Patents by Inventor Shen S. Sheu

Shen S. 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: 5537851
    Abstract: A bright rolled metal strip product having a surface that contains multiple microscopic raised prows formed by partial back extrusion of strip material into smooth, bowl-shaped depressions provided in a work roll surface. The prows are formed by smearing of the strip surface that results from the relative velocities of the strip and work rolls that occurs when massive reductions are taken in the thickness of the strip by the work rolls.
    Type: Grant
    Filed: May 4, 1994
    Date of Patent: July 23, 1996
    Assignee: Aluminum Company of America
    Inventors: Shen S. Sheu, Louis G. Hector, Jr.
  • Patent number: 4996113
    Abstract: A method for rolling material between rotating rolls utilizing a lubricant, at least one of the rolls having an anistropic working surface that comprises a topography of smooth bearing areas spaced apart by at least one micron-size groove extending around and along the face of the roll in the general direction of rolling. The groove receives and conducts lubricant freely therealong during the rolling process, i.e., as the material to be rolled is directed through the rotating rolls, and is compressed between the rolls, the smooth-bearing areas force lubricant from the areas to the location of the groove in the roll. In this manner, the material is rolled under boundary lubrication conditions.
    Type: Grant
    Filed: April 24, 1989
    Date of Patent: February 26, 1991
    Assignee: Aluminum Company of America
    Inventors: Louis G. Hector, Shen S. Sheu