Patents by Inventor Mark R. Zawlocki

Mark R. Zawlocki 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).

  • Rock crusher seal
    Patent number: 6536693
    Abstract: A socket seal for a gyratory crusher is comprised of a ring with a pair of lips extending therefrom. The ring can have an outwardly expanding dovetail which is inserted into a slot in the piston or hemispherical bearing socket. The seal prevents downward flow of oil from the lubricated space between the hemispherical bearing ball and socket.
    Type: Grant
    Filed: January 5, 2001
    Date of Patent: March 25, 2003
    Assignee: Sandvik AB
    Inventors: Albert J. Van Mullem, Bernard R. McCready, Mark R. Zawlocki
  • Rock crusher seal
    Publication number: 20020088885
    Abstract: A socket seal for a gyratory crusher is comprised of a ring with a pair of lips extending therefrom. The ring can have an outwardly expanding dovetail which is inserted into a slot in the piston or hemispherical bearing socket. The seal prevents downward flow of oil from the lubricated space between the hemispherical bearing ball and socket.
    Type: Application
    Filed: January 5, 2001
    Publication date: July 11, 2002
    Applicant: Nordberg Inc
    Inventors: Albert J. Van Mullem, Bernard R. McCready, Mark R. Zawlocki
  • Lubricating groove pattern for a journal bearing
    Patent number: 6241394
    Abstract: A journal bearing including a generally cylindrical outer surface, and a generally cylindrical inner surface including an inner edge, an outer edge, a midline defined as a circumferential line midway between the inner edge and the outer edge, a least-loaded region and a highest-loaded region, and a first groove pattern symmetric about the midline, the pattern extending from the least-loaded region to the highest-loaded region, the pattern including a lubricant entry point on the midline in the least-loaded region, a lubricant reservoir on the midline on the opposite side of the highest-loaded region from the lubricant entry point, and substantially more grooving in the least-loaded region than in the highest-loaded region.
    Type: Grant
    Filed: January 28, 2000
    Date of Patent: June 5, 2001
    Assignee: Hurnischfeger Technologies, Inc.
    Inventors: Harvey J. Kallenberger, Mark R. Zawlocki