Patents by Inventor Hendrix W. Springfield

Hendrix W. Springfield 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: 4898247
    Abstract: An earth scraper attachment adapted to be drawn by a farm tractor or other vehicle having a vertically adjustable three point hitch has an elongated frame with a front tongue portion connectable to the hitch with a specially designed hitch connection member. A rear end portion of the frame is supported on opposite sides of the longitudinal axis of the frame by a pair of wheels whose heights relative to the frame may be selectively and independently adjusted. Depending from a longitudinally central portion of the frame is an earth scraping blade which is supported on the frame for pivotal motion about a generally vertically extending axis, and may be locked in a selected pivotally adjusted position. A laterally spaced series of downwardly extending earth ripping teeth are supported beneath the frame forwardly of the scraping blade and are used to rip and loosen the earth prior to operation thereon by the scraping blade.
    Type: Grant
    Filed: March 13, 1987
    Date of Patent: February 6, 1990
    Inventor: Hendrix W. Springfield