Patents by Inventor Lee M. Veldboom

Lee M. Veldboom 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).

  • Swing-out manhole cover
    Patent number: 7832958
    Abstract: A swing-out manhole cover assembly having at least one ramp to facilitate opening and closing the cover. The manhole cover assembly includes a frame, a cover, a swing assembly and at least one ramp. As the cover swings open away from the frame about the swing assembly, the ramp imparts linear translation to the cover separating the cover from the frame slightly. As the cover swings back to close the manhole cover, the ramp reverses the linear translation and the cover returns back to the frame. A spring may be included to bias the cover in the closed position.
    Type: Grant
    Filed: November 27, 2007
    Date of Patent: November 16, 2010
    Assignee: East Jordan Iron Works, Inc.
    Inventors: Lee M. Veldboom, Kevin S. Vrondran, Jeremy I. Johnson
  • LIFT-ASSISTED MANHOLE COVER
    Publication number: 20080138153
    Abstract: A lift-assisted manhole cover assembly with a flush surface and external pivot shaft. The cover includes a mounting tab that extends beyond the general periphery of the cover. The mounting tab may be connected to a shaft that is threadedly engaged with the frame. A spring may be mounted between the frame and the mounting tab, for example, in a sleeve, to provide a mechanical assist in lifting the cover. The sleeve may be disposed outside the manhole opening where it does not block access to the manhole opening.
    Type: Application
    Filed: January 4, 2008
    Publication date: June 12, 2008
    Applicant: EAST JORDAN IRON WORKS, INC.
    Inventors: Jeremy I. Johnson, Lee M. Veldboom, Scott B. Beal, Herbert Carl Barnum, William R. Austin, James F. Malpass, Todd C. Loviska, Brian J. Rachwitz, Rex A. Garringer, John H. Snyder
  • Lift-assisted manhole cover
    Patent number: 7341398
    Abstract: A lift-assisted manhole cover assembly with a flush surface and external pivot shaft. The cover includes a mounting tab that extends beyond the general periphery of the cover. The mounting tab may be connected to a shaft that is threadedly engaged with the frame. A spring may be mounted between the frame and the mounting tab, for example, in a sleeve, to provide a mechanical assist in lifting the cover. The sleeve may be disposed outside the manhole opening where it does not block access to the manhole opening.
    Type: Grant
    Filed: May 24, 2006
    Date of Patent: March 11, 2008
    Assignee: East Jordan Iron Works, Inc.
    Inventors: Jeremy I. Johnson, Lee M. Veldboom, Scott B. Beal, Herbert Carl Barnum, William R. Austin, James F. Malpass, Todd C. Loviska, Brian J. Rachwitz, Rex A. Garringer, John H. Snyder