Patents by Inventor Ralph F. Divirgilio

Ralph F. Divirgilio 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).

  • Patent number: 4586720
    Abstract: A seal for use on the tapered section of a roll neck in a rolling mill. The seal has a flexible circular body with a circular lip and a circular flange at one end thereof. The lip extends axially from the body and the flange extends radially from the body and normal or perpendicular with respect to the body axis when the seal is in an unstressed condition. The seal is adapted to be axially received on and to be radially stressed by the tapered roll neck section with an accompanying radial expansion of the lip which produces a circumferential bending moment tending to angularly distort the flange from its perpendicular orientation to the seal axis. An internal circular shoulder on the seal body, coacts with the tapered roll neck section to counteract the bending moment and thereby prevent distortion of the flange.
    Type: Grant
    Filed: January 23, 1985
    Date of Patent: May 6, 1986
    Assignee: Morgan Construction Company
    Inventors: Thomas E. Simmons, Ralph F. Divirgilio, Charles L. Innis, Jr.
  • Patent number: 4585236
    Abstract: A circular coolant seal has a base flange arranged in a base plane perpendicular to the seal axis. A flexible resilient sealing flange is integrally joined at one edge to the base flange and terminates at its opposite edge in a sealing lip located in a sealing plane parallel to and spaced axially from the base plane. The sealing lip has a first portion extending from the base flange angularly away from the base plane and inwardly towards the seal axis to an intermediate hinge portion, and a second portion extending from the hinge portion away from the seal axis and angularly towards the sealing plane. The configuration, flexibility and resilience of the sealing flange is such that axial displacement of the sealing lip in relation to the base flange is accompanied by both axial and radial displacement of the hinge portion.
    Type: Grant
    Filed: March 14, 1985
    Date of Patent: April 29, 1986
    Assignee: Morgan Construction Company
    Inventors: Thomas E. Simmons, Charles L. Innis, Ralph F. DiVirgilio
  • Patent number: 4455856
    Abstract: A coolant seal for use in a rolling mill wherein the neck of a roll is rotatably supported in an oil film bearing contained within a bearing chock, with a seal assembly located between the roll end face and the bearing chock to retain oil in the bearing and to exclude contaminants such as cooling water, mill scale, etc. from the bearing. The seal assembly includes a circular seal end plate fixed relative to the bearing chock at a location surrounding a circular flanged seal mounted on the roll neck for rotation therewith. The coolant seal is circular, with a radially disposed mounting flange integrally joined at its inner edge to a sealing flange extending angularly and flexibly therefrom. The mounting flange is secured to a mounting surface on the seal end plate at a location placing the sealing flange in frictional contact with the roll end face.
    Type: Grant
    Filed: April 4, 1983
    Date of Patent: June 26, 1984
    Assignee: Morgan Construction Company
    Inventors: Lowell S. Salter, Jr., Ralph F. Divirgilio, Russell A. Brickey