Patent US2637649A successfully refreshed from Google Patents.
US2637649A
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Condensing zinc vapor
Assignee: New Jersey Zinc Co
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Filing: 1949-09-02
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Granted: 1953-05-05
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Expires: 1969-09-02
Abstract
No abstract record available.
Inventors
- 👤 Erwin C Handwerk
- 👤 George T Mahler
- 👤 Llewellyn J Held
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 17:18
CPC Classifications
C; C22; C22B; C22B19/00; C22B19/04; C22B19/16; C22B19/18
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
113 words
IN THE PRODUCTION OF METALLIC ZINC VAPOR WHEREIN A HOT GASEOUS PRODUCT IS PRODUCED CONTAINING THE ZINC VAPOR IN ADMIXTURE WITH A DILUENT GAS INCLUDING AN OXIDIZING CONSTITUENT AT A TEMPERATURE WITHIN THE RANGE OF ABOUT 800* TO 1300* C., THE IMPROVEMENT WHICH COMPRISES PREVENTING OXIDATION OF THE ZINC VAPOR BY SAID OXIDIZING CONSTITUENT WITHIN SAID TEMPERATURE RANGE BY INTRODUCING INTO THE HOT GASEOUS PRODUCT AN AMOUNT OF A CRACKABLE HYDROCARBON SUFFICIENT TO PRODUCE BY ITS CRACKING IN SITU THEREIN A FLOATING CLOUD OF INCANDESCENT NASCENT CARBON PARTICLES BUT INSUFFICIENT TO LOWER THE TEMPERATURE OF SAID HOT GASEOUS PRODUCT BELOW 800* C., AND CONDENSING THE RESULTING ZINC VAPOR TO MOLTEN MASSIVE ZINC METAL.
Claim 2
Dependent Claim
113 words
IN THE PRODUCTION OF METALLIC ZINC VAPOR WHEREIN A HOT GASEOUS PRODUCT IS PRODUCED CONTAINING THE ZINC VAPOR IN ADMIXTURE WITH A DILUENT GAS INCLUDING AN OXIDIZING CONSTITUENT AT A TEMPERATURE WITHIN THE RANGE OF ABOUT 800* TO 1300* C., THE IMPROVEMENT WHICH COMPRISES PREVENTING OXIDATION OF THE ZINC VAPOR BY SAID OXIDIZING CONSTITUENT WITHIN SAID TEMPERATURE RANGE BY INTRODUCING INTO THE HOT GASEOUS PRODUCT AN AMOUNT OF A CRACKABLE HYDROCARBON SUFFICIENT TO PRODUCE BY ITS CRACKING IN SITU THEREIN A FLOATING CLOUD OF INCANDESCENT NASCENT CARBON PARTICLES BUT INSUFFICIENT TO LOWER THE TEMPERATURE OF SAID HOT GASEOUS PRODUCT BELOW 800* C., AND CONDENSING THE RESULTING ZINC VAPOR TO MOLTEN MASSIVE ZINC METAL.
References Cited (Backward Citations)
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US1927763A
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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) | 1956-05-04 | 1956-11-03 | 1957-05-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1960-05-04 | 1960-11-03 | 1961-05-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1964-05-04 | 1964-11-03 | 1965-05-05 | $7700.00 | Window Closed / Lapsed |