Patents by Inventor William E. Zimmer

William E. Zimmer 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).

  • Preheating apparatus
    Patent number: 4337031
    Abstract: An apparatus for preheating particulate material in which the particulate material is transferred from an upper storage bin to a lower annular flow passage by a plurality of connecting chutes and the particulate material is preheated in the annular flow passage by hot kiln gases flowing in countercurrent heat exchange relationship with the particulate material and, in addition, by hot kiln gases introduced into the annular flow passage from the lower regions of radially extending ducts.
    Type: Grant
    Filed: February 2, 1981
    Date of Patent: June 29, 1982
    Assignee: Kennedy Van Saun Corporation
    Inventors: Kenneth L. Gardner, William E. Zimmer, Samuel A. Miller