Patents by Inventor Dong-Yea Sheu

Dong-Yea Sheu 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: 8397374
    Abstract: A micro spherical stylus manufacturing machine comprises a clamp, a moving unit, a wire supply unit, a wire retrieving unit, an insulating roller, a conducting wire body, a discharging unit, and a loading unit. The clamp is used to hold a circular-shaped electrode, and the loading unit is used to carry a micro sphere, and the insulating roller is positioned at one side of the clamp. The micro spherical stylus manufacturing machine can fabricate a micro electrode tool on the same platform, and then form a micro spherical stylus for a micro coordinate measuring machine by a gluing process.
    Type: Grant
    Filed: July 16, 2009
    Date of Patent: March 19, 2013
    Assignee: National Taipei University of Technology
    Inventor: Dong-Yea Sheu
  • Publication number: 20120055912
    Abstract: A micro spherical stylus manufacturing machine includes a three-axis moving unit movably disposed on a processing platform and connected to a single-pulse electrical monitoring unit; a detachable jig movably disposed on the moving unit for clamping a workpiece; a reeling and electrical discharging unit disposed on the processing platform and connected to the single-pulse electrical monitoring unit for processing the workpiece by electrical discharge machining (EDM) to form a pointed conical electrode instrument; an electrical discharging unit disposed on the processing platform and connected to the single-pulse electrical monitoring unit for processing the point of the workpiece by EDM to form a sphere; and an optical measuring unit disposed on the processing platform and connected to the single-pulse electrical monitoring unit for measuring the workpiece. Micro spherical styluses are manufactured and evaluated with the machine concurrently.
    Type: Application
    Filed: September 7, 2010
    Publication date: March 8, 2012
    Applicant: NATIONAL TAIPEI UNIVERSITY OF TECHNOLOGY
    Inventor: Dong-Yea Sheu
  • Patent number: 7906743
    Abstract: A gradation twin-wire EDM manufacturing system includes a manufacture machine, a wire feeding bobbin set mounted on the manufacture machine, a wire receiving bobbin set mounted on the manufacture machine, a gradation electro-insulated roller mounted on the manufacturing machine, two wires detoured around the wire feeding bobbin set, the gradation electro-insulated roller and the wire receiving bobbin set, a RC electro discharge circuit connected to one wire, and a transistor RC electro discharge circuit connected to another wire. Therefore, only one manufacture process is needed for a quick manufacture of a workpiece, and thus saving the manufacturing time and enhancing the efficiency.
    Type: Grant
    Filed: July 9, 2008
    Date of Patent: March 15, 2011
    Assignee: National Taipei University of Technology
    Inventor: Dong-Yea Sheu
  • Publication number: 20110010931
    Abstract: A micro spherical stylus manufacturing machine comprises a clamp, a moving unit, a wire supply unit, a wire retrieving unit, an insulating roller, a conducting wire body, a discharging unit, and a loading unit. The clamp is used to hold a circular-shaped electrode, and the loading unit is used to carry a micro sphere, and the insulating roller is positioned at one side of the clamp. The micro spherical stylus manufacturing machine can fabricate a micro electrode tool on the same platform, and then form a micro spherical stylus for a micro coordinate measuring machine by a gluing process.
    Type: Application
    Filed: July 16, 2009
    Publication date: January 20, 2011
    Applicant: NATIONAL TAIPEI UNIVERSITY OF TECHNOLOGY
    Inventor: DONG-YEA SHEU
  • Publication number: 20100140226
    Abstract: A Tandem-type micro electro-discharge machining (EDM) apparatus comprises a EDM machining stage, a gradation twin-wire EDM device, an electrode tool, a workpiece, and a resistor-capacitor (RC) EDM circuit. The gradation twin-wire EDM device further comprises a wire supply reel unit, a wire take-up reel unit, a stepped insulating roller, a twin-wire conductor unit, and a discharge circuit unit. With the design of the gradation twin-wire EDM device, only one single EDM procedure is needed to simultaneously perform rough EDM and finish EDM processes together on the electrode tool to form a required micro electrode tool, which can be immediately used to perform micro-hole EDM or scanning EDM on the workpiece. Therefore, the Tandem-micro EDM apparatus of the present invention can be functioned automatically to achieve mass production of micro holes EDM and reduce machining time and improve machining efficiency and product's quality.
    Type: Application
    Filed: December 8, 2008
    Publication date: June 10, 2010
    Inventor: Dong-Yea SHEU
  • Publication number: 20100005650
    Abstract: A gradation twin-wire EDM manufacturing system includes a manufacture machine, a wire feeding bobbin set mounted on the manufacture machine, a wire receiving bobbin set mounted on the manufacture machine, a gradation electro-insulated roller mounted on the manufacturing machine, two wires detoured around the wire feeding bobbin set, the gradation electro-insulated roller and the wire receiving bobbin set, a RC electro discharge circuit connected to one wire, and a transistor RC electro discharge circuit connected to another wire. Therefore, only one manufacture process is needed for a quick manufacture of a workpiece, and thus saving the manufacturing time and enhancing the efficiency.
    Type: Application
    Filed: July 9, 2008
    Publication date: January 14, 2010
    Inventor: Dong-Yea Sheu