Patents by Inventor Glen R. Keith

Glen R. Keith 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).

  • Safety mechanism for track system
    Patent number: 5312074
    Abstract: This apparatus relates to a safety mechanism for a rail system having tracks adapted to be moved in an out of alignment for the transfer of an object from one track to the other. More specifically, the apparatus relates to a mechanism which prevents the accidental movement of an object off the end of one track unless the tracks are in substantial alignment.
    Type: Grant
    Filed: January 22, 1993
    Date of Patent: May 17, 1994
    Assignee: Eastman Chemical Company
    Inventors: Glen R. Keith, Steven J. Hrivnak
  • Apparatus and method for spinning filaments
    Patent number: 5262110
    Abstract: Apparatus and method are disclosed for spinning filaments from a material such as cellulose acetate dope. The filaments are spun from a spinnerette at the top of a vertically elongated spinning cabinet. Gas is first directed parallel to the filaments as they are spun. A short distance down the cabinet, gas is directed radially inwardly toward the filaments. The two flows of gas merge and flow parallel to the filaments to the bottom of the cabinet, where the gas is withdrawn radially outwardly from the filaments.
    Type: Grant
    Filed: July 31, 1992
    Date of Patent: November 16, 1993
    Assignee: Eastman Kodak Company
    Inventors: Albert E. Spaller, Jr., C. Kit Begley, Robert G. Casper, Shen S. Chen, Bobby D. Duncan, Glen R. Keith, Junior H. Landes II, Andrew E. McLeod