Patents by Inventor Alan John Roper

Alan John Roper 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).

  • ULTRASONIC NEBULIZER WITH CONTROLLED MIST OUTPUT
    Publication number: 20150165465
    Abstract: An ultrasonic nebulizer includes a piezoelectric element that vibrates responsive to a drive signal having an alternating voltage. A nebulizing layer that may be a passive resonator is bonded to a first surface of the piezoelectric element and has an outer surface that transforms a liquid into a mist responsive to vibration of the piezoelectric element. A heat sink pad is in thermal contact with a heat sink and the passive resonator to dissipate heat from the piezoelectric element. The surface of the passive resonator may be roughened to guide flow of liquid.
    Type: Application
    Filed: October 27, 2014
    Publication date: June 18, 2015
    Inventors: Michael Ron Hammer, Alan John Roper
  • ULTRASONIC NEBULIZER WITH CONTROLLED MIST OUTPUT
    Publication number: 20150165466
    Abstract: An ultrasonic nebulizer includes a piezoelectric element that vibrates responsive to a drive signal having an alternating voltage. A nebulizing layer that may be a passive resonator is bonded to a first surface of the piezoelectric element and has an outer surface that transforms a liquid into a mist responsive to vibration of the piezoelectric element. The surface of the passive resonator may be textured to guide flow of liquid.
    Type: Application
    Filed: December 17, 2014
    Publication date: June 18, 2015
    Inventors: Michael Ron Hammer, Alan John Roper, Mark Junker