Patent US2494205A successfully refreshed from Google Patents.
US2494205A
Expired / Lapsed
US
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Nickel plating
Assignee: Huntington Alloys Corp
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Filing: 1946-01-05
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Granted: 1950-01-10
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Expires: 1966-01-05
Abstract
No abstract record available.
Inventors
- 👤 Rogge Robert Horace
- 👤 Roehl Edward Judson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 18:13
CPC Classifications
C; C25; C25D; C25D3/00; C25D3/02; C25D3/12
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
153 words
A PROCESS FOR ELECTRODEPOSITING NICKEL DIRECTLY ON ZINC-BASE METAL COMPOSITIONS WHICH COMPRISES ESTABLISHING A BATH HAVING A TEMPERATURE OF ABOUT 100*F. AND A PH WITHIN THE RANGE OF ABOUT 5.3 TO ABOUT 6.2 AND CONTAINING TARTRATE IONS IN AN AMOUNT EQUIVALENT TO A TARTARIC ACID CONCENTRATION OF ABOUT 30 TO ABOUT 60 GRAMS PER LITER, NICKEL IONS AND CHLORIDE IONS IN AMOUNTS EQUIVALENT TO A NICKEL CHLORIDE CONCENTRATION OF ABOUT 20 TO ABOUT 40 GRAMS PER LITER, AMMONIUM IONS EQUIVALENT TO THE AMOUNT OF AMMONIUM HYDROXIDE REQUIRED TO REGULATE THE PH OF SAID BATH WITHIN SAID RANGE, AND THE BALANCE OF THE BATH BEING ESSENTIALLY WATER, SAID BATH BEING SUBSTANTIALLY DEVOID OF SULFATE ION, AND ELECTRODEPOSITING NICKEL FROM SAID BATH AT A CURRENT DENSITY OF ABOUT 10 TO ABOUT 90 AMPERES PER SQUARE FOOT UPON A ZINC-BASE METAL COMPOSITION, WHEREBY A THICK, DUCTILE AND ADHERENT NICKEL PLATING SUBSTANTIALLY FREE FROM STREAKS IS OBTAINED.
Claim 2
Dependent Claim
153 words
A PROCESS FOR ELECTRODEPOSITING NICKEL DIRECTLY ON ZINC-BASE METAL COMPOSITIONS WHICH COMPRISES ESTABLISHING A BATH HAVING A TEMPERATURE OF ABOUT 100*F. AND A PH WITHIN THE RANGE OF ABOUT 5.3 TO ABOUT 6.2 AND CONTAINING TARTRATE IONS IN AN AMOUNT EQUIVALENT TO A TARTARIC ACID CONCENTRATION OF ABOUT 30 TO ABOUT 60 GRAMS PER LITER, NICKEL IONS AND CHLORIDE IONS IN AMOUNTS EQUIVALENT TO A NICKEL CHLORIDE CONCENTRATION OF ABOUT 20 TO ABOUT 40 GRAMS PER LITER, AMMONIUM IONS EQUIVALENT TO THE AMOUNT OF AMMONIUM HYDROXIDE REQUIRED TO REGULATE THE PH OF SAID BATH WITHIN SAID RANGE, AND THE BALANCE OF THE BATH BEING ESSENTIALLY WATER, SAID BATH BEING SUBSTANTIALLY DEVOID OF SULFATE ION, AND ELECTRODEPOSITING NICKEL FROM SAID BATH AT A CURRENT DENSITY OF ABOUT 10 TO ABOUT 90 AMPERES PER SQUARE FOOT UPON A ZINC-BASE METAL COMPOSITION, WHEREBY A THICK, DUCTILE AND ADHERENT NICKEL PLATING SUBSTANTIALLY FREE FROM STREAKS IS OBTAINED.
References Cited (Backward Citations)
US2069566A
Cited
US2351966A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1953-01-09 | 1953-07-11 | 1954-01-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1957-01-09 | 1957-07-11 | 1958-01-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1961-01-09 | 1961-07-11 | 1962-01-10 | $7700.00 | Window Closed / Lapsed |