TEMPERATURE THAN THE TEMPERATURE OF THE MOLTEN METAL IN THE CRUCIBLE SO THAT SAID LIP MEANS SERVES TO VAPORIZE ALL MOLTEN METAL REACHING SAID LIP.
Claim 2
Dependent Claim
176 words
FOR USE IN AN APPARATUS FOR THE VAPOR DEPOSITION COATING OF A FLEXIBLE SUBSTRATE BY MOVING THE SUBSTRATE PAST A SOURCE OF METAL VAPORS POSITIONED IN AN EVACUATED COATING CHAMBER, A CRUCIBLE FOR HOLDING MOLTEN METAL TO BE EVAPORATED, SAID CRUCIBLE COMPRISING A MATERIAL SUBSTANTIALLY INERT TO SUCH MOLTEN METAL AND WETTABLE BY SAID MOLTEN METAL, SAID CRCUIBLE HAVING A MAIN BODY PORTION FOR HOLDING SAID MOLTEN METAL, LIP MEANS EXTENDING FROM SAID MAIN BODY PORTION ADJACENT THE UPPER EDGE THEREOF, AND MEANS FOR HEATING SAID CRUCIBLE TO THEREBY RAISE THE TEMPERATURE OF SAID MOLTEN METAL IN SAID CRUCIBLE TO ABOVE 1200* C., SAID HEATING MEANS COMPRISING A FIRST HEATING PORTION FOR HEATING SAID CRUCIBLE BODY AND A SECOND HEATING PORTION FOR HEATING SAID LIP MEANS, SAID SECOND HEATING PORTION BEING ARRANGED TO APPLY A SUFFICIENT HEAT INPUT TO SAID LIP MEANS TO MAINTAIN SAID LIP MEANS AT A SUBSTANTAILLY HIGHER TEMPERATURE THAN THE TEMPERATURE OF THE MOLTEN METAL IN THE CRUCIBLE SO THAT SAID LIP MEANS SERVES TO VAPORIZE ALL MOLTEN METAL REACHING SAID LIP.
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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) | 1957-01-04 | 1957-07-06 | 1958-01-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1961-01-04 | 1961-07-06 | 1962-01-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1965-01-04 | 1965-07-06 | 1966-01-05 | $7700.00 | Window Closed / Lapsed |