Patents by Inventor Clifford D. Long

Clifford D. Long 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).

  • Fluid-cooled apparatus for cutting concrete material and the like
    Patent number: 4870946
    Abstract: The present invention includes a reversible concrete cutting saw blade and one or two blade attachment plates having radial grooves formed in the blade engaging faces thereof, such that when the plates and blades are joined, radial passageways are formed between the plates and the blade. An inlet tube, communicating with a rotatable inner hub introduces cooling fluid into internal passage ways within the hub under positive flow conditions, thereby causing the fluid to flow through the hub to the radial passageways in the plates and then be centrifugally dispersed down the grooves along the surfaces of the blade.
    Type: Grant
    Filed: May 7, 1987
    Date of Patent: October 3, 1989
    Assignee: Longco, Inc.
    Inventors: Richard D. Long, David L. Long, Clifford D. Long, Kenneth E. Clark