Patents by Inventor Ro Gwan Ho

Ro Gwan Ho 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).

  • Patent number: 8342029
    Abstract: An apparatus for guarding a pressure sensor for a washing machine is provided, which adjusts the water level required to wash laundries. The apparatus for guarding a pressure sensor includes a diaphragm built in a space part of a housing to operate in accordance with the water pressure of washing water being supplied through an inlet, a metal core mounted on an upper surface of the diaphragm through a coil spring, a first sensing part installed in a moving path of the metal core to output a signal required for adjustment of a water level of the washing water, a measurement part mounted on an upper surface of the metal core to ascend/descend along an operation path of the coil spring, a second sensing part mounted on an upper side of the space part to sense maximum and minimum positions of the measurement part, and a controller outputting a blocking signal to an inlet path of the inlet.
    Type: Grant
    Filed: October 1, 2009
    Date of Patent: January 1, 2013
    Assignee: Useong Electro Mechanics Co., Ltd.
    Inventor: Ro Gwan Ho
  • Publication number: 20110048549
    Abstract: An apparatus for guarding a pressure sensor for a washing machine is provided, which adjusts the water level required to wash laundries. The apparatus for guarding a pressure sensor includes a diaphragm built in a space part of a housing to operate in accordance with the water pressure of washing water being supplied through an inlet, a metal core mounted on an upper surface of the diaphragm through a coil spring, a first sensing part installed in a moving path of the metal core to output a signal required for adjustment of a water level of the washing water, a measurement part mounted on an upper surface of the metal core to ascend/descend along an operation path of the coil spring, a second sensing part mounted on an upper side of the space part to sense maximum and minimum positions of the measurement part, and a controller outputting a blocking signal to an inlet path of the inlet.
    Type: Application
    Filed: October 1, 2009
    Publication date: March 3, 2011
    Inventor: Ro Gwan-Ho