Patents by Inventor Dennison F. Fiala

Dennison F. Fiala 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).

  • Cementitious compositions having fast-setting properties and inhibited shrinkage
    Patent number: 4157263
    Abstract: A cementitious composition which when mixed with water is capable of setting rapidly into a hard mass of high compressive strength without substantial shrinkage during setting and early hardening, which exhibits reduced long-term shrinkage, and which possesses a high degree of impermeability to liquid and vapor, is composed of a particulate mixture of portland cement, a calcined gypsum, and high alumina cement. Alternatively, such a cementitious composition can be composed of a particulate mixture of a high alumina cement and pressure calcined gypsum. Additional components such as surface active agents, gas generating or releasing agents and aggregate can be employed, if desired, for the selective improvement of specific properties.
    Type: Grant
    Filed: May 4, 1978
    Date of Patent: June 5, 1979
    Assignee: U.S. Grout Corporation
    Inventors: Robert W. Gaines, Dennison F. Fiala, Henry N. Babcock
  • Cementitious compositions having fast-setting properties and inhibited shrinkage
    Patent number: 4045237
    Abstract: A cementitious composition which when mixed with water is capable of setting rapidly into a hard mass of high compressive strength without substantial shrinkage during setting and early hardening, which exhibits reduced long-term shrinkage, and which possesses a high degree of impermeability to liquid and vapor, is composed of a particulate mixture of portland cement, a calcined gypsum, and high alumina cement. Alternatively, such a cementitious composition can be composed of a particulate mixture of a high alumina cement and pressure calcined gypsum. Additional components such as surface active agents, gas generating or releasing agents and aggregate can be employed, if desired, for the selective improvement of specific properties.
    Type: Grant
    Filed: December 6, 1974
    Date of Patent: August 30, 1977
    Assignee: U.S. Grout Corporation
    Inventors: Robert W. Gaines, Dennison F. Fiala, Henry Nash Babcock