Patents by Inventor Tom Gralewski

Tom Gralewski 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).

  • Pipe flange lifting apparatus
    Patent number: 10000363
    Abstract: The invention is directed to a flange lifting apparatus that is configured to have an upper portion that can be attached to a crane or hoist, and a lower portion that can be attached to a flange using flange attachment arms. The lifting apparatus has a support body comprising with first and second ends and an elongate opening in the support body. A movable support member has an upper portion with opening accommodating a threaded rod, and a lower portion attached to a rotatable cam that is positioned within and capable of traveling within the elongate opening of the support body. Rotation of the rod causes movement of the support member which shifts the center of gravity and causes the flange to tilt.
    Type: Grant
    Filed: August 21, 2015
    Date of Patent: June 19, 2018
    Assignee: Worldwide Machining & Welding, Inc.
    Inventors: John Anderson, Tom Gralewski
  • PIPE FLANGE LIFTING APPARATUS
    Publication number: 20160052750
    Abstract: The invention is directed to a flange lifting apparatus that is configured to have an upper portion that can be attached to a crane or hoist, and a lower portion that can be attached to a flange using flange attachment arms. The lifting apparatus has a support body comprising with first and second ends and an elongate opening in the support body. A movable support member has an upper portion with opening accommodating a threaded rod, and a lower portion attached to a rotatable cam that is positioned within and capable of traveling within the elongate opening of the support body. Rotation of the rod causes movement of the support member which shifts the center of gravity and causes the flange to tilt.
    Type: Application
    Filed: August 21, 2015
    Publication date: February 25, 2016
    Inventors: John Anderson, Tom Gralewski