Patents by Inventor Takeji Kamei

Takeji Kamei 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).

  • Patent number: 4295972
    Abstract: A method for treating a water containing waste such as industrial sludges and animal excrements. The method comprises a first step of mixing the waste with an alkaline earth metal oxide such as calcium oxide to obtain a preliminarily dried mixture and a second step of further drying and granulation of the mixture. Fuel consumption is saved by utilization of the exothermic reaction of an alkaline earth metal oxide with water contained in the waste. The waste may be converted by the method to usable products such as fertilizers, cement materials or cement additives.
    Type: Grant
    Filed: May 7, 1980
    Date of Patent: October 20, 1981
    Assignee: Nihon Automatic Machinery Mfg. Co., Ltd.
    Inventor: Takeji Kamei
  • Patent number: 4226712
    Abstract: A method and apparatus for treating a water containing waste such as industrial sludges and animal excrements. The method comprises a first step of mixing the waste with an alkaline earth metal oxide such as calcium oxide to obtain a preliminarily dried mixture and a second step of further drying and granulation of the mixture. The apparatus comprises a reactor for a mixture of the waste and an alkaline earth metal oxide, a drying kiln equipped with a stirrer means, a furnace surrounding the drying kiln and an exhaust collector means adapted to collect an exhaust gas from the reactor and drying kiln and transfer it to the furnace. Fuel consumption is saved by utilization of the exothermic reaction of an alkaline earth metal oxide with water contained in the waste. The waste may be converted by the method to usable products such as fertilizers, cement materials or cement additives.
    Type: Grant
    Filed: April 30, 1979
    Date of Patent: October 7, 1980
    Assignee: Nihon Automatic Machinery Mfg. Co., Ltd.,
    Inventor: Takeji Kamei