Patents by Inventor Tung-Wei CHANG

Tung-Wei CHANG 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: 9687924
    Abstract: A knockdown band saw guide seat includes multiple separate components. The components can be assembled and connected with each other as building blocks. Accordingly, the relative positions between the assembled components can be respectively adjusted. In addition, the variety, number and position of the assembled components can be changed in accordance with practical requirement to provide necessary function for the operation.
    Type: Grant
    Filed: August 12, 2015
    Date of Patent: June 27, 2017
    Inventor: Tung-Wei Chang
  • Publication number: 20160297017
    Abstract: A knockdown band saw guide seat includes multiple separate components. The components can be assembled and connected with each other as building blocks. Accordingly, the relative positions between the assembled components can be respectively adjusted. In addition, the variety, number and position of the assembled components can be changed in accordance with practical requirement to provide necessary function for the operation.
    Type: Application
    Filed: August 12, 2015
    Publication date: October 13, 2016
    Inventor: Tung-Wei CHANG
  • Publication number: 20110232446
    Abstract: A safety material feeding device installable on a saw machine for pushing and moving a work material on a working platform of the saw machine to saw the work material with a saw blade. The safety material feeding device includes: a bed section fixedly disposed on the saw machine; a material feeding section pivotally disposed on the bed section and reciprocally moved between a backward position, which is out of a movement path of the work material on the working platform and a forward position; and a transmission section for driving the material feeding section to move from the backward position to the forward position. When moved from the backward position to the forward position, one end of the material feeding section is moved into contact with the work material to push the work material toward the saw blade of the saw machine to be sawed by the saw blade.
    Type: Application
    Filed: March 27, 2010
    Publication date: September 29, 2011
    Inventor: Tung-Wei CHANG