Patents by Inventor Joseph G. Crabtree

Joseph G. Crabtree 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).

  • Rack and pinion steering arrangement for a riding lawnmower
    Patent number: 6572125
    Abstract: A pinion mounted at the lower end of a steering column engages a rack which is supported for movement laterally of the longitudinal axis of a riding lawnmower. Opposite ends of the rack have respective drag links pivotally mounted thereto. Free ends of the drag links are connected to the ends of respective spindle arms, each of which is rotatable about a vertical axis. Each spindle arm supports a ground-engaging wheel. When a steering wheel joined to the steering column is turned, the pinion displaces the rack. The drag links impart pivotal movement to the spindle arms to cause the wheels to turn in the direction the steering wheel has been turned.
    Type: Grant
    Filed: August 3, 2001
    Date of Patent: June 3, 2003
    Assignee: Murray, Inc.
    Inventors: Donald G. Erickson, Joseph G. Crabtree
  • Rack and pinion steering arrangement for a riding lawnmower
    Publication number: 20020017780
    Abstract: A pinion mounted at the lower end of a steering column engages a rack which is supported for movement laterally of the longitudinal axis of a riding lawnmower. Opposite ends of the rack have respective drag links pivotally mounted thereto. Free ends of the drag links are connected to the ends of respective spindle arms, each of which is rotatable about a vertical axis. Each spindle arm supports a ground-engaging wheel. When a steering wheel joined to the steering column is turned, the pinion displaces the rack. The drag links impart pivotal movement to the spindle arms to cause the wheels to turn in the direction the steering wheel has been turned.
    Type: Application
    Filed: August 3, 2001
    Publication date: February 14, 2002
    Inventors: Donald G. Erickson, Joseph G. Crabtree