Patents by Inventor Andre St. Louis

Andre St. Louis 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).

  • Tractor fifth wheel bearing attachment
    Patent number: 4542912
    Abstract: A fifth wheel bearing attachment for mounting on a tractor and avoiding the necessity of providing oil or grease to lubricate the attachment. The improvement to the attachment comprises an antifriction polyolefin plastic sheet covering to fit over a circular fifth wheel metal bearing plate and over two sloped flanges of the fifth wheel attachment. The plastic sheet is attached to the bearing plate and the flanges. Two protective riser bars located on the outside of the two sloped flanges act as protection for the sheet when the tractor is coupled to the trailer.
    Type: Grant
    Filed: December 6, 1983
    Date of Patent: September 24, 1985
    Assignee: Cham-Co Plastic Industries Inc.
    Inventor: Andre St. Louis