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:
Mar. 21, 1989
Filed:
Apr. 06, 1988
Albert J Partington, Winter Springs, FL (US);
Westinghouse Electric Corp., Pittsburgh, PA (US);
Abstract
A turbine blade having a bilaterally symmetrical side entry blade root for attaching the blade to a rotor of a steam turbine. The rotor has a longitudinal rotational axis of symmetry about which the blades rotate. The blades have a foil portion and a platform interposed between the foil portion and the blade roots. The roots are positionable in one of a plurality of complementary shaped grooves circumferentially disposed about the turbine rotor. The root is characterized by at least one pair of lugs symmetrically arranged on opposite sides of the root with each of the lugs having an outer bearing surface for reacting against a complementary opposed mating surface formed in each of the rotor grooves. The bearing surfaces on the lugs are aligned along an arc of a circle centered on the rotor rotational axis.