Patents by Inventor John C. Ziegert

John C. Ziegert 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).

  • Patent number: 8651156
    Abstract: The present invention provides an improved shear band for use in non-pneumatic tires, pneumatic tires, and other technologies. The improved shear band is uniquely constructed of honeycomb shaped units that can replace the elastomeric continuum materials such as natural or synthetic rubber or polyurethane that are typically used. In particular, honeycomb structures made of high modulus materials such as metals or polycarbonates are used that provide the desired shear strains and shear modulus when subjected to stress. When used in tire construction, improvements in rolling resistance can be obtained because of less mass being deformed and reduced hysteresis provided by these materials. The resulting mass of the shear band is greatly reduced if using low density materials. Higher density materials can be used (such as metals) without increasing mass while utilizing their characteristic low energy loss.
    Type: Grant
    Filed: June 18, 2010
    Date of Patent: February 18, 2014
    Assignees: Compagnie Generale des Etablissements Michelin, Michelin Recherche et Technique S.A.
    Inventors: Georges M. Fadel, Jaehyung Ju, Ashwin Michaelraj, Prabhu Shankar, Joshua D. Summers, John C. Ziegert
  • Patent number: 8545142
    Abstract: The present invention relates generally to deformation machining systems and methods that combine, in a single machine tool setup, the machining of thin structures and single point incremental forming (SPIF), such that novel part geometries and enhanced material properties may be obtained that are not achievable using conventional machining or forming systems and methods, individually or collectively. Important to many applications, lighter weight parts may be produced at lower cost using a conventional 3-axis computer numerically controlled (CNC) machine tool or the like, instead of the conventional 5-axis CNC machine tool or the like that is typically required.
    Type: Grant
    Filed: March 6, 2009
    Date of Patent: October 1, 2013
    Assignees: University of North Carolina at Charlotte, Clemson University, Northwestern University
    Inventors: Kevin Scott Smith, Bethany A. Woody, John C. Ziegert, Jian Cao
  • Patent number: 8231948
    Abstract: A method of forming integral articles having non-line-of-site contours includes the steps of providing a plurality of molds, the molds having at least one mold channel therethrough. The plurality of molds are stacked on one another to form a mold stack, wherein at least one portion of the mold stack provides a non-line of sight multi-level channel through at least partial overlap of the mold channels between adjacent ones of the plurality of molds. A flowable material is applied to the mold stack. The flowable material is pressed to fill the mold channels in each of the plurality of molds to form an integral article comprising a plurality of stacked integrally connected levels of the material, wherein through interconnection of the integrally connected levels the integral article provides at least one non-line of sight contour traversing in its thickness direction. The mold stack is then separated or removed to free the integral article.
    Type: Grant
    Filed: August 15, 2006
    Date of Patent: July 31, 2012
    Assignee: The University of Florida Research Foundation, Inc.
    Inventors: Wallace Gregory Sawyer, Tony L. Schmitz, John C. Ziegert, Jeffrey Alan Bardt, Gerald R. Bourne
  • Publication number: 20110263468
    Abstract: Embodiments of the present disclosure include electrically conductive solid lubricant transfer films, methods of making the same, and the like.
    Type: Application
    Filed: May 6, 2011
    Publication date: October 27, 2011
    Applicant: University of Florida Research Foundation, Inc.
    Inventors: John C. Ziegert, Wallace G. Sawyer, David L. Burris
  • Patent number: 7960317
    Abstract: A method for in-situ solid lubrication of sliding electrical contacts includes the steps of providing a device having a movable electrically conductive first member and an electrically conductive second member, the first and second member being in electrical contact at a slideable electrical contact, and automatically applying an electrically conductive solid lubricant transfer film to the slideable electrical contact during operation of the device. The applying step can be a deposition of the electrically conductive solid lubricant transfer film on a surface of the first member, wherein the electrically conductive solid lubricant transfer film is carried by movement of the first member to the electrical contact.
    Type: Grant
    Filed: March 8, 2006
    Date of Patent: June 14, 2011
    Assignee: University of Florida Research Foundation, Inc.
    Inventors: John C. Ziegert, Wallace G. Sawyer, David L. Burris
  • Publication number: 20110030866
    Abstract: The present invention provides an improved shear band for use in non-pneumatic tires, pneumatic tires, and other technologies. The improved shear band is uniquely constructed of honeycomb shaped units that can replace the elastomeric continuum materials such as natural or synthetic rubber or polyurethane that are typically used. In particular, honeycomb structures made of high modulus materials such as metals or polycarbonates are used that provide the desired shear strains and shear modulus when subjected to stress. When used in tire construction, improvements in rolling resistance can be obtained because of less mass being deformed and reduced hysteresis provided by these materials. The resulting mass of the shear band is greatly reduced if using low density materials. Higher density materials can be used (such as metals) without increasing mass while utilizing their characteristic low energy loss.
    Type: Application
    Filed: June 18, 2010
    Publication date: February 10, 2011
    Inventors: Georges M. FADEL, Jaehyung Ju, Ashwin Michaelraj, Prabhu Shankar, Joshua D. Summers, John C. Ziegert
  • Publication number: 20090226272
    Abstract: The present invention relates generally to deformation machining systems and methods that combine, in a single machine tool setup, the machining of thin structures and single point incremental forming (SPIF), such that novel part geometries and enhanced material properties may be obtained that are not achievable using conventional machining or forming systems and methods, individually or collectively. Important to many applications, lighter weight parts may be produced at lower cost using a conventional 3-axis computer numerically controlled (CNC) machine tool or the like, instead of the conventional 5-axis CNC machine tool or the like that is typically required.
