Patents by Inventor Douglas L. Scheerhorn

Douglas L. Scheerhorn 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: 6546684
    Abstract: A knock-down partition panel frame includes a pair of spaced apart generally upright posts, each having at least one receptacle defining a tapered surface. The partition panel frame further includes at least one generally horizontal member extending between and interconnecting the posts. The horizontal member includes fastenerless connectors at opposite ends thereof, each having at least one connecting element engaging with the tapered surface to thereby securely interconnect the posts and the horizontal member to define a rigid partition frame having an interior space. A cover panel is secured to the partition frame, and closes off at least a portion of the interior space.
    Type: Grant
    Filed: April 5, 2001
    Date of Patent: April 15, 2003
    Assignee: Steelcase Development Corporation
    Inventors: Michael L. Waalkes, Marcus K. Pressnell, Mark T. Slager, Michael R. Shields, Brian J. Kane, Robin Christopher, Dennis J. Boyle, Peter N. Skillman, Charles A. Seiber, Joseph Chang, Richard S. Hand, Douglas L. Scheerhorn
  • Publication number: 20020029529
    Abstract: A partition includes at least two vertical posts with upper and lower beams having opposite ends thereof interconnecting the vertical posts to define when in an assembled condition, a rigid panel frame having a substantially open interior. The panel frame defines a vertical dimension. At least one cover panel is configured to enclose at least a portion of the open interior of the panel frame, and is removably mounted on the panel frame to readily access the open interior thereof. The cover panel defines an interior surface and a center portion spaced-apart from the posts. A cover panel brace is connected with the upper beam, and has an outer surface abutting the interior surface of the cover panel to support the cover panel adjacent the center portion to prevent flexing of the cover panel. The cover panel brace is longitudinally extensible to accommodate variations of the vertical dimension between the upper and lower beams.
    Type: Application
    Filed: April 5, 2001
    Publication date: March 14, 2002
    Inventors: Michael L. Waalkes, Marcus K. Pressnell, Mark T. Slager, Michael R. Shields, Brian J. Kane, Robin Christopher, Dennis J. Boyle, Peter N. Skillman, Charles A. Seiber, Joseph Chang, Paul J. Granzotto, Richard S. Hand, Kevin J. Longhurst, Theodore Q. Chau, Douglas L. Scheerhorn, John L. McCrackin
  • Patent number: 6276103
    Abstract: A partition includes at least two vertical posts with upper and lower beams having opposite ends thereof interconnecting the vertical posts to define when in an assembled condition, a rigid panel frame having a substantially open interior. The panel frame defines a vertical dimension. At least one cover panel is configured to enclose at least a portion of the open interior of the panel frame, and is removably mounted on the panel frame to readily access the open interior thereof. The cover panel defines an interior surface and a center portion spaced-apart from the posts. A cover panel brace is connected with the upper beam, and has an outer surface abutting the interior surface of the cover panel to support the cover panel adjacent the center portion to prevent flexing of the cover panel. The cover panel brace is longitudinally extensible to accommodate variations of the vertical dimension between the upper and lower beams.
    Type: Grant
    Filed: April 21, 2000
    Date of Patent: August 21, 2001
    Assignee: Steelcase Development Inc.
    Inventors: Michael L. Waalkes, Marcus K. Pressnell, Mark T. Slager, Michael R. Shields, Brian J. Kane, Robin Christopher, Dennis J. Boyle, Peter N. Skillman, Charles A. Seiber, Joseph Chang, Paul J. Granzotto, Richard S. Hand, Kevin J. Longhurst, Theodore Q. Chau, Douglas L. Scheerhorn, John L. McCrackin
  • Patent number: 6098358
    Abstract: A knock-down portable partition including a panel frame having a central portion. At least one cover panel covers at least a portion of the central portion of the panel frame. Connectors detachably mount the cover panel on the panel frame to facilitate assembly and removable of the cover panel on the panel frame. The panel frame includes at least two vertical posts each having an upper end, a lower end and opposite faces with at least two beam connection ports thereon positioned adjacent the upper and lower ends of the associated one of the posts. The panel frame also includes upper and lower beams extending generally horizontally between the vertical posts adjacent the upper and lower ends thereof, and interconnecting the same adjacent the connection ports. Movable lock members having a flexible extension are positioned on one of the posts and the beams adjacent the connection ports, and are movably mounted thereon for shifting between an unlocked position and a locked position.
    Type: Grant
    Filed: April 15, 1998
    Date of Patent: August 8, 2000
    Assignee: Steelcase Development Inc.
    Inventors: Michael L. Waalkes, Marcus K. Pressnell, Mark T. Slager, Michael R. Shields, Brian J. Kane, Robin Christopher, Dennis J. Boyle, Peter N. Skillman, Charles A. Seiber, Joseph Chang, Paul J. Granzotto, Richard S. Hand, Kevin J. Longhurst, Theodore Q. Chau, Douglas L. Scheerhorn, John L. McCrackin