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:
Jan. 25, 2011
Filed:
May. 10, 2007
Wesley D. Brown, Jupiter, FL (US);
Wesley D. Brown, Jupiter, FL (US);
Florida Turbine Technologies, Inc., Jupiter, FL (US);
Abstract
A turbine blade with a detached platform in which the platform has a central opening in which the blade is inserted and held in place. The blade includes a root portion with a fir tree configuration to fit within a slot of a rotor disc. The platform includes two legs that also have a fir tree configuration to fit within the slot of the rotor disc. The blade is inserted into the central opening and the fir tree configurations of the blade root and the platform legs form substantially an aligned set of fir trees that fit within the rotor disc slot to retain both the blade and the platform within the slot. The blade is therefore separated from the platform such that thermal stresses are uncoupled. Also, the blade can be made from a different material than is the platform. The centrifugal load applied to the platform is not transferred onto the blade.