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:
Aug. 20, 1991
Filed:
Dec. 05, 1990
Applicant:
Inventors:
Assignee:
Other;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F15C / ;
U.S. Cl.
CPC ...
137 13 ; 137828 ; 137830 ; 137831 ;
Abstract
Substantial alteration of the flow conditions in a fluid stream are effected by the application of controlled disturbances to the boundary of or within the stream by one or more piezoelectric actuators. The actuators have resonance frequencies substantially in excess of the unstable frequencies of the stream. The actuators are energized by carrier signals at the resonance frequencies of the actuators, which carrier signals have been modulated at the desired unstable frequency of the stream.
Glezer, Ari. (1991). Method and apparatus for controlled modification of fluid flow (U.S. Patent No. 5040560). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/5040560
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