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. 11, 2018
Filed:
Sep. 20, 2016
Applicants:
Jeffrey a Szelag, Westport, MA (US);
Michael R Zarnetske, Bristol, RI (US);
Inventors:
Jeffrey A Szelag, Westport, MA (US);
Michael R Zarnetske, Bristol, RI (US);
Assignee:
Other;
Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
G01V 13/00 (2006.01); G01V 1/20 (2006.01); H04R 1/44 (2006.01);
U.S. Cl.
CPC ...
G01V 13/00 (2013.01); G01V 1/201 (2013.01); H04R 1/44 (2013.01);
Abstract
A method of assembling a hydrophone is provided in which the method stacks ceramic rings, delrin washers, and LC-800 washers such that a top edge of a composite stack extends beyond a top of a hydrophone flange. By measuring the voltage on each ceramic ring while an end cap and a socket head cap screw are installed; the axial compression of each ceramic ring is quantified; thereby, providing an opportunity to equalize the axial compression of each ceramic ring to yield an accurately performing hydrophone.