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:
May. 11, 2021
Filed:
Dec. 20, 2019
Applicant:
The United States of America As Represented BY the Secretary of the Navy, Newport, RI (US);
Inventor:
Anthony A Ruffa, Hope Valley, RI (US);
Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
H04R 1/22 (2006.01); H04R 1/02 (2006.01); H04R 1/28 (2006.01);
U.S. Cl.
CPC ...
H04R 1/227 (2013.01); H04R 1/025 (2013.01); H04R 1/2803 (2013.01); H04R 2201/405 (2013.01); H04R 2430/23 (2013.01);
Abstract
An acoustic source positionable on a platform in an operating environment includes a pendulum arm and a transducer positioned on the pendulum arm. The combined arm and transducer have a natural frequency of oscillation dictated by gravity and a pendulum length. A signal generator is electrically joined to the transducer. The signal generator has a preferred frequency of operation at the natural frequency of the pendulum.