Patents by Inventor Peter A. M. Kleinjans

Peter A. M. Kleinjans 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 the manufacture of shaped products from calcium sulphate dihydrate
    Patent number: 4190455
    Abstract: A method for the controlled manufacture of shaped products by compressing a mixture of calcium sulphate dihydrate, hydraulic cement, water and particulate silicious inorganic materials such as sand or porous inorganic materials. The manufacture is controlled to obtain a shaped product having a predetermined crushing strength in accordance with a described relationship between such predetermined crushing strength, the amount of silicious inorganic particulate material present in the mixture and the pressure exerted on the mixture during the formation of the shaped products.
    Type: Grant
    Filed: May 4, 1978
    Date of Patent: February 26, 1980
    Assignee: Stamicarbon, B.V.
    Inventors: Jan M. J. M. Bijen, Peter A. M. Kleinjans