Patents Assigned to Double Dynasty Co., Ltd.
  • Patent number: 7464768
    Abstract: An intake and exhaust guide device for pneumatic tool including a handle, a pressure shunt connector, and two pressure tubes. The handle has a cylindrical hole. The pressure shunt connector is inserted into an outer end of the handle. The pressure shunt connector has a cylindrical hole and a screw hole forming an exhaust passage of the pneumatic tool. The cylindrical hole of the pressure shunt connector has an extension rod and an elongated hole with a ring-shaped groove. The extension rod is inserted through the elongated hole and connected to an intake screw hole of the handle. Each of the two pressure tubes is connected to one of the elongated hole and the screw hole of the pressure shunt connector.
    Type: Grant
    Filed: January 12, 2007
    Date of Patent: December 16, 2008
    Assignee: Double Dynasty Co., Ltd.
    Inventor: Wen-Yuan Wang
  • Patent number: 7367098
    Abstract: A tool for removing a protection strip of car comprises mainly a handle, a stem part and a shovel blade; the stem part has an elongate straight rod with a S-shaped plate at one end thereof; the outer end of the S-shaped plate at one end thereof; the outer end of the S-shaped plate has a wider part wided together with the shove blade; the shovel blade is a L-shaped plate including two symmetrical triangle plates; the outer ends of the two triangle plates each has an edge part; when the tool is used for removing a protection strip of a car, the edge part of a plate of the L-shaped angle is set in contact with the protection strip, and is pushed with a pressure; in that case, the adhesive under the protection strip can be cut and removed easily and quickly; simultaneously, the space between the S-shaped plate and the plate part can be used for providing a guide function to the cut pressure.
    Type: Grant
    Filed: January 12, 2007
    Date of Patent: May 6, 2008
    Assignee: Double Dynasty Co., Ltd.
    Inventor: Wen-Yuan Wang
  • Patent number: 6342002
    Abstract: An improved structure of a wax-polishing machine, which mainly comprises a fixed disk mounted on the front end of the body portion of the polishing machine; the disk surface of the fixed disk is mounted with a bearing, of which the inner edge is in contact with the outer surface of an inner driven gear; between the inner driven gear and the transmission shaft of the polishing machine, there are an idle gear and a driving gear mounted therein; the outer edge surface of the inner driven gear is in close contact with an outer rotation disk; the center of the outer rotation disk has a cylindrical hole for receiving a post body of the inner rotation disk, and then the post body can be screwed on the outer end of the transmission shaft; the inner surface of the inner rotation disk and the outer surface of the outer rotation disk are glued with Velcro pads respectively so as to facilitate sponge pieces with Velcro pads to be fastened together; when the transmission shaft of the polishing machine is actuated, the dri
    Type: Grant
    Filed: July 14, 2000
    Date of Patent: January 29, 2002
    Assignee: Double Dynasty Co., Ltd.
    Inventor: Frank Wang