Patents by Inventor Brian Rachwitz

Brian Rachwitz 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).

  • LIFT-ASSISTED MANHOLE COVER
    Publication number: 20070274779
    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: May 24, 2006
    Publication date: November 29, 2007
    Applicant: EAST JORDAN IRON WORKS, INC.
    Inventors: Jeremy Johnson, Lee Veldboom, Scott Beal, Herbert Barnum, William Austin, James Malpass, Todd Loviska, Brian Rachwitz, Rex Garringer, John Snyder