Patents by Inventor Jia-Ming Sheu

Jia-Ming 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: 4957383
    Abstract: A lead propelling device for an automatic pencil includes an upper tubular body which has a through-hole tapering downward and a first lead clamping face at the lower end of the through-hole, the tubular body being split along an axial plane thereof to permit the first clamping face to move between a clamping position and a releasing position, and a corrugated hollow member connected to the tubular member and having a corrugated wall with a plurality of indented annular portions defining second lead clamping faces which are movable between a clamping position and a releasing position thereof. The second clamping faces are in the clamping position when the first clamping face is in the releasing position thereof. A cone-shaped lead guide member is provided in the tapered end of the pencil tube and has a bottommost tube portion to protrude outward from the tapered end. The lead guide member is movable between a protruding position and a retracted position to propel and draw in the lead rod.
    Type: Grant
    Filed: April 11, 1989
    Date of Patent: September 18, 1990
    Inventor: Jia-Ming Sheu