Patents by Inventor Merrill A. Cook

Merrill A. Cook 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).

  • Blasting slurry pump truck
    Patent number: 4195548
    Abstract: The present invention relates to a pump truck for handling aqueous slurry blasting agents. The truck is designed to mix and pump the slurry without the use of augers, electrical drives, hydraulic drives, ingredient flow drive motors or other such equipment, resulting in increased safety and improved function.
    Type: Grant
    Filed: February 9, 1978
    Date of Patent: April 1, 1980
    Inventors: Merrill A. Cook, Robert B. Clay
  • Blasting slurry pump truck
    Patent number: 4102240
    Abstract: The present invention relates to a pump truck for handling aqueous slurry blasting agents. The truck is designed to mix and pump the slurry without the use of augers, electrical drives, hydraulic drives, ingredient flow drive motors or other such equipment, resulting in increased safety and improved function.
    Type: Grant
    Filed: January 3, 1977
    Date of Patent: July 25, 1978
    Inventors: Merrill A. Cook, Robert B. Clay