Patents by Inventor Harry J. Bakker

Harry J. Bakker 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: 4645011
    Abstract: A lawn edger device is disclosed having a motor and a cutter blade supported by a platform and a handle mounted hand control for varying the depth of the cutter blade relative the ground. The platform includes a first and a second end, the first end being supported by a first set of ground engaging wheels. A first arm is pivotally connected to the second end of the platform. The distal end of the first arm rotatably supports a second set of the ground engaging wheels. A connecting arm is secured to the first arm and includes a toothed portion which cooperates with a locking plate rigidly connected to the platform. The toothed portion cooperates with the locking plate to variably adjust the longitudinal disposition of the connection arm relative the locking plate.
    Type: Grant
    Filed: April 11, 1985
    Date of Patent: February 24, 1987
    Inventors: Roger Feikema, Harry J. Bakker
  • Patent number: 4532998
    Abstract: A lawn edger device is disclosed having a motor and a cutter blade supported by a platform and a handle mounted hand control for varying the depth of the cutter blade relative the ground. The platform includes a first and a second end, the first end being supported by a first set of ground engaging wheels. A first arm is pivotally connected to the second end of the platform. The distal end of the first arm rotatably supports a second set of the ground engaging wheels. A connecting arm is secured to the first arm and includes a toothed portion which cooperates with a locking plate rigidly connected to the platform. The toothed portion cooperates with the locking plate to variably adjust the longitudinal disposition of the connecting arm relative the locking plate.
    Type: Grant
    Filed: September 29, 1983
    Date of Patent: August 6, 1985
    Inventors: Roger H. Feikema, Harry J. Bakker
  • Patent number: 4432561
    Abstract: An amusement tricycle wherein the operator is transported in an inclining position on a hammock cradle. the cradle is carried by a front wheel which does not pivot relative to the cradle. The cradle and wheel rotate about a downwardly sloping axis to turn. The cradle is supported to the rear by a two wheel buggy. The cradle is mounted on the buggy by a pivot. The pivot rotates about the axis. The buggy in turn, is stabilized by pivotal attachment to the cradle.
    Type: Grant
    Filed: May 4, 1982
    Date of Patent: February 21, 1984
    Inventors: Roger H. Feikema, Harry J. Bakker