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:
Aug. 18, 2020
Filed:
May. 04, 2017
Applicants:
John L. Butler, Cohasset, MA (US);
Alexander L. Butler, Braintree, MA (US);
Inventors:
John L. Butler, Cohasset, MA (US);
Alexander L. Butler, Braintree, MA (US);
Assignee:
Image Acoustics, Inc., Cohasset, MA (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B06B 1/06 (2006.01); G10K 9/12 (2006.01);
U.S. Cl.
CPC ...
B06B 1/0603 (2013.01); B06B 1/0618 (2013.01); G10K 9/121 (2013.01);
Abstract
An underwater acoustic transducer that is capable of radiating acoustic energy at low frequencies. A transducer which is a resonant low frequency bender-type transducer driven at its end supports by a piezoelectric stack of material operating with inner and outer parts driven in opposite directions creating a bending motion of a radiating beam, plate or disc. The small piezoelectric motions at the beam supports are magnified by the leveraged motion of the bending beam(s) creating significant output at low frequencies.