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:
Feb. 04, 2003
Filed:
Feb. 07, 2000
Applicant:
Inventor:
Ron McKeighen, Phoenix, AZ (US);
Assignee:
Acoustic Imaging Technologies Corp., Phoenix, AZ (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B32B 2/738 ; H04R 1/700 ;
U.S. Cl.
CPC ...
B32B 2/738 ; H04R 1/700 ;
Abstract
A multilayer backing for an ultrasonic transducer array comprises at least two layers in contact with each other. The first layer is formed from a first composition comprising an epoxy resin base and a powder. The second layer is formed from a second composition comprising an epoxy resin base, a powder, and at least one of a phenolic shell micro-balloon and a plasticizer. The first layer is more rigid than the second layer so that the first layer provides mechanical support for the array, while the second layer provides maximal sound absorbance.