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:
Jul. 31, 2001
Filed:
Nov. 12, 1999
Kevin Chin, Houston, TX (US);
Rolls-Royce plc, London, GB;
Abstract
A damping member (,) for positioning between the undersides of the platforms of adjacent turbine blades (,) and the peripheral surface of a disc (,) upon which the turbine blades (,) are mounted. The damping member (,) comprises first, second and third portions (,and,). The first portion (,) simultaneously engages the adjacent blade platforms (,) whereas the second and third portions (,) converge to engage each other at the disc (,) peripheral surface from a spaced apart relationship with each other at their attachment to the first portion (,). Frictional interaction between the second and third portions (,) and the disc (,) peripheral surface provides damping of turbine blade (,) vibration.