Patents by Inventor Emil B. Lee

Emil B. Lee 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).

  • Pivoted ejector with hinged door for earthmoving scrapers
    Patent number: 4071965
    Abstract: A self-loading elevating scraper is provided with a dumping or ejector mechanism for quickly and efficiently expelling the entire contents of the scraper bowl. The bowl is provided with a pivoted floor or platform and a hinged floor or platform which platforms are interconnected by links. A power source, such as a hydraulic cylinder, is mounted on the scraper and engages with one of said links such that actuation of the cylinder pivots both the pivoted floor or platform and the hinged floor or platform out of soil supporting relationship thereby permitting the soil to drop from the bowl.
    Type: Grant
    Filed: April 28, 1975
    Date of Patent: February 7, 1978
    Assignee: Caterpillar Tractor Co.
    Inventor: Emil B. Lee