Patents by Inventor Eugene Edward O'Neill

Eugene Edward O'Neill 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).

  • Process for preparing calcined gypsum
    Patent number: 4117070
    Abstract: An improved process for producing calcined gypsum which comprises continuously treating a mass of calcined gypsum by adding, with thorough blending agitation, small metered portions of water to result in the incorporation of about 1-8% free water in the mass by weight of the gypsum, allowing the blended mass to heal the calcium sulfate hemihydrate surface fissures and thereafter continuously supplying the treated gypsum mass into gypsum board production.
    Type: Grant
    Filed: March 14, 1977
    Date of Patent: September 26, 1978
    Assignee: United States Gypsum Company
    Inventor: Eugene Edward O'Neill