Patents by Inventor Chang S. Y. Ho

Chang S. Y. 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).

  • Double bladed windshield wiper and drive arm conector therefor
    Patent number: 5435041
    Abstract: A double-blade wind shield wiper, the blade assembly of which comprising a frame assembly for holding two parallel wiper blades. The frame assembly includes a main frame at the middle, two end frames at two opposite ends and two intermediate frames set therebetween which are respectively connected into shape by conning pins and spring plates. The frame assembly has vent holes and bevel strips for guiding air stream to force wiper blades to firmly attach to wind shield glass. An adapter is fastened in frame assembly to match with a connector for connecting the blade assembly to either type of wiper drive arm.
    Type: Grant
    Filed: August 5, 1994
    Date of Patent: July 25, 1995
    Inventor: Chang S. Y. Ho
  • Structure of double-blade wind shieldwiper with arm to blade connectors
    Patent number: 5383248
    Abstract: A double-blade wind shield wiper, the blade assembly of which comprising a frame assembly for holding two parallel wiper blades. The frame assembly includes a main frame at the middle, two end frames at two opposite ends and two intermediate frames set therebetween which are respectively connected into shape by conning pins and spring plates. The frame assembly has vent holes and bevel strips for guiding air stream to force wiper blades to firmly attach to wind shield glass. An adapter is fastened in frame assembly to match with a connector for connecting the blade assembly to a wiper drive arm.
    Type: Grant
    Filed: February 24, 1993
    Date of Patent: January 24, 1995
    Inventor: Chang S. Y. Ho