Patents by Inventor Earnest M. Lee

Earnest M. 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).

  • Bulkhead assembly and counterbalance mechanism therefor
    Patent number: 4019442
    Abstract: A movable bulkhead for partitioning a truck body or the like is pivotally supported on an overhead shaft. The shaft extends transversely between a pair of trolleys which ride along tracks and are capable of differential movement thereon. A second pair of trolleys are also track mounted to support a spring-loaded counterbalance mechanism for the bulkhead. Drum and cable assemblies included in the counterbalance mechanism automatically pivot the bulkhead to a raised position when the seal of the bulkhead against the flow of the truck is broken.
    Type: Grant
    Filed: March 6, 1975
    Date of Patent: April 26, 1977
    Assignee: Roll-O-Matic Chain Company
    Inventors: Earnest M. Lee, Grady L. Clyma