Patents by Inventor Arthur G. Crowhurst

Arthur G. Crowhurst 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).

  • Brushing and washing machine
    Patent number: 4835811
    Abstract: A mobile washing machine for washing vertical surfaces includes a brush rotatable about a vertical axis mounted on a framework adapted to be carried on the forks of a fork lift truck. The framework carries a tank for the washing fluid and a pump to pump the fluid to a series of spray nozzles. The brush is driven by a hydraulic motor supplied with hydraulic fluid from the hydraulic system on the fork lift truck.
    Type: Grant
    Filed: March 22, 1988
    Date of Patent: June 6, 1989
    Inventor: Arthur G. Crowhurst