Patents by Inventor Charles Newton Grichar

Charles Newton Grichar 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).

  • Shale shaker
    Patent number: 7581647
    Abstract: A shale shaker (10) or vibratory separator which, in one aspect, has a base (22), vibration isolation apparatus on the base (22), a basket (12), mount apparatus (16) for mounting the basket on the base (22), and at least one of the base (22), basket (12), and the mount apparatus (16) made of, encased in, or coated with composite material which, in certain aspects, is all or part flexible composite material; and methods of using such separators and shakers.
    Type: Grant
    Filed: March 13, 2003
    Date of Patent: September 1, 2009
    Assignee: Varco I/P, Inc.
    Inventors: Charles Newton Grichar, Kenneth Wayne Seyffert, Guy L. McClung, III
  • Shale shakers
    Publication number: 20030201237
    Abstract: A shale shaker or vibratory separator which, in one aspect, has a base, vibration isolation apparatus on the base, a basket, mount apparatus for mounting the basket on the base, and at least one of the base, basket, and the mount apparatus made of, encased in, or coated with composite material which, in certain aspects, is all or part flexible composite material; and methods of using such separators and shakers.
    Type: Application
    Filed: April 26, 2002
    Publication date: October 30, 2003
    Inventors: Charles Newton Grichar, Kenneth Wayne Seyffert, Guy L. McClung