Patents by Inventor Vincent A. Pardiso

Vincent A. Pardiso 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 casting a structure from cementitious
    Patent number: 4836969
    Abstract: A process for forming a hollow cast structure of cementitious material using a hollow mold having a predetermined surface geometry corresponding to the surface geometry of the structure to be cast. The cementitious material is an admixture of hydraulic cement, water and particles of aggregate containing presized, inorganic filler particles having a maximum size of about 50 microns in a predetermined proportion to the hydraulic cements such that the admixture is substantially nondilatent and thixotropic. The admixture is fed into the hollow mold against the predetermined surface geometry from a feeding device separated a predetermined distance from the mold surface while simultaneously rotating the mold relative to the admixture.
    Type: Grant
    Filed: April 30, 1987
    Date of Patent: June 6, 1989
    Assignee: Cemtech Laboratories Inc.
    Inventors: Laurence Colin, Vincent A. Pardiso