The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Nov. 17, 2009
Filed:
Aug. 18, 2005
Philippe Jean-marie Dupin, Scotia, NY (US);
Dennis William Roberts, Schenectady, NY (US);
Andrew John Tomko, Glenville, NY (US);
John Francis Nolan, Cobleskill, NY (US);
Philippe Jean-Marie Dupin, Scotia, NY (US);
Dennis William Roberts, Schenectady, NY (US);
Andrew John Tomko, Glenville, NY (US);
John Francis Nolan, Cobleskill, NY (US);
General Electric Company, Schenectady, NY (US);
Abstract
The temporary fastening system for joining upper and lower shell casings of a turbine to one another for maintenance purposes includes a stud/nut tensioning system employed in lieu of the conventional studs and nuts. Once the turbine is opened up and the inner shell and rotor removed, the upper and lower shell casings are temporarily secured to one another using studs received in registering openings in the horizontal flanges of the upper and lower shell casings and retainer plates serving as a stop for the stud/nut tensioning system. The tensioning system is hydraulically operated and avoids torsional force on the temporary studs. Once measurements are made, the turbine is again reopened and reassembled using the initially removed bolts or a third set of bolts to secure the upper and lower shell casings to one another.