Patents by Inventor Chan Chung Han

Chan Chung Han 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).

  • Waterproof connector and method of producing rubber stopper
    Patent number: 8568168
    Abstract: A waterproof connector has a housing (10) with a rearwardly open stopper accommodation part (20). A rubber stopper (50) is accommodated in the stopper accommodation part (20) and has wire insertion holes (52). A holder (70) is mounted on the housing (10) for preventing the rubber stopper (50) from being removed from the stopper accommodation part (20). A positioning part (58) is formed on the rubber stopper (50). A positioning receiving part (26) is formed on the stopper accommodation part (20) and mates with the positioning part (58) when the rubber stopper (50) is in a correct posture so that the rubber stopper (50) can fit in the stopper accommodation part (20). The positioning part (58) interferes with the positioning receiving part (26) when the rubber stopper (50) is in an incorrect posture so that the rubber stopper (50) cannot fit in the stopper accommodation part (20).
    Type: Grant
    Filed: September 19, 2011
    Date of Patent: October 29, 2013
    Assignee: Sumitomo Wiring Systems, Ltd.
    Inventor: Chan Chung Han
  • WATERPROOF CONNECTOR AND METHOD OF PRODUCING RUBBER STOPPER
    Publication number: 20120077377
    Abstract: A waterproof connector has a housing (10) with a rearwardly open stopper accommodation part (20). A rubber stopper (50) is accommodated in the stopper accommodation part (20) and has wire insertion holes (52). A holder (70) is mounted on the housing (10) for preventing the rubber stopper (50) from being removed from the stopper accommodation part (20). A positioning part (58) is formed on the rubber stopper (50). A positioning receiving part (26) is formed on the stopper accommodation part (20) and mates with the positioning part (58) when the rubber stopper (50) is in a correct posture so that the rubber stopper (50) can fit in the stopper accommodation part (20). The positioning part (58) interferes with the positioning receiving part (26) when the rubber stopper (50) is in an incorrect posture so that the rubber stopper (50) cannot fit in the stopper accommodation part (20).
    Type: Application
    Filed: September 19, 2011
    Publication date: March 29, 2012
    Applicant: SUMITOMO WIRING SYSTEMS, LTD.
    Inventor: Chan Chung Han