Patents by Inventor Pierre Berthollet

Pierre Berthollet 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).

  • Shrub-lifting machine with piston controlled anchor
    Patent number: 4494325
    Abstract: A machine for removing a plant from the ground with a root ball intact as in U.S. Pat. No. 4,332,093 has its tool support mounted on the tractor via a guide arrangement which allows the tractor to continue its travel as the tool support is immobilized via a fluid-operated anchor during the root ball separation operation.
    Type: Grant
    Filed: October 7, 1983
    Date of Patent: January 22, 1985
    Assignee: Societe A.C.B.
    Inventor: Pierre Berthollet
  • Apparatus for uprooting shrubs and the like
    Patent number: 4332093
    Abstract: A machine for cutting shrubs and other plants from the soil and for lifting them with their root balls intact to deposit them upon the ground or in a previously formed hole for transplanting, comprises a support mounted on the three-point hitch of a tractor and provided with a spade or blade which can be drawn downwardly below the shrub by forward movement of the tractor and then rotated through 360.degree. to free the root ball from the surrounding soil. The support also carries an arm which can engage the root neck, stalk, trunk or stem of the shrub to hold and displace it independently of the blade-carrying structure.
    Type: Grant
    Filed: July 10, 1980
    Date of Patent: June 1, 1982
    Inventor: Pierre Berthollet