Patents by Inventor Ronald F. Stoltenberg

Ronald F. Stoltenberg 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: 6517019
    Abstract: A tub grinder is used for grinding industrial wastes, including large stumps, lumber chunks and the like. A cover member is pivoted alongside the tub, and is made in two sections. An upright frame section is pivoted near a plane along the bottom of the tub, and extends upwardly to a level at or adjacent to the top of the tub. A cover section is pivotally mounted to the upright frame and can be adjusted about a generally horizontal axis from a generally horizontal position to an upwardly extending position. The upright frame can be tilted outwardly so that the cover section is out of registry with the tub to permit the tub to be loaded.
    Type: Grant
    Filed: January 2, 2001
    Date of Patent: February 11, 2003
    Assignee: Duratech Industries International, Inc.
    Inventors: Aaron J. Johnson, Ronald F. Stoltenberg
  • Publication number: 20020084370
    Abstract: A tub grinder is used for grinding industrial wastes, including large stumps, lumber chunks and the like. A cover member is pivoted alongside the tub, and is made in two sections. An upright frame section is pivoted near a plane along the bottom of the tub, and extends upwardly to a level at or adjacent to the top of the tub. A cover section is pivotally mounted to the upright frame and can be adjusted about a generally horizontal axis from a generally horizontal position to an upwardly extending position. The upright frame can be tilted outwardly so that the cover section is out of registry with the tub to permit the tub to be loaded.
    Type: Application
    Filed: January 2, 2001
    Publication date: July 4, 2002
    Inventors: Aaron J. Johnson, Ronald F. Stoltenberg
  • Patent number: 5226269
    Abstract: An apparatus and method for automatically compressing and packaging loose fiber material. The fibrous material compressed in the bale tube to form a bale while a tube of bale overwrap material is being formed. The doors to the base overwrap material is being formed. The doors to the base tube open to allow the compressed material to be pushed out of the bale tube by the piston. The base overwrap material is then cut, sealed at the ends of the bale, and cooled at desired locations.
    Type: Grant
    Filed: May 22, 1992
    Date of Patent: July 13, 1993
    Assignee: Haybuster Manufacturing Inc.
    Inventor: Ronald F. Stoltenberg