Patents by Inventor Donald Douglas Gordon Glen

Donald Douglas Gordon Glen 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).

  • System and apparatus for converting a railcar or truck trailer to multiple uses
    Patent number: 5738479
    Abstract: A system of modular attachments for a railcar or truck trailer to convert the trailer to various uses is disclosed. A system of compressed air driven locking pins allows the various modules to be readily secured to or removed from the trailer chassis. Air suspension shock absorbers permit the load to be weighed on the car or trailer.
    Type: Grant
    Filed: February 24, 1995
    Date of Patent: April 14, 1998
    Inventors: Donald Douglas Gordon Glen, Bradley Donald David Glen