Patents by Inventor Robert Tonolla

Robert Tonolla 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 discharging a substance from a cartridge and an apparatus for carrying out the method
    Patent number: 4986443
    Abstract: The invention provides a method and an apparatus for discharging a substance contained in a cartridge or the like from the cartridge. The substance is prevented from flowing out by a sealing member provided at the outlet of the cartridge. To open the cartridge, a relative displacement between the cartridge and a coupling member mounted on the connection piece of the cartridge is effected to thereby open the sealing member by way of a cutting member provided in the coupling member. The sealing member is opened at least to such an extent that it releases the flow path of the substance contained in the cartridge fully or partially due to the pressure exerted on the sealing member by the substance contained in the cartridge during an initial phase of the discharge operation.
    Type: Grant
    Filed: July 6, 1989
    Date of Patent: January 22, 1991
    Assignee: Gurit-Essex AG
    Inventors: Wolfgang Saur, Robert Tonolla, Franz Taschke, Siegfried Staemmele