Patents by Inventor Paul R. Hildebrandt

Paul R. Hildebrandt 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).

  • Connections for geometric modeling kit
    Patent number: 6840699
    Abstract: A kit and structures that may be assembled using components of the kit are disclosed. The kit includes structural nodes and structural connections adapted for connecting the structural nodes. Each structural node has a polygonal openings from a central cavity to the outside of the node. Each of the structural connections has an elongated body having two ends from which stubs having a polygonal cross section extend. The stubs include at least one outward dimple positioned so that it resides within the central cavity of a structural nodes when the stub is inserted through one of the polygonal openings with the end of the elongated body abutting the structural node.
    Type: Grant
    Filed: November 1, 2002
    Date of Patent: January 11, 2005
    Assignee: Zometool, Inc.
    Inventors: Steven F. Rogers, Paul R. Hildebrandt
  • Connections for geometric modeling kit
    Publication number: 20040086327
    Abstract: A kit and structures that may be assembled using components of the kit are disclosed. The kit includes structural nodes and structural connections adapted for connecting the structural nodes. Each structural node has a polygonal openings from a central cavity to the outside of the node. Each of the structural connections has an elongated body having two ends from which stubs having a polygonal cross section extend. The stubs include at least one outward dimple positioned so that it resides within the central cavity of a structural nodes when the stub is inserted through one of the polygonal openings with the end of the elongated body abutting the structural node.
    Type: Application
    Filed: November 1, 2002
    Publication date: May 6, 2004
    Applicant: Zometool, Inc.
    Inventors: Steven F. Rogers, Paul R. Hildebrandt
  • Geometric modeling kit and method of making same
    Patent number: 4701131
    Abstract: A geometrical structural system is made up of a plurality of nodes and shape-coded connectors extending therebetween, each node having a plurality of outer polygonal elements. The outer edges of each element are bordered by end edges of other elements and each element has an opening therethrough corresponding to the outer side edges of each element. Each opening extends radially into a hollow space centrally of each node. The connectors are elongated and have opposed connecting ends with a cross-sectional configuration corresponding to a cross-sectional configuration of an opening in one of the element faces for insertion therein.
    Type: Grant
    Filed: November 20, 1985
    Date of Patent: October 20, 1987
    Inventors: Paul R. Hildebrandt, Marc G. Pelletier
  • Geometric modeling kit and method of making same
    Patent number: RE33785
    Abstract: A geometrical structural system is made up of a plurality of nodes and shape-coded connectors extending therebetween, each node having a plurality of outer polygonal elements. The outer edges of each element are bordered by end edges of other elements and each element has an opening therethrough corresponding to the outer side edges of each element. Each opening extends radially into a hollow space centrally of each node. The connectors are elongated and have opposed connecting ends with a cross-sectional configuration corresponding to a cross-sectional configuration of an opening in one of the element faces for insertion therein.
    Type: Grant
    Filed: October 18, 1989
    Date of Patent: December 31, 1991
    Inventors: Paul R. Hildebrandt, Marc G. Pelletier