Patent US2828251A successfully refreshed from Google Patents.
US2828251A
Expired / Lapsed
US
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Electrolytic cladding process
Assignee: Horizons Titanium Corp
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Filing: 1953-09-30
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Granted: 1958-03-25
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Expires: 1973-09-30
Abstract
No abstract record available.
Inventors
- 👤 Merle E Sibert
- 👤 Jr John T Burwell
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 13:38
CPC Classifications
C; C25; C25D; C25D3/00; C25D3/66; Y; Y10; Y10S; Y10S428/00; Y10S428/922; Y10S428/9335; Y10S428/934; Y10S428/935; Y10T; Y10T428/00; Y10T428/12; Y10T428/12493; Y10T428/12771; Y10T428/12778; Y10T428/12806; Y10T428/12812
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
245 words
A METHOD OF FORMING AN ELECTRODEPOSITED COATING OF A COATING METAL OF THE GROUP CONSISTING OF TITANIUM, ZIRCONITUM, HAFNIUM, VANADIUM, TANTALUM AND NIOBIUM ON A METAL BASE IN WHICH THE COATING IS BONDED TO THE METAL BASE BY AN ALLOY CONSISTING OF THE BASE METAL AND THE COATING METAL WHICH COMPRISES: PROVIDING AN ANHYDROUS FUSED SALT ELECTROLYTE CONSISTING ESSENTIALLY OF AT LEAST 5% BY WEIGHT OF A HALIDE OF THE COATING METAL AND AT LEAST ONE HALIDE OF THE GROUP CONSISTING OF THE ALKALI METAL HALIDES AND THE ALKALINE EARTH METAL HALIDES, IMMERSING IN SAID MOLTEN ELECTROLYTE A METALLIFEROUS ANODE OF SAID COATING METAL AND A CATHODE OF A BASE METAL DIFFERENT FROM THE COATING METAL AND SELECTED FROM THE GROUP CONSISTING OF METALS HAVING A MELTING POINT OF AT LEAST 1000* C., PASSING AN ALECTROLYZING CURRENT BETWEEN SAID ANODE AND SAID CATHODE SUFFICIENT TO ESTABLISH A CATHODE CURRENT DENSITY OF 25 TO 200 AMPERES PER SQUARE DECIMETER AND TO MAINTAIN A CELL VOLTAGE BELOW THAT A WHICH ANY BATH COMPONENT DECOMPOSES WITH THE EVOLUTION OF A SIGNIFICANT AMOUNT OF A FREE HALOGEN AND CLADDING THE CATHODE WITH AN ALLEY BONDED ADHERENT COATING OF SAID COATING METAL BY MAINTAINING THE ELECTROLYTE TEMPERATURE ABOVE 900*. AND AT LEAST SUFFICIENT TO FORM AN ALLOY BETWEEN THE COATING METAL AND THE BASE METAL AND BELOW THE TEMPERATURE AT WHICH A LIQUID ALLOY FORMS BETWEEN THE BASE METAL AND THE COATING METAL AND NOT ABOVE 1000*C. DURING SAID ELECTROLYSIS.
Claim 2
Independent Claim
245 words
A METHOD OF FORMING AN ELECTRODEPOSITED COATING OF A COATING METAL OF THE GROUP CONSISTING OF TITANIUM, ZIRCONITUM, HAFNIUM, VANADIUM, TANTALUM AND NIOBIUM ON A METAL BASE IN WHICH THE COATING IS BONDED TO THE METAL BASE BY AN ALLOY CONSISTING OF THE BASE METAL AND THE COATING METAL WHICH COMPRISES: PROVIDING AN ANHYDROUS FUSED SALT ELECTROLYTE CONSISTING ESSENTIALLY OF AT LEAST 5% BY WEIGHT OF A HALIDE OF THE COATING METAL AND AT LEAST ONE HALIDE OF THE GROUP CONSISTING OF THE ALKALI METAL HALIDES AND THE ALKALINE EARTH METAL HALIDES, IMMERSING IN SAID MOLTEN ELECTROLYTE A METALLIFEROUS ANODE OF SAID COATING METAL AND A CATHODE OF A BASE METAL DIFFERENT FROM THE COATING METAL AND SELECTED FROM THE GROUP CONSISTING OF METALS HAVING A MELTING POINT OF AT LEAST 1000* C., PASSING AN ALECTROLYZING CURRENT BETWEEN SAID ANODE AND SAID CATHODE SUFFICIENT TO ESTABLISH A CATHODE CURRENT DENSITY OF 25 TO 200 AMPERES PER SQUARE DECIMETER AND TO MAINTAIN A CELL VOLTAGE BELOW THAT A WHICH ANY BATH COMPONENT DECOMPOSES WITH THE EVOLUTION OF A SIGNIFICANT AMOUNT OF A FREE HALOGEN AND CLADDING THE CATHODE WITH AN ALLEY BONDED ADHERENT COATING OF SAID COATING METAL BY MAINTAINING THE ELECTROLYTE TEMPERATURE ABOVE 900*. AND AT LEAST SUFFICIENT TO FORM AN ALLOY BETWEEN THE COATING METAL AND THE BASE METAL AND BELOW THE TEMPERATURE AT WHICH A LIQUID ALLOY FORMS BETWEEN THE BASE METAL AND THE COATING METAL AND NOT ABOVE 1000*C. DURING SAID ELECTROLYSIS.
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) | 1961-03-24 | 1961-09-23 | 1962-03-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-03-24 | 1965-09-23 | 1966-03-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-03-24 | 1969-09-23 | 1970-03-25 | $7700.00 | Window Closed / Lapsed |