Patents by Inventor Nai Kin CHAN

Nai Kin CHAN 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).

  • Publication number: 20190291033
    Abstract: A device with external diaphragm for acoustic cleaning and air purification is provided. The device comprises a housing with a first opening at a top for receiving one or more acoustic wave generating devices each with a diaphragm attached to a coil; and one or more external diaphragm each covering and sealing the diaphragm attached to the coil to facilitated in protecting the acoustic wave generating device as impurities or materials deposit and accumulate on the external diaphragm instead of the diaphragm of the acoustic wave generating device, and easy cleaning as only the external diaphragm needs to be cleaned, which also avoids damage to the diaphragm of the acoustic wave generating device during cleaning.
    Type: Application
    Filed: March 22, 2018
    Publication date: September 26, 2019
    Inventors: Gin Nam SZE TO, Nai Kin CHAN
  • Publication number: 20190076774
    Abstract: An air filter and a method of air filtration using the said air filter are described. The air filter may comprise a filter media layer adapted to capture and filter one or more impurities from air. The air filter may further comprise one or more acoustic wave generating means attached at one or more sides of the filter media layer. The one or more acoustic wave generating means may generate acoustic waves to be propagated into the filter media layer. The propagation of the acoustic waves into the filter media layer may facilitate the filter media layer to enhance the filtration efficiency of the air filter. The air filter may further comprise a pre-programmed chip to control the frequency of the acoustic waves generated. Further, air filter may comprise a battery adapted to supply power to the one or more acoustic wave generating means and the pre-programmed chip.
    Type: Application
    Filed: November 12, 2018
    Publication date: March 14, 2019
    Inventors: Gin Nam Sze To, Steven Nai-Kin Chan
  • Patent number: 10159925
    Abstract: An air filter and a method of air filtration using the said air filter are described. The air filter may comprise a filter media layer adapted to capture and filter one or more impurities from air. The air filter may further comprise one or more acoustic wave generating means attached at one or more sides of the filter media layer. The one or more acoustic wave generating means may generate acoustic waves to be propagated into the filter media layer. The propagation of the acoustic waves into the filter media layer may facilitate the filter media layer to enhance the filtration efficiency of the air filter. The air filter may further comprise a pre-programmed chip to control the frequency of the acoustic waves generated. Further, air filter may comprise a battery adapted to supply power to the one or more acoustic wave generating means and the pre-programmed chip.
    Type: Grant
    Filed: January 6, 2017
    Date of Patent: December 25, 2018
    Assignee: Aurabeat Holdings Limited
    Inventors: Gin Nam Sze To, Steven Nai-Kin Chan
  • Publication number: 20170197171
    Abstract: An air filter and a method of air filtration using the said air filter are described. The air filter may comprise a filter media layer adapted to capture and filter one or more impurities from air. The air filter may further comprise one or more acoustic wave generating means attached at one or more sides of the filter media layer. The one or more acoustic wave generating means may generate acoustic waves to be propagated into the filter media layer. The propagation of the acoustic waves into the filter media layer may facilitate the filter media layer to enhance the filtration efficiency of the air filter. The air filter may further comprise a pre-programmed chip to control the frequency of the acoustic waves generated. Further, air filter may comprise a battery adapted to supply power to the one or more acoustic wave generating means and the pre-programmed chip.
    Type: Application
    Filed: January 6, 2017
    Publication date: July 13, 2017
    Inventors: Gin Nam Sze To, Steven Nai-Kin Chan