Patents by Inventor Michael L. Berzenye

Michael L. Berzenye 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: 4736976
    Abstract: A pipe hook element including a protective boot wherein the material of the boot is resilient and will prevent damage to a pipe being lifted by a pair of pipe hooks through conventional hoisting apparatus. The protective boot is of such a character and shape to be replaceable upon wear and may also include additional protective material of preferably a different material than the boot for use in protecting critical areas of the pipe upon lifting contact.
    Type: Grant
    Filed: March 3, 1986
    Date of Patent: April 12, 1988
    Inventor: Michael L. Berzenye
  • Patent number: 4171840
    Abstract: A wire rope sling having a coating for protecting material lifted thereby, and having eyes at both ends for engaging a crane hook. The coating is a flexible, abrasion resisting plastic, such as urethane, positioned on a substantial part of the sling intermediate the eyes. The coating is fixed to the wire rope and thick enough to withstand the maximum load of the wire rope.
    Type: Grant
    Filed: January 23, 1978
    Date of Patent: October 23, 1979
    Inventor: Michael L. Berzenye
  • Patent number: 3992048
    Abstract: A belt chain sling for material handling, including a plurality of chain lengths, spacer means and means interlaced with said chain lengths for creating unitary movement and aligning the chain lengths yet allowing flexibility and non-kinking of the sling. The flexibility of the sling allows girdling or binding of material for either movement or tying down of the material.
    Type: Grant
    Filed: March 19, 1975
    Date of Patent: November 16, 1976
    Inventor: Michael L. Berzenye