Method for regenerating gas turbine blade and gas turbine blade regenerating apparatus

Number of patents in Portfolio can not be more than 2000

United States of America Patent

PATENT NO 8876978
SERIAL NO

12865596

Stats

ATTORNEY / AGENT: (SPONSORED)

Importance

Loading Importance Indicators... loading....

Abstract

See full text

An object is to reduce changes in mechanical properties of a gas turbine blade base material during repair or regeneration of a gas turbine blade. For this purpose, a gas turbine blade after being operated is washed by being immersed into a strong alkaline washing solution, and the gas turbine blade after being washed with the strong alkaline washing solution is washed with water. The gas turbine blade after being washed with water is then washed by being immersed into a weak acid washing solution, and the gas turbine blade after being washed with the weak acid washing solution is subjected to heat treatment. The gas turbine blade after the heat treatment is then immersed into a strong acid washing solution, whereby the coating formed on the surface of the gas turbine blade is removed.

Loading the Abstract Image... loading....

First Claim

See full text

Family

Loading Family data... loading....

Patent Owner(s)

Patent OwnerAddress
MITSUBISHI POWER LTDYOKOHAMA KANAGAWA 220-8401

International Classification(s)

Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Haruna, Rumi Hyogo-ken, JP 1 9
Kawakami, Tetsuji Hyogo-ken, JP 46 394
Koshiro, Ikumasa Nagasaki-ken, JP 14 20
Uemura, Yoshitaka Hyogo-ken, JP 28 313

Cited Art Landscape

Load Citation

Patent Citation Ranking

Forward Cite Landscape

Load Citation

Maintenance Fees

Fee Large entity fee small entity fee micro entity fee due date
11.5 Year Payment $7400.00 $3700.00 $1850.00 May 4, 2026
Fee Large entity fee small entity fee micro entity fee
Surcharge - 11.5 year - Late payment within 6 months $160.00 $80.00 $40.00
Surcharge after expiration - Late payment is unavoidable $700.00 $350.00 $175.00
Surcharge after expiration - Late payment is unintentional $1,640.00 $820.00 $410.00