Patents by Inventor Estel R. Snyder

Estel R. Snyder 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).

  • Construction material in sheet form and method of joining sheets edge-to-edge
    Patent number: 4071993
    Abstract: A construction material in sheet form having at least two water barriers including a water-impermeable foamed intermediate layer, a mineral-based interior layer, and a prefinished, weatherable, water-impermeable non-asphaltic outer layer, with adjoining layers firmly adhered. Sheets of the construction material having a foamed intermediate layer and mitered edges exposing the foamed layers are joined by the steps of positioning the sheets with the mitered edges abutting opposite sides of the stem of a bulb-T rafter, the sheets being supported by the cross-member of the bulb-T rafter, forming a foam filler in the cavity created by the abutted mitered edges, and sealing the cavity with weatherable tape. A roof deck for use with bulb-T rafters, the roof deck constructed of the aforementioned sheets joined by the aforementioned method is also shown.
    Type: Grant
    Filed: July 6, 1976
    Date of Patent: February 7, 1978
    Assignee: Grefco, Inc.
    Inventors: Sherman A. Stewart, Estel R. Snyder
  • Twin membrane, self sealing, mechanically fastened insulated roof deck system
    Patent number: 4063395
    Abstract: A roofing system comprising a fire resistant rigid class A fire rated board as a substrate having bonded thereto a sheet of foamed, insulating resin and having a tough weather resistant membrane bonded to the upper surface. A ledge of substrate about 1/2 inch wide protrudes beyond the formed sheet to enable the composite to be fastened to a steel roof or the like by mechanical fasteners. The channel formed by the abutting roofing panels is filled with insulating foam and covered with a membrane strip which is attached at its edges to the membrane surface of the roofing panel.
    Type: Grant
    Filed: May 10, 1974
    Date of Patent: December 20, 1977
    Assignee: Grefco, Inc.
    Inventors: Sherman A. Stewart, Estel R. Snyder, David L. Ruff
  • Twin membrane, self sealing, mechanically fastened insulated roof deck system
    Patent number: 3958373
    Abstract: A roofing system comprising a fire resistant rigid class, a fire rated board as a substrate having bonded thereto a sheet of foamed, insulating resin and having a tough weather resistant membrane bonded to the upper surface. A ledge of substrate about 1/2 inch wide protrudes beyond the formed sheet to enable the composite to be fastened to a steel roof or the like by mechanical fasteners. The channel formed by the abutting roofing panels is filled with insulating foam and covered with a membrane strip which is attached at its edges to the membrane surface of the roofing panel.
    Type: Grant
    Filed: May 14, 1975
    Date of Patent: May 25, 1976
    Assignee: Grefco, Inc.
    Inventors: Sherman A. Stewart, Estel R. Snyder, David L. Ruff