Patents by Inventor John Stilianos Agapiou

John Stilianos Agapiou 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).

  • Reconfigurable workholding fixture
    Patent number: 6877729
    Abstract: A reconfigurable fixture for workpieces is disclosed. It utilizes a flat surface magnetic chuck with modular workpiece supporting, locating and clamping elements that are carefully located on it and held by magnetic attraction to it. These elements are precisely located to hold the workpiece in spaced relation to the chuck surface. Some locating elements are mechanically fixed to the chuck for securing the workpiece from transverse movement on the chuck surface. Preferably, each of the supporting, locating and clamping members are fixed to separate steel bases for magnetic attraction to the chuck. Each base may also carry its own hydraulic actuator for height adjustment of a support element or for height adjustment and closure of a clamping element. These modular elements have locating slots or grooves or the like so that they can be selected from a storage magazine and located on a chuck by numerically controlled mechanisms.
    Type: Grant
    Filed: September 4, 2003
    Date of Patent: April 12, 2005
    Assignee: General Motors Corporation
    Inventors: Yhu-Tin Lin, Mark A. Kramarczyk, Gary Lee Jones, Andrew Leslie Bartos, Phillip A. Bojda, Chi-Hung Shen, John Stilianos Agapiou
  • Reconfigurable workholding fixture
    Publication number: 20040080087
    Abstract: A reconfigurable fixture for workpieces is disclosed. It utilizes a flat surface magnetic chuck with modular workpiece supporting, locating and clamping elements that are carefully located on it and held by magnetic attraction to it. These elements are precisely located to hold the workpiece in spaced relation to the chuck surface. Some locating elements are mechanically fixed to the chuck for securing the workpiece from transverse movement on the chuck surface. Preferably, each of the supporting, locating and clamping members are fixed to separate steel bases for magnetic attraction to the chuck. Each base may also carry its own hydraulic actuator for height adjustment of a support element or for height adjustment and closure of a clamping element. These modular elements have locating slots or grooves or the like so that they can be selected from a storage magazine and located on a chuck by numerically controlled mechanisms.
    Type: Application
    Filed: September 4, 2003
    Publication date: April 29, 2004
    Inventors: Yhu-Tin Lin, Mark A. Kramarczyk, Gary Lee Jones, Andrew Leslie Bartos, Phillip A. Bojda, Chi-Hung Shen, John Stilianos Agapiou
  • Reconfigurable workholding fixture
    Patent number: 6644637
    Abstract: A reconfigurable fixture for workpieces is disclosed. It utilizes a flat surface magnetic chuck with modular workpiece supporting, locating and clamping elements that are carefully located on it and held by magnetic attraction to it. These elements are precisely located to hold the workpiece in spaced relation to the chuck surface. Some locating elements are mechanically fixed to the chuck for securing the workpiece from transverse movement on the chuck surface. Preferably, each of the supporting, locating and clamping members are fixed to separate steel bases for magnetic attraction to the chuck. Each base may also carry its own hydraulic actuator for height adjustment of a support element or for height adjustment and closure of a clamping element. These modular elements can be selected from a storage magazine and located on a chuck by numerically controlled mechanisms.
    Type: Grant
    Filed: September 13, 2002
    Date of Patent: November 11, 2003
    Assignee: General Motors Corporation
    Inventors: Chi-Hung Shen, Yhu-Tin Lin, John Stilianos Agapiou, Phillip A. Bojda, Gary Lee Jones, John P. Spicer