Patents by Inventor Dustin S. Chang

Dustin S. Chang has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Acoustical fluid control mechanism
    Patent number: 8636032
    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.
    Type: Grant
    Filed: November 13, 2009
    Date of Patent: January 28, 2014
    Assignees: National Institute of Health (NIH), U.S. Dept. of Health and Human Services (DHHS), U.S. Government of the United States as Represented by the NIH Division of Extramural Inventions and Technology Resources (DEITR)
    Inventors: Mark A. Burns, Sean M. Langelier, Dustin S. Chang
  • Acoustical Fluid Control Mechanism
    Publication number: 20110277848
    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.
    Type: Application
    Filed: November 13, 2009
    Publication date: November 17, 2011
    Inventors: Mark A. Burns, Sean M. Langelier, Dustin S. Chang