Patents by Inventor Ming-Min Chen

Ming-Min Chen 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).

  • Limit switch with two operation units controlled by a single control member
    Patent number: 7557315
    Abstract: A limit switch includes a control member which has a first end protruding from the body of the switch and a second end of the control member has a first contact portion and a second contact portion. A first operation unit and a second operation unit are respectively located on two respective outsides of the first and second contact portions so that the two operation units are activated by shifting the control member. The two operation units are located on two sides of the control member so that the limit switch occupies has lower height.
    Type: Grant
    Filed: February 24, 2006
    Date of Patent: July 7, 2009
    Assignee: J-Star Motor Industrial Co., Ltd.
    Inventor: Ming-Min Chen
  • Limit switch with two operation units controlled by a single control member
    Publication number: 20070199808
    Abstract: A limit switch includes a control member which has a first end protruding from the body of the switch and a second end of the control member has a first contact portion and a second contact portion. A first operation unit and a second operation unit are respectively located on two respective outsides of the first and second contact portions so that the two operation units are activated by shifting the control member. The two operation units are located on two sides of the control member so that the limit switch occupies has lower height.
    Type: Application
    Filed: February 24, 2006
    Publication date: August 30, 2007
    Inventor: Ming-Min Chen