Patents by Inventor Donald M. Fell

Donald M. Fell 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: 5058957
    Abstract: A container for sorting and collecting of recoverable waste products has fixed partitions providing discrete compartments for those products. Each compartment incorporates its own independently sloped floor. At the bottom of the slope of each compartment is an exteriorly communicable door which allows for unloading of the container without the tipping of the container. Loading doors at the tops of the compartments allow for easier loading of the container. The rear compartment has a rearwardly opening unloading door, while the intermediate and forward compartments preferably open and unload through side doors. The top of the structure is open for loading. A cover and connection between the apparatus and the cover is disclosed herein. The container is made to tow behind a powered vehicle and is mounted upon an undercarriage with wheels.
    Type: Grant
    Filed: April 9, 1990
    Date of Patent: October 22, 1991
    Inventor: Donald M. Fell
  • Patent number: 5054989
    Abstract: A skid-steer crane attachment is connected to the attachment plate at the front of skid-steer lift arms by a mounting plate and upper and lower mounting brackets. A central boom support is welded to the plate, and a rectangular outer tube is welded to the upper end of the boom support. Angle supports are welded between the outer tube and upper corners of the mounting plate to make the outer tube rigid. A rectangular cross-sectional boom slides within the outer tube and is held in raised, lowered and intermediate positions with a lock pin aligned holes in the boom and outer tube. Booms are extended and lowered with small hand winches and with hydraulics from the supply on the skid-steer. A winch is mounted on the outer tube. A cable extends from a winding reel on the winch, over a sheave and down to a hook which hangs in front of the boom. In one embodiment, the boom support is mounted at an angle to the mounting plate and the outer tube is positioned at the same angle on the upper end of the boom support.
    Type: Grant
    Filed: August 24, 1989
    Date of Patent: October 8, 1991
    Inventor: Donald M. Fell