Patents by Inventor Rodney M. Pettigrew

Rodney M. Pettigrew 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).

  • Surface treatment apparatus
    Patent number: 5218732
    Abstract: Apparatus reconditioning artificial turf surfaces by scarifying or brushing. Scarifying rods (13) and cleaning brushes (14) are mounted to a rotary work head (31) inside a wheeled housing which is pushed over the artificial turf surface as the work head rotates against the direction of movement to lift compacted blades above their sand bed and clean them of slime coatings.
    Type: Grant
    Filed: March 16, 1992
    Date of Patent: June 15, 1993
    Inventors: Rodney M. Pettigrew, John A. Xavier