US2763570A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Wetting of heat transfer surfaces with liquefied metal heat transfer media
Assignee: Individual
•
Filing: 1953-07-09
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Granted: 1956-09-18
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Expires: 1973-07-09
Abstract
No abstract record available.
Inventors
- 👤 Orson C Shepard
- 👤 Edward P French
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 12:13
CPC Classifications
C; C23; C23C; C23C2/00; C23C2/04; C23C2/10; F; F28; F28F; F28F13/00; F28F13/18; F28F21/00; F28F21/08; F28D; F28D21/00; F28D2021/0019; F28D2021/0054; Y; Y10; Y10S; Y10S376/00; Y10S376/90; Y10S376/904; Y10S376/906
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
127 words
IN A METHOD FOR PROMOTING THE WETTING OF A METALLIC HEAT TRANSFER SURFACE FORMED OF A METERIAL SELECTED FROM THE GROUP CONSISTING OF LOW CARBON AND STAINLESS STEELS, IRONS, MOLYBDENUM TUNGSTEN, TANTALUM, COLUMBIUM, COBALT, TITANIUM, NICKEL AND ZIRCONIUM BY A LIQUEFIED-METAL, HEAT-TRANSFER MATERIAL SELECTED FROM THE GROUP CONSISTING OF LEAD, BISMUTH AND ALLOY MIXTURES OF LEAD AND BISMUTH, THE STEPS COMPRISING SUBJECTING SAID SURFACE TO A VACUUM BELOW ABOUT 1.0 MICRON PRESSURE, HEATING SAID SURFACE TO A TEMPERATURE CONSIDERABLY ABOVE THE MELTING POINT OF SAID LIQUID METAL, REDUCING THE TEMPERATURE OF SAID SURFACE TO A POINT ABOVE THE MELTING POINT OF SAID LIQUID METAL, AND CONTACTING SAID SURFACE WITH THE LIQUID METAL, WHEREBY SAID SURFACES ARE WET THEREBY, SAID VACUUM BEING MAINTAINED CONTINUOUSLY DURING THE ENTIRE PROCESS.
Claim 2
Dependent Claim
127 words
IN A METHOD FOR PROMOTING THE WETTING OF A METALLIC HEAT TRANSFER SURFACE FORMED OF A METERIAL SELECTED FROM THE GROUP CONSISTING OF LOW CARBON AND STAINLESS STEELS, IRONS, MOLYBDENUM TUNGSTEN, TANTALUM, COLUMBIUM, COBALT, TITANIUM, NICKEL AND ZIRCONIUM BY A LIQUEFIED-METAL, HEAT-TRANSFER MATERIAL SELECTED FROM THE GROUP CONSISTING OF LEAD, BISMUTH AND ALLOY MIXTURES OF LEAD AND BISMUTH, THE STEPS COMPRISING SUBJECTING SAID SURFACE TO A VACUUM BELOW ABOUT 1.0 MICRON PRESSURE, HEATING SAID SURFACE TO A TEMPERATURE CONSIDERABLY ABOVE THE MELTING POINT OF SAID LIQUID METAL, REDUCING THE TEMPERATURE OF SAID SURFACE TO A POINT ABOVE THE MELTING POINT OF SAID LIQUID METAL, AND CONTACTING SAID SURFACE WITH THE LIQUID METAL, WHEREBY SAID SURFACES ARE WET THEREBY, SAID VACUUM BEING MAINTAINED CONTINUOUSLY DURING THE ENTIRE PROCESS.
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) | 1959-09-18 | 1960-03-19 | 1960-09-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1963-09-18 | 1964-03-19 | 1964-09-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1967-09-18 | 1968-03-19 | 1968-09-18 | $7700.00 | Window Closed / Lapsed |