Patents by Inventor Henry P. Dellinger

Henry P. Dellinger 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).

  • Aerator for lawns and the like
    Patent number: 5020602
    Abstract: An aerator for lawns and the like has spiders formed of four identically formed members. Each member has a tine on each end, so four members provide eight tines for the spider. The members are relatively narrow, and filler members at each side of the tine members provide stability to the spider. The spiders are carried by a frame, and the frame carries a weight-receiving tray for carrying weight to assure penetration of the tines. Springs carry the tray on the frame so the springs will absorb the energy if the tines engage an impenetrable object.
    Type: Grant
    Filed: March 5, 1990
    Date of Patent: June 4, 1991
    Inventor: Henry P. Dellinger
  • Cultivating implement
    Patent number: D251768
    Type: Grant
    Filed: April 7, 1977
    Date of Patent: May 8, 1979
    Inventor: Henry P. Dellinger
  • Rotary cultivating tool
    Patent number: D268000
    Type: Grant
    Filed: December 4, 1980
    Date of Patent: February 22, 1983
    Inventor: Henry P. Dellinger
  • Rotary cultivating tool
    Patent number: D273656
    Type: Grant
    Filed: June 5, 1981
    Date of Patent: May 1, 1984
    Inventor: Henry P. Dellinger