Patents by Inventor Robert Craig Virnelson

Robert Craig Virnelson 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: 5954236
    Abstract: A multi-component dispenser (10) for dispensing at least a first fluid product (23) and a second fluid product (27) from a container (12) includes at least a first chamber (14) and a second chamber (16) situated axially therein. A conduit (32) fluidly communicates the second chamber (16) with nozzle (30) that also receives the first fluid product (23) from the first chamber (14). The rear wall (26) of the second chamber (16) includes an extension member (42) for providing substantially synchronous movement of rear wall (22) of the first chamber with rear wall (26) of the second chamber for dispensing the two fluids generally simultaneously. A hole (44) provided in side wall (18) allows air to flow into the void between the first and second chambers (14,16) to facilitate dispensing the two fluid products (23,27).
    Type: Grant
    Filed: March 18, 1998
    Date of Patent: September 21, 1999
    Inventor: Robert Craig Virnelson