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. 03, 2012
Filed:
Aug. 07, 2008
Wei Luo, Boalsburg, PA (US);
Paul Aloysius Meyer, McVeytown, PA (US);
Wei Luo, Boalsburg, PA (US);
Paul Aloysius Meyer, McVeytown, PA (US);
GE Inspection Technologies, LP, Lewistown, PA (US);
Abstract
In one embodiment of the invention, a composition for a damping wedge in an ultrasonic probe having a wedge body is disclosed, the composition including: a viscoelastic material having a ratio of the imaginary part to the real part of the modulus of elasticity of at least about 5% and an acoustic impedance less than that of the wedge body; a filament-shaped filler in an effective amount to provide good dispersability in the viscoelastic material and to substantially match the acoustic impedance of the damping wedge to the wedge body; and a viscosity enhancer in an effective amount to increase the viscosity of the composition to maintain a homogenous distribution of the filament-shaped filler by preventing the filament-shaped filler from settling.