Patents by Inventor Mario A. Zermeno

Mario A. Zermeno 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 of making a blind fastener
    Patent number: 5131107
    Abstract: A method for making blind fastener which comprises a fastener body, a stem and a shaped shear ring wire. The shear ring in one embodiment is disposed in an annular groove disposed intermediate the ends of a neck of the stem. When the fastener is installed, a bulbing portion of the shear ring upsets the tail end of the fastener and then shears at a predetermined load. An anchor portion of the shear ring travels through the fastener body, with the stem neck radially expanding the fastener to fill the hole within the workpieces being secured together. A lock ring groove is formed in the stem midsection of smaller diameter at the intersections of the stem neck and midsection. In another embodiment, the shear ring is positioned at the intersection so that the shear ring anchor portion engages the rear of a lock ring positioned in said lock ring groove.
    Type: Grant
    Filed: July 23, 1991
    Date of Patent: July 21, 1992
    Assignee: Textron Inc.
    Inventors: John D. Pratt, Mario A. Zermeno
  • Bulb fastener
    Patent number: 5056973
    Abstract: A blind fastener comprises a fastener body, a stem and a shaped shear ring wire. The shear ring is disposed in an annular groove disposed intermediate the ends of a neck portion of the stem. When the fastener is installed, a bulbing portion of the shear ring upsets the tail end of the fastener and then shears at a predetermined load. An anchored portion of the shear ring travels through the fastener body, with an enlarged neck portion of the stem radially expanding the fastener to fill the hole within the workpieces being secured together. A lock ring groove is formed in the stem midsection of smaller diameter at the intersections of the stem neck and midsection.
    Type: Grant
    Filed: January 31, 1990
    Date of Patent: October 15, 1991
    Assignee: Textron Inc.
    Inventors: John D. Pratt, Mario A. Zermeno
  • Bulb fastener
    Patent number: 5052870
    Abstract: A blind fastener comprises a fastener body, a stem and a shaped shear ring wire. The shear ring in one embodiment is disposed in an annular groove disposed intermediate the ends of a neck of the stem. When the fastener is installed, a bulbing portion of the shear ring upsets the tail end of the fastener and then shears at a predetermined load. An anchor portion of the shear ring travels through the fastener body, with the stem neck radially expanding the fastener to fill the hole within the workpieces being secured together. A lock ring groove is formed in the stem midsection of smaller diameter at the intersections of the stem neck and midsection. In another embodiment, the shear ring is positioned at the intersection so that the shear ring anchor portion engages the rear of a lock ring positioned in said lock ring groove.
    Type: Grant
    Filed: July 11, 1990
    Date of Patent: October 1, 1991
    Assignee: Textron, Inc.
    Inventors: John D. Pratt, Mario A. Zermeno