Patents by Inventor Ulrich W. Neumann

Ulrich W. Neumann 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).

  • Cylinder with fiber optical position sensing device and method
    Patent number: 7552671
    Abstract: An apparatus for sensing movement of a first object relative to a second object. The apparatus includes indicia markings formed on the first object and a sensor capable of reading the indicia markings. A slipper element is secured relative to the sensor and is biased into engagement with the first object. The slipper element maintains the sensor within a predetermined range of distances from the indicia markings on the first object. In one embodiment, the first object is a piston rod of a piston assembly and the second object is a cylinder in which a piston of the piston assembly is located.
    Type: Grant
    Filed: March 3, 2006
    Date of Patent: June 30, 2009
    Assignee: Parker-Hannifin Corporation
    Inventor: Ulrich W. Neumann
  • Cylinder with fiber optical position sensing device
    Patent number: 7047865
    Abstract: A fluid-pressure actuated piston/cylinder assembly having a sensor capable of reading at least one indicia marking on a piston rod in order to determine the movement and specific location of the piston rod and cylinder relative to each other. The sensor is housed within a sealing gland that is incorporated into the piston/cylinder assembly and is isolated from the fluid pressure and external elements outside of the assembly. The method of providing a compact, accurate position detecting system for the noted piston/cylinder assembly is also set forth.
    Type: Grant
    Filed: December 14, 2004
    Date of Patent: May 23, 2006
    Assignee: Parker-Hannifin
    Inventor: Ulrich W. Neumann
  • Cylinder with optical position sensing device and method
    Patent number: 6834574
    Abstract: A fluid-pressure actuated piston/cylinder assembly having a sensor capable of reading at least one indicia marking on a piston rod in order to determine the movement and specific location of the piston rod and cylinder relative to each other. The sensor is housed within a sealing gland that is incorporated into the piston/cylinder assembly and is isolated from the internal fluid pressure and external elements. A method for determining the exact location of one of a piston rod and cylinder, relative to the other, is also set forth.
    Type: Grant
    Filed: January 2, 2003
    Date of Patent: December 28, 2004
    Assignee: Parker-Hannifin Corporation
    Inventor: Ulrich W. Neumann
  • Cylinder with optical position sensing device and method
    Publication number: 20030131724
    Abstract: A fluid-pressure actuated piston/cylinder assembly having a sensor capable of reading at least one indicia marking on a piston rod in order to determine the movement and specific location of the piston rod and cylinder relative to each other. The sensor is housed within a sealing gland that is incorporated into the piston/cylinder assembly and is isolated from the internal fluid pressure and external elements. A method for determining the exact location of one of a piston rod and cylinder, relative to the other, is also set forth.
    Type: Application
    Filed: January 2, 2003
    Publication date: July 17, 2003
    Inventor: Ulrich W. Neumann