Patents by Inventor Hsien-Pei Wang

Hsien-Pei Wang 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).

  • Method for manufacturing drill cutters and structure thereof
    Publication number: 20080181735
    Abstract: A method for manufacturing drill cutters and structure thereof includes forming a base body by forging that has a shank and a barrel which has a plurality of wedging portions at an upper end and forming a barrel-type drill head through powder metallurgy that has a plurality of coupling elements at a lower end corresponding to the wedging portions. The drill head and the base body can be joined together to form a drill cutter which is wear-resisting and does not fracture easily.
    Type: Application
    Filed: January 25, 2007
    Publication date: July 31, 2008
    Inventor: Hsien-Pei Wang
  • Air compressor
    Patent number: 6129516
    Abstract: In an air compressor a collapsible air storage device is provided to accumulate high pressure air for output, the collapsible air storage device including a collapsible bag defining an air storage chamber, and a rubber cover layer covered on the collapsible bag to keep the air storage chamber in an air tight condition, the rubber cover layer shrinking and imparting a compressive force to the collapsible bag after stoppage of the air compressor, causing the collapsible bag to be collapsed.
    Type: Grant
    Filed: April 20, 1999
    Date of Patent: October 10, 2000
    Inventor: Hsien-Pei Wang
  • Hole drilling machine with magnetic holder
    Patent number: D681080
    Type: Grant
    Filed: December 18, 2012
    Date of Patent: April 30, 2013
    Assignee: Ting Fong Electric & Machinery Co., Ltd.
    Inventor: Hsien-Pei Wang
  • Core drill
    Patent number: D936118
    Type: Grant
    Filed: January 22, 2020
    Date of Patent: November 16, 2021
    Assignee: TING FONG ELECTRIC & MACHINERY CO., LTD.
    Inventor: Hsien-Pei Wang