Patents by Inventor Cesar W. Mujica

Cesar W. Mujica 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: 6182798
    Abstract: A mobile lifting device includes a car having a gate and a docking plate mechanically interconnected at one end of the car. A low voltage DC control system includes an “up” circuit, a “down” circuit connected in parallel with the up circuit, and a sensor circuit in series with the up circuit and down circuit. The sensor circuit includes a plurality of series connected switches for automatically preventing operation of the lifting device if predetermined conditions are not met. The “up” circuit includes a switch positioned on a stage and connected to the control circuit by a coiled cable. A wand on the switch engages a knob on the side of the car when the car reaches the level of the stage, actuating the switch to stop the car. In the event of a power failure, a battery supplies power for opening a solenoid valve to lower the car. Three control panels are provided, one at each end of the car and one in the middle of the car.
    Type: Grant
    Filed: July 26, 1994
    Date of Patent: February 6, 2001
    Assignee: AGM Container Controls, Inc.
    Inventors: Kevin Brady, Robert O. Crowley, Cesar W. Mujica