Patents by Inventor Dave Chirdon

Dave Chirdon 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).

  • Leak preventing device for a closed container
    Patent number: 5228477
    Abstract: A device for stopping leaks in the sidewall of a container such as a 50-55 gallon drum comprising a band of flexible but non-elastic plastic material for manually wrapping around the drum so that a central portion of the band is centered over the leak. An integral inflatable bladder on the inner surface of the central portion is inflatable by a CO.sub.2 cartridge carried on the outer surface of the central portion. A lanyard runs from a CO.sub.2 release valve to one end of the band so that an installer can stand behind the drum while pulling the lanyard to inflate the bladder.
    Type: Grant
    Filed: March 12, 1992
    Date of Patent: July 20, 1993
    Assignee: ILC Dover, Inc.
    Inventors: Dave Chirdon, Doug Durney