    Type: Application
    Filed: March 6, 2009
    Publication date: September 10, 2009
    Inventors: Kevin Scott SMITH, Bethany A. Woody, John C. Ziegert, Jian Cao
  • Publication number: 20080272670
    Abstract: A method for in-situ solid lubrication of sliding electrical contacts includes the steps of providing a device having a movable electrically conductive first member and an electrically conductive second member, the first and second member being in electrical contact at a slideable electrical contact, and automatically applying an electrically conductive solid lubricant transfer film to the slideable electrical contact during operation of the device. The applying step can be a deposition of the electrically conductive solid lubricant transfer film on a surface of the first member, wherein the electrically conductive solid lubricant transfer film is carried by movement of the first member to the electrical contact.
    Type: Application
    Filed: March 8, 2006
    Publication date: November 6, 2008
    Applicant: University of Florida Research Foundation, Inc.
    Inventors: John C. Ziegert, Wallace G. Sawyer, David L. Burris
  • Publication number: 20080193781
    Abstract: A method of forming integral articles having non-line-of-site contours includes the steps of providing a plurality of molds, the molds having at least one mold channel therethrough. The plurality of molds are stacked on one another to form a mold stack, wherein at least one portion of the mold stack provides a non-line of sight multi-level channel through at least partial overlap of the mold channels between adjacent ones of the plurality of molds. A flowable material is applied to the mold stack. The flowable material is pressed to fill the mold channels in each of the plurality of molds to form an integral article comprising a plurality of stacked integrally connected levels of the material, wherein through interconnection of the integrally connected levels the integral article provides at least one non-line of sight contour traversing in its thickness direction. The mold stack is then separated or removed to free the integral article.
    Type: Application
    Filed: August 15, 2006
    Publication date: August 14, 2008
    Applicant: UNIVERSITY OF FLORIDA RESEARCH FOUNDATION, INC.
    Inventors: Wallace Gregory Sawyer, Tony L. Schmitz, John C. Ziegert, Jeffrey Alan Bardt, Gerald R. Bourne
  • Publication number: 20020020243
    Abstract: Vibrations of rotary shafts, such as shafts of cutting tools used in high speed machining, are reduced by damping structures in holes in the shafts. The damping structures comprise fingers that are urged outwardly by centrifugal force due to rotation of the shafts and that slide relative to adjacent shaft surfaces due to shaft vibrations, so that vibrational energy is absorbed frictionally. Chatter, a self-excited vibration of a cutting tool, can be substantially reduced in this manner.
    Type: Application
    Filed: May 18, 2001
    Publication date: February 21, 2002
    Inventor: John C. Ziegert
  • Patent number: 6086283
    Abstract: A coordinate measuring machine (CMM), including three spherical base joints, a device for maintaining the base joints in a fixed spaced relation, and six actuator assemblies each having a variable length. Each of the base joints has a first end of two of the six actuator assemblies connected therewith, respectively. A center pole is provided having a first spherical joint connected to a first end thereof and a second spherical joint connected to a second end thereof. A second end of a first one of each of the two actuator assemblies connected to each of the base joints is connected to the first spherical joint of the center pole, and a second end of a second one of each of the two actuator assemblies connected to each of the base joints is connected to the second spherical joint of the center pole, in a manner which forms a hexahedron.
    Type: Grant
    Filed: March 18, 1998
    Date of Patent: July 11, 2000
    Assignee: University of Florida
    Inventor: John C. Ziegert
  • Patent number: 5797191
    Abstract: A coordinate measuring machine (CMM), including three spherical base joints, a device for maintaining the base joints in a fixed spaced relation, and six actuator assemblies each having a variable length. Each of the base joints has a first end of two of the six actuator assemblies connected therewith, respectively. A center pole is provided having a first spherical joint connected to a first end thereof and a second spherical joint connected to a second end thereof. A second end of a first one of each of the two actuator assemblies connected to each of the base joints is connected to the first spherical joint of the center pole, and a second end of a second one of each of the two actuator assemblies connected to each of the base joints is connected to the second spherical joint of the center pole, in a manner which forms a hexahedron.
    Type: Grant
    Filed: September 25, 1996
    Date of Patent: August 25, 1998
    Assignee: University of Florida
    Inventor: John C. Ziegert
  • Patent number: 5428446
    Abstract: A ball bar gage for obtaining the accuracy of numerical control machines and the like including telescoping means integrated with an interferometer and the method of measuring the distances between two locations including an initialization process that ascertains the absolute length of the distance being measured from the differential changes in length measured by the interferometer and a computer that calculates by a trilateration computation 2 or 3 dimensional coordinates by computing the measurements obtained by the ball bar gage. A laser beam or other light source are contemplated to energize the interferometer. Similar calculations are performed with the ball bar gage and computer over a number of spatial locations commensurate with determining the accuracy of the machine being evaluated.
    Type: Grant
    Filed: July 11, 1994
    Date of Patent: June 27, 1995
    Inventors: John C. Ziegert, Christopher D. Mize