Patents by Inventor Donald R. Wade

Donald R. Wade 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).

  • Coupling apparatus
    Patent number: 5348351
    Abstract: A coupling apparatus is provided for quick coupling of pumping equipment to a cylindrical member.
    Type: Grant
    Filed: January 31, 1994
    Date of Patent: September 20, 1994
    Assignee: LaFleur Petroleum Services, Inc.
    Inventors: Karl K. LaFleur, Donald R. Wade
  • Coupling apparatus
    Patent number: 5282653
    Abstract: A coupling apparatus is provided for quick coupling of pumping equipment to a cylindrical member. The coupling apparatus includes at least one sealing member that may be hydraulically biased to provide a fluid tight seal between the coupling apparatus and a cylindrical member.
    Type: Grant
    Filed: December 18, 1991
    Date of Patent: February 1, 1994
    Assignee: LaFleur Petroleum Services, Inc.
    Inventors: Kark K. LaFleur, Donald R. Wade
  • Coupling apparatus
    Patent number: 5152554
    Abstract: A coupling apparatus is provided for quick coupling of surface pumping equipment to a cylindrical member. The cylindrical member is engaged by dogs which are urged into locking position about the cylindrical member.
    Type: Grant
    Filed: December 18, 1990
    Date of Patent: October 6, 1992
    Assignee: LaFleur Petroleum Services, Inc.
    Inventors: Karl K. LaFleur, Donald R. Wade