Patents Assigned to Chun Yu Works (U.S.A.), Inc.
  • Publication number: 20080314896
    Abstract: A preferred embodiment of the foldable part holder is comprised of a front flap, a bottom flap, a back flap, a top flap, a prong flap, a plurality of folds, a plurality of slots, and a plurality of apertures all of which are formed from a flat sheet of polymeric material. The front flap, the bottom flap, the back flap, the top flap, the prong flap, the plurality of folds, the plurality of slots, and the plurality of apertures are all arranged on the flat sheet such that when the flat sheet is folded along the plurality of folds, the embodiment forms a three-dimensional part holder. The plurality of folds are formed by the polymeric sheet such that when folded the flaps engage each other in the appropriate manner. All of the elements formed onto the flat sheet of polymeric material through any fabrication process common for polymeric materials.
    Type: Application
    Filed: June 23, 2008
    Publication date: December 25, 2008
    Applicant: Chun Yu Works (U.S.A.), Inc.
    Inventors: Robert Clark Shellhorn, Steven Raymond Michaud
  • Patent number: 5345054
    Abstract: An arc shield is used in projection welding. The projection welding is performed for welding the lower end of a metal stud to the upper surface of a metal plate. The stud has a head and a stem connected securely to the central portion of the lower surface of the head. The arc shield includes an annular horizontal top wall defining a hole therein, and an annular vertical side wall having an annular top end connected securely to the outer peripheral portion of the top wall, and an annular bottom end having a plurality of notches. The annular side wall defines a chamber therein. The hole of the top wall has a size slightly greater than the diameter of the stem of the stud so as to allow for extension of the stem of the stud into the chamber through the hole of the top wall. When the projection welding is being performed, the electric arc is enclosed within the arc shield, while the surplus gas and molten metal that occur in the chamber flow from the arc shield through the notches of the annular side wall.
    Type: Grant
    Filed: April 23, 1993
    Date of Patent: September 6, 1994
    Assignee: Chun Yu Works & Co., Ltd.
    Inventor: Chun-Tang Li