Patents by Inventor Joao Carlos Antunes Guimaraes

Joao Carlos Antunes Guimaraes 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).

  • Valve for a non-refillable pressurized container
    Publication number: 20050109974
    Abstract: A valve for a pressurized container is described. The valve housing has a central bore, a port in said housing to facilitate connection of a nozzle thereto, and a t-stem having a lower end with an opening. A two part poppit is positioned in the t-stem for sealing the valve. The has an elastomeric valve seat portion and a support portion for the valve seat. The support portion includes a shaft that is received in an opening of the lower end of the t-stem.
    Type: Application
    Filed: November 19, 2004
    Publication date: May 26, 2005
    Inventors: Joao Carlos Antunes Guimaraes, Tiago Oliveira