Patents by Inventor Chung-Wu Chen

Chung-Wu Chen 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: 6871568
    Abstract: A hand-held framing tool includes a handle, a cover shell, and a guide member. The handle includes a coupling portion at an end thereof and a bar member protruded outwards from the coupling portion and fitted with a spring. The cover shell includes a chamber inside at a front end thereof and a guide hole positioned at a bottom side of the chamber. The guide member includes a stopping portion at an end thereof and a plurality of guide ditches extended longitudinally along an inner periphery of a hollow space thereof. The guide member is fitted in the guide hole of the cover shell. The bar member of the handle runs through the hollow space of the guide member. The spring contacts against the stopping portion of the guide member at an end thereof and contacts against the coupling portion of the handle at the other end thereof.
    Type: Grant
    Filed: April 16, 2003
    Date of Patent: March 29, 2005
    Inventor: Chung-Wu Chen
  • Patent number: 6829972
    Abstract: A saw table for fixing frame pieces of frames of paintings, pictures or photos, includes a base table having two arms crossed and substantially perpendicular to each other and a gap at where the arms are crossed, wherein the arms are respectively provided with a fastening device to secure a frame piece to be cut, and a guiding assembly having a guiding shaft provided on one of the arms at where the arms are crossed and is adjacent to the gap and an attracting device movably mounted on the guiding shaft. The attracting device has a magnet thereon for attracting a saw blade attached on the attracting device with a blade cutting portion of the saw blade received in the gap and the guiding shaft and the attracting device are respectively provided with a positioning device to fixedly secure the attracting device on the guiding shaft.
    Type: Grant
    Filed: April 10, 2003
    Date of Patent: December 14, 2004
    Inventor: Chung-Wu Chen
  • Publication number: 20040206209
    Abstract: A hand-held framing tool includes a handle, a cover shell, and a guide member. The handle includes a coupling portion at an end thereof and a bar member protruded outwards from the coupling portion and fitted with a spring. The cover shell includes a chamber inside at a front end thereof and a guide hole positioned at a bottom side of the chamber. The guide member includes a stopping portion at an end thereof and a plurality of guide ditches extended longitudinally along an inner periphery of a hollow space thereof. The guide member is fitted in the guide hole of the cover shell. The bar member of the handle runs through the hollow space of the guide member. The spring contacts against the stopping portion of the guide member at an end thereof and contacts against the coupling portion of the handle at the other end thereof.
    Type: Application
    Filed: April 16, 2003
    Publication date: October 21, 2004
    Inventor: Chung-Wu Chen
  • Publication number: 20040200331
    Abstract: A saw table for fixing frame pieces of frames of paintings, pictures or photos, includes a base table having two arms crossed and substantially perpendicular to each other and a gap at where the arms are crossed, wherein the arms are respectively provided with a fastening device to secure a frame piece to be cut, and a guiding assembly having a guiding shaft provided on one of the arms at where the arms are crossed and is adjacent to the gap and an attracting device movably mounted on the guiding shaft. The attracting device has a magnet thereon for attracting a saw blade attached on the attracting device with a blade cutting portion of the saw blade received in the gap and the guiding shaft and the attracting device are respectively provided with a positioning device to fixedly secure the attracting device on the guiding shaft.
    Type: Application
    Filed: April 10, 2003
    Publication date: October 14, 2004
    Inventor: Chung-Wu Chen