Patents by Inventor Nicolaas G. Pheiffer

Nicolaas G. Pheiffer 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: 6290211
    Abstract: A gardening tool for pulling weeds and other digging work. The gardening tool includes a rod. The rod is elongate and has a first end and a second end. The first end has a well extending therein. The rod has a hole extending therethrough. The hole is positioned generally adjacent to the first end and extending through the well. At least one head has a first portion securely coupled to a second portion. The first portion comprises a cylinder, which is removably extendable in the well. The cylinder has an opening extending therethrough and orientated generally perpendicular to a longitudinal axis of the cylinder. A first of the heads has a second portion comprises a plate. The plate generally is in a plane orientated parallel to the longitudinal axis. A free end of the plate extends outwardly away from the first portion. Each of a plurality of spikes is integrally coupled to and extends away from the free end of the plate.
    Type: Grant
    Filed: November 3, 2000
    Date of Patent: September 18, 2001
    Inventor: Nicolaas G. Pheiffer