Patents by Inventor John C. McGregor, Jr.

John C. McGregor, Jr. 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).

  • Method and apparatus for single step formation of spherical retainer
    Patent number: 4674314
    Abstract: A tool for stamping annular blanks to form retainers for truncated spherical members in a single stroke stamping operation comprises a sectored punch having at least one pair of diametrically opposed sectors of a cyclinder separated from one another at their apexes such that the sectors of two punches can be intermated. The distal ends of the sectors are spherically contoured such that alternating spherical surfaces are formed on the inside surface of the retainers by two intermating sectored punches. The sectored punches form alternating cylindrical and spherical surfaces into the upper and lower portions of a blank to form the retainer. The cylindrical surfaces permit spherical members to be inserted into the retainers by hand or with the use of hand tools.
    Type: Grant
    Filed: April 23, 1986
    Date of Patent: June 23, 1987
    Inventor: John C. McGregor, Jr.
  • Method and apparatus for single step formation of spherical retainer
    Patent number: 4604886
    Abstract: A tool for stamping annular blanks to form retainers for truncated spherical members in a single stroke stamping operation comprises a sectored punch having at least one pair of diametrically opposed sectors of a cylinder separated from one another at their apexes such that the sectors of two punches can be intermated. The distal ends of the sectors are spherically contoured such that alternating spherical surfaces are formed on the inside surface of the retainers by two intermating sectored punches. The sectored punches form alternating cylindrical and spherical surfaces into the upper and lower portions of a blank to form the retainer. The cylindrical surfaces permit spherical members to be inserted into the retainers by hand or with the use of hand tools.
    Type: Grant
    Filed: February 28, 1985
    Date of Patent: August 12, 1986
    Inventor: John C. McGregor, Jr.
  • Retainer and bearing assembly
    Patent number: 4428688
    Abstract: The present invention provides a retainer comprising a substantially planar support member having an opening therein designed to receive an annular member such as a bearing. Around the opening a plurality of slits are formed extending generally radially outwardly from the opening to form a plurality of retainer lips. The retainer lips are bent out of the plane of the support member such that the retainer will receive and fixedly engage the bearing in a snap fit. Bearing guides and steps may be used in aligning the bearing in the retainer.
    Type: Grant
    Filed: April 22, 1981
    Date of Patent: January 31, 1984
    Assignee: Pentaflex, Inc.
    Inventor: John C. McGregor, Jr.