Patents by Inventor Carl Schartner

Carl Schartner 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).

  • Method of testing a seal
    Publication number: 20070151086
    Abstract: The present invention is for a method of testing a seal on a collapsible tube dispensing orifice during the manufacturing process. Air pressure is applied on one side of the seal, and the pressure is monitored on the other side of the seal, for any increase in pressure which would indicate a leak in the seal.
    Type: Application
    Filed: December 29, 2005
    Publication date: July 5, 2007
    Inventors: Joseph Hayes, Carl Schartner, William Brennan