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:
Nov. 03, 2015
Filed:
Nov. 09, 2011
Applicant:
Kenneth D. Rolt, Westford, MA (US);
Inventor:
Kenneth D. Rolt, Westford, MA (US);
Assignee:
Airmar Technology Corporation, Milford, NH (US);
Primary Examiner:
Int. Cl.
CPC ...
H04R 17/00 (2006.01); B06B 1/06 (2006.01);
U.S. Cl.
CPC ...
H04R 17/00 (2013.01); B06B 1/0611 (2013.01); B06B 1/0655 (2013.01);
Abstract
An acoustic transducer for producing sonar waves features a piezoelectric structure with a radiating surface. A plurality of elements is attached to the radiating surface, and at least two of the plurality of elements have different acoustic properties. The acoustic transducer is designed for a wider beam angle for a thickness vibration mode while maintaining other desired vibration frequencies, maximum input power and low cost.