Patents by Inventor Stephen R. Bunn

Stephen R. Bunn 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: 5842729
    Abstract: A new lifting tongs device for lifting heavy sections of cylindrical pipe. The inventive device includes a first arm member pivotally coupled to a second arm member. A first gripping member having an arcuate pipe gripping surface is coupled to the lower end portion of the first arm member. Similarly, a second gripping member having an arcuate pipe gripping surface facing the arcuate pipe gripping surface of the first gripping member is coupled to the lower end portion of the second arm member. A first flexible member is attached to the upper end portions of the arm members to force the first gripping member arcuate pipe gripping surface towards the second gripping member arcuate pipe gripping surface to grip a cylindrical object disposed between them.
    Type: Grant
    Filed: June 26, 1997
    Date of Patent: December 1, 1998
    Inventor: Stephen R. Bunn