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:
Dec. 26, 1978
Filed:
May. 12, 1977
Applicant:
Inventor:
Kenneth P Geohegan, Jr, Catonsville, MD (US);
Assignee:
Westinghouse Electric Corp., Pittsburgh, PA (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H04B / ;
U.S. Cl.
CPC ...
340 10 ; 310337 ; 340 / ;
Abstract
A dipole hydrophone which includes a piezoelectric bender bar having at the ends thereof two identical disks having high added mass and low actual mass, and a single mass at the center with low added mass and high actual mass. Support wires are connected to the unit at the bender nodes so that movement of the support causes no electrical output. Another configuration includes a piezoelectric bender disk having an annular ring near the edge portion thereof and a single mass at the center of the disk with the ring and central mass having the same relationship as the disk and central mass of the other embodiment.