Patents by Inventor Wilfried Stromberg

Wilfried Stromberg 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).

  • Chain lock for round link chain strands particularly for use in mining
    Patent number: 4706451
    Abstract: A chain lock for round chain links, particularly for use in mining, consisting of preferably congruent part links, a center portion and a locking pin. The center portion is supported on cylindrical surfaces which form the base of a recess. The recess is provided in either inner side of the inner shank of the part links and undercuts both outer sides of the shank attached to it. The center piece has cylindrical supporting surfaces on opposite sides, and a pair of flat surfaces which are pierced by the cylindrical-surfaced supports. The ends of the center piece are supported in the receiver of the shanks when the center piece is inserted. The pin pierces the center piece at an angle and protrudes with its ends above and below the surfaces of the center piece to prohibit it from being rotated.
    Type: Grant
    Filed: March 13, 1986
    Date of Patent: November 17, 1987
    Assignee: Becker-Pronte GmbH
    Inventors: Wilfried Stromberg, Theo Kuhnigk
  • Scraper for chains in chain conveyors, particularly for use underground
    Patent number: 4383603
    Abstract: A two part scraper for a chain conveyor has upper and lower parts joined along a horizontal dividing surface. The surface contains bar and groove interlocking means and at least a pair of chain beds for securing the scraper to a link of the chain.
    Type: Grant
    Filed: November 17, 1980
    Date of Patent: May 17, 1983
    Assignees: Becker-Prunte GmbH, Stahlhammer Bommern Gebr. Schneider
    Inventors: Gerhard Niemoller, Wilfried Stromberg, Friedhelm Schneider
  • Scraper for chains in chain conveyors, particularly for use underground
    Patent number: 4312443
    Abstract: A two part scraper for a chain conveyor has upper and lower parts joined along a horizontal dividing surface. The surface contains bar and groove interlocking means and at least a pair of chain beds for securing the scraper to a link of the chain.
    Type: Grant
    Filed: April 14, 1978
    Date of Patent: January 26, 1982
    Assignees: Becker-Prunte GmbH, Stahlhammer Bommern Gebr. Schneider
    Inventors: Gerhard Niemoller, Wilfried Stromberg, Friedhelm Schneider