Patents by Inventor Douglas P. Dennis

Douglas P. Dennis 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).

  • Nut with lug flare
    Patent number: 9322424
    Abstract: A clinch nut for attachment to a plastically deformable metal substrate is provided. The clinch nut comprises a body portion with a central axis and a punch portion extending from the body portion and coaxial with the central axis. The body portion includes an annular-shaped surface encircling the central punch portion. The annular-shaped surface includes a plurality of spaced apart lugs encircling the central punch portion. The plurality of lugs each includes a contact surface with a recessed portion where the contact surface engages the metal substrate. A first portion of the contact surface is biased outwards from the central axis upon insertion in the metal substrate to form at least one lug flare during attachment of the nut to the metal substrate. A portion of the metal substrate is entrapped between the at least one lug flare and the body portion.
    Type: Grant
    Filed: October 10, 2014
    Date of Patent: April 26, 2016
    Assignee: RB&W MANUFACTURING LLC
    Inventors: W. Richard Pamer, Douglas P. Dennis
  • Nut with lug flare
    Patent number: 8888429
    Abstract: A clinch nut for attachment to a plastically deformable metal substrate is provided. The clinch nut comprises a body portion with a central axis and a punch portion extending from the body portion and coaxial with the central axis. The body portion includes an annular-shaped surface encircling the central punch portion. The annular-shaped surface includes a plurality of spaced apart lugs encircling the central punch portion. The plurality of lugs each includes a contact surface with a recessed portion where the contact surface engages the metal substrate. A first portion of the contact surface is biased outwards from the central axis upon insertion in the metal substrate to form at least one lug flare during attachment of the nut to the metal substrate. A portion of the metal substrate is entrapped between the at least one lug flare and the body portion.
    Type: Grant
    Filed: December 22, 2009
    Date of Patent: November 18, 2014
    Assignee: JPMorgan Chase Bank, N.A.
    Inventors: W. Richard Pamer, Douglas P. Dennis
  • NUT WITH LUG FLARE
    Publication number: 20120219377
    Abstract: A clinch nut for attachment to a plastically deformable metal substrate is provided. The clinch nut comprises a body portion with a central axis and a punch portion extending from the body portion and coaxial with the central axis. The body portion includes an annular-shaped surface encircling the central punch portion. The annular-shaped surface includes a plurality of spaced apart lugs encircling the central punch portion. The plurality of lugs each includes a contact surface with a recessed portion where the contact surface engages the metal substrate. A first portion of the contact surface is biased outwards from the central axis upon insertion in the metal substrate to form at least one lug flare during attachment of the nut to the metal substrate. A portion of the metal substrate is entrapped between the at least one lug flare and the body portion.
    Type: Application
    Filed: December 22, 2009
    Publication date: August 30, 2012
    Applicant: R B & W MANUFACTURING LLC
    Inventors: W. Richard Pamer, Douglas P. Dennis