Patents by Inventor Chen Ching-ho

Chen Ching-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: 4890691
    Abstract: A muffler for impeding and reflecting exhaust to reduce the formation of sound waves through a plurality of cone and barrier assemblies alternately and longitudinally spaced in a cylindrical body, with the apex of a conical member of each cone assembly and an outwardly extending cylindrical portion of each barrier assembly being directed towards the input end of the body. Exhaust flow paths for dissipating exhaust noise are defined by orifices formed in the conical members and cylindrical portions, and spaces between spokes joining each conical member to a circular member.
    Type: Grant
    Filed: November 16, 1988
    Date of Patent: January 2, 1990
    Inventor: Chen Ching-ho