Patents by Inventor Stephen R. Breyer

Stephen R. Breyer 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).

  • Patent number: 6138769
    Abstract: A tool for inserting beneath a plant to sever roots, such as tap roots, that are located beneath a tree or shrub at a location relatively far from the circumference of a root ball, the tool comprising a cutting blade of generally triangular shape having a leading edge which is a relatively narrow cutting edge, and having sides angled inward from the cutting edge. The cutting blade is mounted on a long, slightly arcuate, slender shaft which is sufficiently long to reach under a tree shrub to sever roots and define a root ball in preparation for transplanting the tree or shrub.
    Type: Grant
    Filed: May 15, 1998
    Date of Patent: October 31, 2000
    Inventor: Stephen R. Breyer
  • Patent number: 5496143
    Abstract: A set of lifting hooks for lifting a tree or shrub with a root ball in preparation for transplanting said tree or shrub. A hand cart for use in lifting is also disclosed. The set of hooks positioned under the root ball may be lifted by means of attachment to the rear edge of the hand cart while said hand cart is in a vertical position and rotating said hand cart toward the horizontal. The hand cart may be supplied with long handles to provide additional leverage when they are pulled to rotate the cart from the vertical to the horizontal.
    Type: Grant
    Filed: April 11, 1994
    Date of Patent: March 5, 1996
    Inventor: Stephen R. Breyer