Patents by Inventor Mark W. Schuller

Mark W. Schuller 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).

  • Method for forming a ball value assembly
    Patent number: 5894663
    Abstract: A method for assembling a rotary ball valve assembly utilizes an axially directed compressive force to urge an annular seal into sealing engagement with a rotatable ball and, while the compressive force is applied, inwardly deforming a tubular member attached to the housing by an electromagnetic force to form an annular abutment retaining said rotatable ball in said tubular member.
    Type: Grant
    Filed: December 10, 1997
    Date of Patent: April 20, 1999
    Assignee: Aeroquip Corporation
    Inventors: Robert J. Evans, Mark W. Schuller, Kraig A. Biberstein, Anna K. Rambo
  • Ball valve assembly and method for forming
    Patent number: 5857663
    Abstract: A rotary ball valve assembly and method for forming utilizes a compression spring subjected to a non-torsional, axially directed compressive force to urge an annular seal into sealing engagement with a rotatable ball and, while so subjected, inwardly deforming a tubular member attached to the housing by an electromagnetic force to form an annular abutment retaining said compression spring.
    Type: Grant
    Filed: December 10, 1997
    Date of Patent: January 12, 1999
    Assignee: Aeroquip Corporation
    Inventors: Robert J. Evans, Mark W. Schuller, Kraig A. Biberstein, Anna K. Rambo
  • Ball valve assembly and method for forming
    Patent number: 5735047
    Abstract: A rotary ball valve assembly and method for forming utilizes a compression spring subjected to a non-torsional, axially directed compressive force to urge an annular seal into sealing engagement with a rotatable ball and, while so subjected, inwardly deforming a tubular member attached to the housing by an electromagnetic force to form an annular abutment retaining said compression spring.
    Type: Grant
    Filed: October 15, 1996
    Date of Patent: April 7, 1998
    Assignee: Aeroquip Corporation
    Inventors: Robert J. Evans, Mark W. Schuller, Kraig A. Biberstein, Anna K. Rambo