Patents by Inventor Bob L. Frost

Bob L. Frost 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: 4326439
    Abstract: Each row of uncured brick is arranged with a longitudinal axis extending transversely across the width of a push-off table and is serially pushed by preceding rows past the end of the table. An elevator device registers a first platform with the end of the push-off table to receive a first row(s) and a second platform vertically spaced therefrom to receive a second row(s). The upper and lower row(s) are then simultaneously pushed from the elevator onto the upstream end of a marshalling table to form a two layer stack. A first shuttle device includes a plurality of shorter, longitudinally extending bars interspersed between the bars forming the marshalling table. The bars of the shuttle device are vertically movable between a first position beneath the level of the marshalling table bars, and a second position above such level supporting the bricks thereon.
    Type: Grant
    Filed: March 26, 1980
    Date of Patent: April 27, 1982
    Assignee: Clarksville Machine Works, Inc.
    Inventors: Bob L. Frost, Harry D. Leeds, Joseph E. Eckart