Patents by Inventor Che-Chang Cheng

Che-Chang Cheng 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).

  • REPLACING DEVICE FOR LAMINATED MANUFACTURING PLATFORM
    Publication number: 20190160798
    Abstract: A replacing device for a laminated manufacturing platform is provided. The replacing device has a box, a carrying body, and a lifting mechanism. The box includes two slides. The carrying body can slide on the slide and be replaced by another carrying body. Thus, problems that a working platform of a laminated manufacturing equipment is not moved, workpieces are not automatically produced and the workpieces are not synchronously replaced can be effectively solved.
    Type: Application
    Filed: February 18, 2018
    Publication date: May 30, 2019
    Inventors: Kuo-kuang JEN, Chung-chun HUANG, Che-chang CHENG, Tzu-chia YANG, Chi-hsiang HUNG, Hsin-pao CHEN, Jui-hsiung YEN
  • Electric pencil sharpener with a replaceable cutter assembly
    Patent number: 9555661
    Abstract: An electric pencil sharpener has a body, a cover and a cutter assembly. The body has a transmission device and a waste case having an opening. The cover is mounted on and closes the opening of the waste case. The cutter assembly is mounted in the waste case, is detachable from the waste case via the opening and has a connection base, a cutter bracket and a cutter. The connection base has a combining hole defined through the connection base. The cutter bracket is connected rotatably with the connection base and has a connection element connected with transmission device to make the cutter bracket driven by and rotate with the transmission device. The cutter is mounted on the cutter bracket. Accordingly, the cutter assembly is easily and conveniently replaceable when the cutter of the cutter assembly is damaged or worn off.
    Type: Grant
    Filed: August 23, 2012
    Date of Patent: January 31, 2017
    Assignee: SDI CORPORATION
    Inventors: Che-Chang Cheng, Chien-Hsing Chang, Liang-Liang Yao
  • ELECTRIC PENCIL SHARPENER WITH A REPLACEABLE CUTTER ASSEMBLY
    Publication number: 20130186517
    Abstract: An electric pencil sharpener has a body, a cover and a cutter assembly. The body has a transmission device and a waste case having an opening. The cover is mounted on and closes the opening of the waste case. The cutter assembly is mounted in the waste case, is detachable from the waste case via the opening and has a connection base, a cutter bracket and a cutter. The connection base has a combining hole defined through the connection base. The cutter bracket is connected rotatably with the connection base and has a connection element connected with transmission device to make the cutter bracket driven by and rotate with the transmission device. The cutter is mounted on the cutter bracket. Accordingly, the cutter assembly is easily and conveniently replaceable when the cutter of the cutter assembly is damaged or worn off.
    Type: Application
    Filed: August 23, 2012
    Publication date: July 25, 2013
    Inventors: Che-Chang Cheng, Chien-Hsing Chang, Liang-Liang Yao