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:
Jan. 28, 2014
Filed:
Nov. 13, 2009
Mark A. Burns, Ann Arbor, MI (US);
Sean M. Langelier, Ann Arbor, MI (US);
Dustin S. Chang, Mt. Laurel, NJ (US);
Mark A. Burns, Ann Arbor, MI (US);
Sean M. Langelier, Ann Arbor, MI (US);
Dustin S. Chang, Mt. Laurel, NJ (US);
National Institute of Health (NIH), Washington, DC (US);
U.S. Dept. of Health and Human Services (DHHS), Washington, DC (US);
U.S. Government of the United States as Represented by the NIH Division of Extramural Inventions and Technology Resources (DEITR), Washington, DC (US);
Abstract
An acoustical fluid control mechanism and a method of controlling fluid flow of a working fluid with the acoustical fluid control mechanism are provided. The mechanism comprises a resonance chamber that defines a cavity. The resonance chamber has a port. The cavity is sealed from the ambient but for the port for enabling oscillatory flow of a working fluid into and out of the cavity upon exposure of the resonance chamber to an acoustic signal containing a tone at a frequency that is substantially similar to a particular resonance frequency of the resonance chamber. The mechanism further includes a rectifier for introducing directional bias to the oscillatory flow of the working fluid through the port. The rectifier has an inlet connected to the port and an outlet for transmitting the directional flow of the working fluid away from the cavity. The outlet is in fluid communication with the port of the resonance chamber at least during transmission of the directional flow of the working fluid therethrough.