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:
Feb. 27, 1979
Filed:
Jan. 10, 1977
George O Pickens, San Diego, CA (US);
The United States of America as represented by the Secretary of the Navy, Washington, DC (US);
Abstract
In an apparatus for projecting low-frequency acoustic waves in a liquid ma, a chamber adapted to be immersed in the media contains gaseous material to provide a compliance and is provided with an aperture. A piston of selected mass is sealably mounted in the aperture, having one end adapted to displace a selected mass of the liquid media and the other end adapted to displace the gaseous material in the chamber. An actuating device is coupled to the piston for reciprocating it at the resonant frequency of a mechanical system which substantially comprises the compliance provided by the contained gaseous material, the mass of the piston, and the mass of the displaced liquid media.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile