Patents Assigned to DTech Precision Industries Co.
  • Screw structure with stop ring
    Patent number: 8113755
    Abstract: A screw structure with a stop ring includes a screw, a ferrule, and a stop ring. The stop ring is fitted on a threaded shank of the screw to push against a front end of the ferrule, so that the ferrule is pressed against a head of the screw. With the ferrule being firmly pressed against the head of the screw by the stop ring, the ferrule will not sway relative to the screw, allowing the screw structure to be stably sucked with a sucking tool and be highly accurately assembled to a printed circuit board.
    Type: Grant
    Filed: August 28, 2009
    Date of Patent: February 14, 2012
    Assignee: DTech Precision Industries Co.
    Inventor: Ting-Jui Wang