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:
Jun. 17, 1980
Filed:
Dec. 06, 1978
Applicant:
Inventors:
John H Thompson, Severna Park, MD (US);
George R Douglas, Arnold, MD (US);
Assignee:
Westinghouse Electric Corp., Pittsburgh, PA (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H04B / ;
U.S. Cl.
CPC ...
367171 ; 310337 ; 367174 ;
Abstract
A dipole hydrophone having a differential pressure sensing unit, for example, a multi-laminar bender disc, within a liquid filled housing. Two liquid filled acoustic waveguides form extensions of the housing and include pressure sensing ports. A mass of predetermined value is connected to the sensing unit and with a predetermined separation between sensing ports, the mass value is chosen so that the sensing unit response to acceleration is very nearly equal and opposite to its response due to the inertial mass of the liquid.