Patents by Inventor Ching-Yu Chi

Ching-Yu Chi 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: 6335500
    Abstract: A push button type switch comprises a body and drive means. The body has a hollow interior portion that is formed as two operation spaces by a spacing portion with a through hole thereon. The two spaces each being arranged with a press element having a protrusion enclosing with an operation area and a plurality of conductive elements same ends of which have respective switching element. The driving means include a depressing element connected to the operation area and has an end passing through the through hole of the spacing portion. An elastic element covers on the pressing element and has an end connected to the spacing portion; and a rotary seat is pivotally installed on the body and has a guide groove for supporting the depressing element. One end of the rotary seat has a positioning portion connected to the switching means so that as a force applies to the pressing element.
    Type: Grant
    Filed: November 1, 2000
    Date of Patent: January 1, 2002
    Inventors: Ching-Yu Chi, Chen-Fang Kao