Patents by Inventor Andrew C. Spain

Andrew C. Spain 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).

  • Shaft seal having lip supports
    Patent number: 7025357
    Abstract: A shaft seal includes an elastomeric annular body having an outwardly protruding annular lip. An annular outer case is embedded into the body. An annular insert is positioned adjacent the outer case. An annular inner case is embedded into the body adjacent the insert. The outer case, the insert, and the inner case support the lip.
    Type: Grant
    Filed: June 7, 2002
    Date of Patent: April 11, 2006
    Assignee: Freudenberg-NOK General Partnership
    Inventors: Andrew C. Spain, Robert P. LaPlante
  • Shaft seal having lip supports
    Publication number: 20020185822
    Abstract: A shaft seal includes an elastomeric annular body having an outwardly protruding annular lip. An annular outer case is embedded into the body. An annular insert is positioned adjacent the outer case. An annular inner case is embedded into the body adjacent the insert. The outer case, the insert, and the inner case support the lip.
    Type: Application
    Filed: June 7, 2002
    Publication date: December 12, 2002
    Inventors: Andrew C. Spain, Robert P. LaPlante