Patents by Inventor Michael J. Hadley

Michael J. Hadley 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).

  • Blind fastener
    Patent number: 4242939
    Abstract: A plastics pull-type blind fastener has a pull-part with a pulling stem and legs which pass through holes in a workpiece, shoulders of the legs engaging the workpiece at the blind side, and a push-part with a head to engage the workpiece at the accessible side and a plug extending between the legs to keep them apart after setting. The legs are accommodated in complementary shaped apertures in the head of the push-part, and at least one part has teeth to lock the parts together after setting, and allow removal of the pulling stem.
    Type: Grant
    Filed: October 12, 1978
    Date of Patent: January 6, 1981
    Assignee: USM Corporation
    Inventors: Michael L. Osborne, Michael J. Hadley