Patents by Inventor Andre G. G. Marit

Andre G. G. Marit 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).

  • Lubrication means for swing gear drive
    Patent number: 3990539
    Abstract: An excavator comprises an upper unit rotatably mounted on an undercarriage by selectively driving a swing pinion against a reaction ring gear secured to the undercarriage. A semi-cylindrical grease retainer is secured to the upper unit to substantially enclose the swing pinion to continuously supply grease to meshing teeth of the respective gears. A fill-tube is secured to the retainer to communicate grease therein via a fitting disposed in an operator's cab of the excavator.
    Type: Grant
    Filed: January 23, 1975
    Date of Patent: November 9, 1976
    Assignee: Caterpillar Tractor Co.
    Inventor: Andre G. G. Marit