Patents by Inventor Wen-Chin Shiau

Wen-Chin Shiau 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: 6296371
    Abstract: A flashlight includes a conductive barrel, a tubular tail cap member, and a tail cap switch assembly. The barrel has a threaded rear end portion with a contact end face. The tail cap member is sleeved threadedly on the rear end portion, and has an open rear portion formed with a radial inward annular flange that is spaced apart from the contact end face. The switch assembly includes a push button cap made from an insulator material and having a contact support portion disposed in the tail cap member between the annular flange and the contact end face. A cap engaging portion extends rearwardly from the contact support portion and through the annular flange, and is in sliding engagement with the annular flange. A conductive contact member is disposed on the contact support portion. An operating portion is formed on a rear end of the cap engaging portion, and is operable from the open rear portion so as to move the push button cap to move the contact member to contact the contact end face.
    Type: Grant
    Filed: August 7, 2000
    Date of Patent: October 2, 2001
    Inventor: Wen-Chin Shiau
  • Publication number: 20010024367
    Abstract: A torch includes a barrel accommodating a battery unit therein, a lamp seat unit mounted at a front end of the barrel and composed of a tubular seat member, a lamp and a lamp positioning plate, a tubular coupling member made of a light transmittable material and sleeved around the lamp seat, and a head cap secured to a front end of the coupling member and provided with a reflector. The coupling member is axially shiftable relative to the lamp seat between a first position, where the lamp extends into the reflector so that light may be directed axially, and a second position, where the lamp is located in the coupling member and is partially withdrawn from the reflector so that light can pass radially through the coupling member.
    Type: Application
    Filed: December 27, 2000
    Publication date: September 27, 2001
    Inventor: Wen-Chin Shiau