Patents by Inventor Leonard Zimmerman

Leonard Zimmerman 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).

  • Adjustable tip caulking tube
    Patent number: 5743668
    Abstract: An adjustable tip caulking tube including a tapered nozzle having an open inner end and an open outer end. The open inner end has a diameter greater than a diameter of the open outer end. The open inner end couples with an opening in a front end of a caulking tube. A dial couples with the tapered nozzle whereby movement of the dial away from the open outer end will reduce the diameter thereof.
    Type: Grant
    Filed: August 8, 1996
    Date of Patent: April 28, 1998
    Inventor: Leonard Zimmerman