Patents by Inventor Huo Teng Chi

Huo Teng Chi 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).

  • Extruder device
    Patent number: 5783226
    Abstract: An extruder device includes a rotor rotatably received in a housing and a tube secured to the rotor and having a helical screw formed in the outer portion. A screw member is engaged in the bore of the rotor and secured in the tube and rotated in concert with the tube and the rotor. The material to be extruded is supplied onto the tube and moved by the helical screw and then by the screw member. The helical screw includes a pitch greater than that of the screw member for allowing the helical screw of the tube to squeeze the material.
    Type: Grant
    Filed: August 13, 1997
    Date of Patent: July 21, 1998
    Inventor: Huo Teng Chi