Patents by Inventor Hsien-Tu Huang

Hsien-Tu Huang 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: 6158308
    Abstract: A double sided ratchet wrench having a one-way reversing mechanism is provided. The wrench includes a handle, a ring integrated with on end of the handle having an inner flange extending inward from a middle inner periphery on the underside of which forms a first ratchet, a first tip head having a hollow interior body inserted into the ring, a first outer flange and a thru hole in a side wall above the first outer flange, a second tip head having a solid body including a narrow upper portion inserted into the hollow interior body and a first spring biased steel ball in a lateral side engaged into the thru hole of the first tip head, a thick lower portion including a second spring biased steel ball in a lateral side for engaging with additional fastening tools, a second outer flange between the upper and lower portions having a second ratchet on the top engageable with the first ratchet of the ring and a compression spring disposed between the first tip head and the ring.
    Type: Grant
    Filed: May 14, 1999
    Date of Patent: December 12, 2000
    Inventor: Hsien-Tu Huang
  • Patent number: 6149332
    Abstract: An auxiliary pencil extending cap mainly comprises a cap and a fastening ring, the cap is hollow and in cylindrical shape, two opposite slits are disposed on one end of the cap and are arranged on the same axis of the length of the cap, two opposite indentations are disposed next to the slits on the cap, a longitudinal hole is found inside the indentations, few protruded bars are disposed on the inner surface of the cap and are arranged on the same axis of the length of the cap, the fastening cap is in circular shape and having an opening, a flat rod is extended downwards from the fastening ring, the diameter of the slits is contracted by moving the fastening ring on the slits of the cap, so that the fastening ring grip on the top of the pencil in order to lengthen the length of the pencil, the indentations are for fingers to put on to move the cap more convenient, and the longitudinal hole is for user to see through if the pencil is inside or the length of the pencil.
    Type: Grant
    Filed: April 24, 2000
    Date of Patent: November 21, 2000
    Inventor: Hsien-Tu Huang
  • Patent number: 6062755
    Abstract: A combination pen casing. The casing is frictionally combined with a predetermined number of sleeves of hollow stepped taper body. The sleeves each includes a smaller diameter upper rim, a large diameter lower rim, a first, second and third neck, a right-angle portion and a first sloped surface formed on the outer periphery, a first, second and third shoulder a circular space and a second sloped surface formed on the inner periphery respectively engageable with the second and third neck, the right-angle portion and the first sloped surface, and a central bore of rough inner periphery formed in the upper rim. When the sleeves are combined, an ink cartridge, a lead or a crayon is frictionally disposed into the central bore. This pen casing is characterized in that the sleeves can be alternately moved from the front end to the rear end of the casing for repeated use so as to waste no materials.
    Type: Grant
    Filed: May 28, 1999
    Date of Patent: May 16, 2000
    Inventor: Hsien-Tu Huang
  • Patent number: 6024246
    Abstract: A structure of squeeze lid is provided. The squeeze lid includes a cyliner container having an upper opening and a sloped flange slightly extending outward from the opening; a squeeze lid of a circular body having a first and second lower flanges concentrically formed and extending downward from the edge of the body to define an annular gap therebetween engageable with the sloped flange of the container, an upper flange extending upward from the edge of the body including a plurality of radial slits fromed spaced apart in the circulity of radial slits fromed spaced apart in the circumference and a reinforcement ring engageable into a circular space moving outward so as to effect the second lower flange to move inward in order to tightly close the upper opening of the container which may decorate with patterns to be used as a cup or vase.
    Type: Grant
    Filed: December 8, 1998
    Date of Patent: February 15, 2000
    Inventor: Hsien-Tu Huang
  • Patent number: 5933880
    Abstract: An assembled toilet bowl mainly includes a seat section, a base and a valve cover set. When activating a flushing control member, the valve cover is opened. The water from the water source will flow through a water incoming passage of the seat section and a bowl-shaped space. Then the water will horizontally flow through a valve port and then flow through a draining passage of the base and downward flow out. Reversely, when the flushing control member is not activated, the valve cover is closed. Under such circumstance, the water of the water source will not flow out and the valve cover will block the valve port to isolate the draining passage. Therefore, the toilet bowl can save more water, can be fixed on a wall, can be easily assembled, and can be easily cleaned.
    Type: Grant
    Filed: October 13, 1998
    Date of Patent: August 10, 1999
    Inventor: Hsien-Tu Huang