Patents by Inventor Tyng-Jen Sheu

Tyng-Jen 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: 5599089
    Abstract: A light device includes a casing, a bulb holding rod, a bulb unit, a power supply unit, a guide device, and a retainer device. The casing includes a bulb receiving recess formed in an external surface thereof, and a slide hole formed in the casing. The holding rod is mounted slidably within the slide hole of the casing and has an inner end located in the casing, and an outer end which extends from the slide hole. The bulb unit is carried pivotally on the outer end of the rod. The power supply unit is installed within the casing and is connected electrically to the bulb unit so as to energize the bulb unit when in use. The guide device prevents rotation of the rod within the slide hole of the casing. The retainer device prevents disengagement of the rod from the slide hole of the casing.
    Type: Grant
    Filed: February 13, 1996
    Date of Patent: February 4, 1997
    Inventors: Tyng-Jen Sheu, Jia-Ming Sheu
  • Patent number: 4944622
    Abstract: This invention relates to a writing implement including an elongated tube having an upper open end and a lower end in which a clamping device and a propelling device are mounted, as well as a central bore extended from the upper open end to the clamping device. The central bore of the elongated tube includes an upper section as well as a lower section the diameter of which is smaller than that of the upper section. The lower section is provided with a plurality of radial grooves extended from the lower section for the purpose of receiving the leads. A lead supplying rod is rotatably fitted in the lower section of the central bore. The lead supplying rod has a through bore connected with the clamping device and a slot radially extended from the through bore thereof. The slot of the lead supplying rod communicates with one of the grooves of the tube and permits the leads to singly enter the through bore.
    Type: Grant
    Filed: March 16, 1989
    Date of Patent: July 31, 1990
    Inventor: Tyng-Jen Sheu