Retrofitting methods and devices for large steam turbines

Number of patents in Portfolio can not be more than 2000

United States of America Patent

PATENT NO 9328612
APP PUB NO 20130156587A1
SERIAL NO

13631882

Stats

ATTORNEY / AGENT: (SPONSORED)

Importance

Loading Importance Indicators... loading....

Abstract

See full text

A method of replacing rotating metal blades of a steam turbine inserted into a rotor having one or more existing grooves for inserting root sections of the metal blades is described, the method including the steps of providing replacement blades having radially inwards directed root sections of fiber-reinforced composite material, changing the shape of the one or more grooves in the rotor to form a cavity for the insertion of the root sections of fiber-reinforced composite material and inserting the replacement blades into the rotor.

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

First Claim

See full text

Family

Loading Family data... loading....

Patent Owner(s)

  • GENERAL ELECTRIC TECHNOLOGY GMBH

International Classification(s)

Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Hunziker, Rolf Dintikon, CH 6 19
Kubel, Sigurd Ehrendingen, CH 3 10

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
7.5 Year Payment $3600.00 $1800.00 $900.00 Nov 3, 2023
11.5 Year Payment $7400.00 $3700.00 $1850.00 Nov 3, 2027
Fee Large entity fee small entity fee micro entity fee
Surcharge - 7.5 year - Late payment within 6 months $160.00 $80.00 $40.00
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