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:
Nov. 17, 1992
Filed:
Apr. 27, 1990
Applicant:
Inventor:
Daniel Wolf, Louisville, KY (US);
Assignee:
Other;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H05K / ;
U.S. Cl.
CPC ...
181147 ;
Abstract
A sonic wave generator includes at least one pair of concave acoustic baffles arranged in concavely facing relationship in mutual coaxial alignment. The facing acoustic baffles of the pair are spaced apart from each other by a predetermined distance so that an annular opening is formed between the peripheral edges of the openings of the facing concave baffles. A driven diaphram is located at the closed end of each audio baffle opposite the open end of the baffle. The driven diaphrams located in the baffle pair face toward each other in mutual coaxial alignment and in coaxial alignment with the acoustic baffles.