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:
Jun. 20, 1989
Filed:
Jun. 09, 1986
Applicant:
Inventors:
Thomas J Danley, Highland Park, IL (US);
Charles A Rey, Naperville, IL (US);
Assignee:
Intersonics Incorporated, Northbrook, IL (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G01K / ;
U.S. Cl.
CPC ...
367191 ; 181-05 ; 73505 ;
Abstract
A sound source coupled to an acoustic levitation chamber is provided with horn loading to improve efficiency and to protect the sound source from heat. A dish sound source may be used, and the horn may include a half wavelength pathway from the rear of the dish to provide additional efficiency.