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US4240829A Expired / Lapsed US ⏱️ 0.0 years remaining

Aluminum-base alloy used as material for galvanic protector

Assignee: Individual
•
Filing: 1979-01-25
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Granted: 1980-12-23
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Expires: 1999-01-25
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Abstract

Abstract An aluminum-base alloy used as the material for galvanic protector and consisting essentially of about 0.005 to about 3.5 weight percent gallium, about 0.1 to about 1.0 weight percent magnesium and the balance being essentially aluminum. The alloy is made up of readily available components, affords effective corrosion protection to iron and steel when in contact with aqueous salt solutions of various concentration (from 10 mg/l to a saturated aluminum solution). The alloy exhibits high electrochemical properties, namely: a current density in natural water with a total concentration of salts ranging from 100 to 200 mg/l is 2 ma/dm 2 , and in a saturated calcium sulfate is 10 ma/dm 2 . The electrochemical activity of the alloy is smoothly regulated by the quantitative composition thereof.

Inventors

  • 👤 Evgeny G. Lukin
  • 👤 Jury D. Dunaev
  • 👤 Leonid F. Kozin
  • 👤 Raushan G. Sarmurzina
  • 👤 Svetlana E. Kozhirova
  • 👤 Ergali Ospanov
  • 👤 Irina F. Silukova

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-10-31 20:19
CPC Classifications
C; C22; C22C; C22C21/00; C22C21/06

Claims Analysis

Total Claims: 2
Claim 1
Independent Claim 28 words
An electrochemically active aluminum base alloy consisting essentially of about 0.1 to 3.5 weight percent gallium, about 0.1 to 1.0 weight percent magnesium and the balance essentially aluminum.
Claim 2
Dependent Claim 28 words
An electrochemically active aluminum base alloy consisting essentially of about 0.1 to 3.5 weight percent gallium, about 0.1 to 1.0 weight percent magnesium and the balance essentially aluminum.

References Cited (Backward Citations)

US4098606A Cited
US4107406A Cited

USPTO Annuity & Maintenance Windows

Annuity Stage Window Opens Payment Deadline Surcharge Period Until Estimated Fee Status
3.5 Years (Year 4) 1983-12-23 1984-06-23 1984-12-23 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1987-12-23 1988-06-23 1988-12-23 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 1991-12-23 1992-06-23 1992-12-23 $7700.00 Window Closed / Lapsed

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