Patents by Inventor Robert Charles Brennan

Robert Charles Brennan 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).

  • Filling process for dual fluid cartridge assemblies
    Patent number: 6848480
    Abstract: A method for filling a dual fluid cartridge assembly which automatically bleeds air from the cartridge to filling and without extra steps or a vacuum as in known filling methods. In particular, the process relates to providing a dual fluid cartridge assembly which includes vents that bleed air from the cartridges initially and automatically closes the vents as the piston seal moves away from the vent. By utilizing such a self-bleeding cartridge assembly, the cartridge can be filled by a fluid dispenser without the need for shims, a vacuum or bleed plugs.
    Type: Grant
    Filed: January 12, 2004
    Date of Patent: February 1, 2005
    Assignee: TAH Industries, Inc.
    Inventor: Robert Charles Brennan
  • FILLING PROCESS FOR DUAL FLUID CARTRIDGE ASSEMBLIES
    Publication number: 20040261888
    Abstract: A method for filling a dual fluid cartridge assembly which automatically bleeds air from the cartridge to filling and without extra steps or a vacuum as in known filling methods. In particular, the process relates to providing a dual fluid cartridge assembly which includes vents that bleed air from the cartridges initially and automatically closes the vents as the piston seal moves away from the vent. By utilizing such a self-bleeding cartridge assembly, the cartridge can be filled by a fluid dispenser without the need for shims, a vacuum or bleed plugs.
    Type: Application
    Filed: January 12, 2004
    Publication date: December 30, 2004
    Inventor: Robert Charles Brennan