Patents by Inventor Wilfred H. Tock

Wilfred H. Tock 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: 4128392
    Abstract: A method and apparatus for calcining finely divided material such as limestone and dolomite. The apparatus is especially useful for calcining materials having a size of less than 1/4 inch. The apparatus includes a first stage fluidized bed calcining apparatus and a second stage flash calcining apparatus. Raw material is supplied to the fluid bed reactor. The large particles are calcined within this reactor, withdrawn from the reactor and supplied to a cooler. The fines are elutriated with the spent fluidizing gas and supplied to a cyclone separator. The separated fines are supplied to a flash calciner where they are calcined. The separated spent fluidizing gases may be used as combustion gas in the flash calciner. The calcined fines are removed from the flash calciner and supplied to a cyclone separator and from there to a cooler.
    Type: Grant
    Filed: February 28, 1977
    Date of Patent: December 5, 1978
    Assignee: Fuller Company
    Inventor: Wilfred H. Tock