Patents by Inventor Yu-Wen Hsu

Yu-Wen Hsu 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).

  • Publication number: 20100058864
    Abstract: A multi-axis capacitive accelerometer is disclosed. A first mass is disposed and held by an anchor supported by a substrate, wherein the first mass is asymmetrically suspended on the anchor by means of two cantilevers, so that the first mass rotates about a rotation axis, for sensing the acceleration in a first direction perpendicular to the substrate. A second mass is disposed in the first mass and suspended on the first mass by means of a set of springs to sense the acceleration in a second direction parallel to the substrate. Furthermore, a third mass can be disposed in the second mass, wherein the third mass is suspended on the second mass by means of another set of springs to sense the acceleration in a third direction. The first direction, the second direction and the third direction are mutually orthogonal to each other.
    Type: Application
    Filed: August 30, 2009
    Publication date: March 11, 2010
    Applicant: Industrial Technology Research Institute
    Inventors: Yu-Wen Hsu, Hsin-Tang Chien, Sheah Chen
  • Publication number: 20040248679
    Abstract: A torque limiting device for a wheeled vehicle includes a fixed boss, a plurality of rolling balls, a roller retainer, a roller seat, several disk springs, and a driven housing. Thus, when the wheeled vehicle is suddenly braked under the emergency condition or when the rear tires are subjected to a larger resistance and excessive torque, the driven shaft disengages from the fixed boss, and the rotation of fixed boss cannot drive and rotate the driven shaft, such that the driven shaft stops rotating temporarily, thereby preventing the transmission parts of the CVT and reducing speed system of the wheeled vehicle from being broken or worn out by the excessive torque.
    Type: Application
    Filed: June 3, 2003
    Publication date: December 9, 2004
    Inventors: Yu-Wen Hsu, Yan-Min Su, Kun-Che Lee
  • Patent number: 4512170
    Abstract: A process and apparatus for on-line measurement of unflatness of hot or cold rolled strip products, wherein the longitudinal bending of a shape roll over which the strip passes provides a measure of the unflatness of the strip. Actual values of force, displacement or bending moment near the ends of the shape roll may be compared to theoretically predicted values for a flat product and for product having various out-of-flatness conditions. Preferably, the shape roll is supported at its ends by two pairs of supports, and the measurements at the supports are used in determining roll bending and then strip unflatness. Other conditions such as off-center strip and asymmetric operation of the rolling mill may also be determined from the measurement.
    Type: Grant
    Filed: September 30, 1983
    Date of Patent: April 23, 1985
    Assignee: Kaiser Aluminum & Chemical Corporation
    Inventor: Yu-Wen Hsu
  • Patent number: 4510784
    Abstract: A device for applying coolant/lubricant to the surface of the rolls of the rolling mill and/or the workpiece being rolled. The device comprises a housing having a plurality of nozzles associated therewith, a rotating inner manifold having a plurality of apertures therein in a particular array for directing liquid to the nozzles and sealing means between the manifold and housing which provides a leak-free passageway for the liquid. The manifold is rotated to align the apertures therein with the leak-free passageway to supply liquid to the desired nozzles.
    Type: Grant
    Filed: October 11, 1983
    Date of Patent: April 16, 1985
    Assignee: Kaiser Aluminum & Chemical Corporation
    Inventor: Yu-Wen Hsu