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:
Jul. 15, 2014
Filed:
Dec. 23, 2009
Frederic Mosca, Marseilles, FR;
Pascal Girardi, Toulon, FR;
Robert Girault, Le Beausset, FR;
Yann Cottreau, Le Beausset, FR;
Guillaume Matte, La Ciotat, FR;
Samuel Thomas, Marseilles, FR;
Frederic Mosca, Marseilles, FR;
Pascal Girardi, Toulon, FR;
Robert Girault, Le Beausset, FR;
Yann Cottreau, Le Beausset, FR;
Guillaume Matte, La Ciotat, FR;
Samuel Thomas, Marseilles, FR;
Ixblue, Marly le Roi, FR;
Abstract
An acoustic wave transducer includes at least one electroacoustic motor, a horn having an inner wall and an outer wall, a counterweight, and a hollow housing having an inner wall and an outer wall and at least one acoustic opening. The electroacoustic motor is connected to the horn and to the counterweight along an axis, and the electroacoustic motor is capable of exciting the horn at about at least one resonance frequency. The housing is connected to the counterweight and surrounds the motor and the horn, the outer wall of the horn being arranged opposite an acoustic opening of the housing, and the space between the inner wall of the housing and the inner wall of the horn defines a cavity that contains a fluid. The transducer includes acoustic attenuation elements connected to the outer wall of the housing in order to attenuate the emission and/or reception acoustic waves at the frequency at least in a direction transverse to the emission/reception axis. A sonar antenna that includes at least one transducer is also described.