Patents by Inventor Douglas N. Davies

Douglas N. Davies 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).

  • Mower coupling system
    Patent number: 6098388
    Abstract: A coupling system for a lawn maintenance machine having at least one cutting unit comprises a pivoting device for pivoting the cutting unit around a pivot axis parallel to a traveling direction and substantially coincidental with a point of contact between the cutting unit and a surface upon which the cutting unit is supported; and, a yoke attached to the pivoting device, the yoke configured for attachment to a motive unit.
    Type: Grant
    Filed: December 23, 1997
    Date of Patent: August 8, 2000
    Inventor: Douglas N. Davies
  • Flex head turf cutting unit
    Patent number: 5950409
    Abstract: Carriage suspension for supporting a reel mower cutting unit. Two or more elongated rollers extend between opposing ends of the carriage suspension. An arm is provided on at least one end of the carriage suspension. The arm is mounted to the carriage suspension by a pivot mechanism, and is configured for supporting one end of each of the rollers. Coupling members are provided on each end of the rollers, and the coupling members are configured for permitting the angular orientation of a longitudinal axis of each of the rollers to vary relative to the carriage suspension.
    Type: Grant
    Filed: May 16, 1997
    Date of Patent: September 14, 1999
    Inventor: Douglas N. Davies