Patents by Inventor Sidney Dry

Sidney Dry 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).

  • Reusable tight head drum by conversion to open head drum
    Patent number: 4344546
    Abstract: The elements making up the closure of a tight head drum which enables conversion to an open head drum for reuse of the drum in which the drum is formed with a curl at the upper end on which an annular loop of a top head is secured by a banding ring member having a leg portion which is turned inwardly and upwardly to secure the loop onto the curl in a high strength sealed engagement.
    Type: Grant
    Filed: March 31, 1981
    Date of Patent: August 17, 1982
    Assignee: Natico, Inc.
    Inventor: Sidney Dry