Patents by Inventor Gabriel Pirvulescu

Gabriel Pirvulescu 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 for installing a self-piercing and self-clinching fastener
    Patent number: 10697484
    Abstract: A method of permanently attaching a fastener to a plastically deformable panel includes placing a fastener shearing edge in contact with a first surface of a panel and a die assembly in contact with an opposite second surface of the panel, and penetrating the fastener shearing edge through the panel to create a hole. The fastener shearing edge is driven into a swage formed as a recess in an end face of the die assembly to deform the fastener shearing edge outwards along the swage and into contact with the second surface of the panel. A bent portion of the panel is trapped between the deformed fastener shearing edge abutting the second surface of the panel and a tapered flange formed on an outer surface of the fastener that abuts the first surface of the panel. A die assembly and driving mechanism for attaching the fastener is also provided.
    Type: Grant
    Filed: February 7, 2018
    Date of Patent: June 30, 2020
    Assignee: RB&W MANUFACTURING LLC
    Inventors: Gabriel Pirvulescu, Michael Da Costa, Anthony Hahn
  • METHOD FOR INSTALLING A SELF-PIERCING AND SELF-CLINCHING FASTENER
    Publication number: 20190242417
    Abstract: A method of permanently attaching a fastener to a plastically deformable panel includes placing a fastener shearing edge in contact with a first surface of a panel and a die assembly in contact with an opposite second surface of the panel, and penetrating the fastener shearing edge through the panel to create a hole. The fastener shearing edge is driven into a swage formed as a recess in an end face of the die assembly to deform the fastener shearing edge outwards along the swage and into contact with the second surface of the panel. A bent portion of the panel is trapped between the deformed fastener shearing edge abutting the second surface of the panel and a tapered flange formed on an outer surface of the fastener that abuts the first surface of the panel. A die assembly and driving mechanism for attaching the fastener is also provided.
    Type: Application
    Filed: February 7, 2018
    Publication date: August 8, 2019
    Inventors: Gabriel Pirvulescu, Michael Da Costa, Anthony Hahn