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:
Mar. 25, 1997
Filed:
Dec. 20, 1995
Applicant:
Inventor:
Emanuel LaCarrubba, Sausalito, CA (US);
Assignee:
Other;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H04R / ;
U.S. Cl.
CPC ...
367151 ;
Abstract
An acoustic reflector is disclosed, which is formed from the surface generated by an ellipse rotated about 180.degree. about a line passing through one of the focal points of the ellipse, where this line of rotation intersects the major axis at an acute angle. A transducer placed at the focal point on the line of revolution will, when energized, generate waves that will be reflected from the surface back through the arc of second focal points of the generating ellipse.