Patents by Inventor Mark R. Bunchman

Mark R. Bunchman 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).

  • Patent number: 5884811
    Abstract: A collapsible dispensing tube providing a flexible walled envelope portion having a dispensing nozzle selectively sealed with a threaded cap and a sealed base. Interlocking fasteners are formed on the inner surface of the flexible wall in opposed registry with each other at regular spaced intervals from the sealed base of the flexible wall to the dispensing nozzle. The interlocking fasteners attach the opposed inner surfaces of the flexible wall when they squeezed together from the base toward the dispensing nozzle to sequentially form transverse closure bands across the envelope portion of the tube. This limits the rearward displacement of the material in the tube that occur when the tube is squeezed in its middle and therefore eliminates the need to roll up the envelope portion of the tube to dispense the material therein.
    Type: Grant
    Filed: May 21, 1997
    Date of Patent: March 23, 1999
    Inventor: Mark R. Bunchman