Patents by Inventor Kenneth L. Spragg

Kenneth L. Spragg 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).

  • Publication number: 20120079683
    Abstract: A hinge pin for pivotally connecting a door to a frame comprises a pin body extending along a pivot axis between first and second ends, and a grease nipple portion extending longitudinally from the first end of the pin body. The pin body has an outer bearing shaped to enable the door to pivot relative to the frame about the pivot axis, a cross-bore extending radially inward from the outer bearing surface into the pin body, and a longitudinal bore extending into the pin body from the first end to the cross-bore. The longitudinal bore and the cross-bore together form a lubrication passageway. The pin body also has coupling portions for coupling the pin body to the door and the frame. The grease nipple portion is shaped to be coupled to a grease applicator for injecting grease into the lubrication passageway and is integrally formed with the pin body.
    Type: Application
    Filed: June 24, 2011
    Publication date: April 5, 2012
    Inventor: Kenneth L. Spragg
  • Patent number: D633774
    Type: Grant
    Filed: August 6, 2010
    Date of Patent: March 8, 2011
    Inventor: Kenneth L. Spragg
  • Patent number: D649010
    Type: Grant
    Filed: April 26, 2011
    Date of Patent: November 22, 2011
    Inventor: Kenneth L. Spragg
  • Patent number: D649430
    Type: Grant
    Filed: April 26, 2011
    Date of Patent: November 29, 2011
    Inventor: Kenneth L. Spragg