Patents by Inventor Thomas R. Rich

Thomas R. Rich 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).

  • Dispensing device having static mixer in nozzle
    Patent number: 4801008
    Abstract: Disclosed is a disposable cartridge including a chamber containing a plurality of inter-reacting components of, e.g., an adhesive system. The components are separated from each other by a barrier film formed by reaction therebetween. The components are expelled through a nozzle housing a static mixing element, the nozzle being adapted to trap the barrier film to prevent clogging. The nozzle includes a frusto-conical entry portion designed to ensure a constant mix-ratio profile between the components.
    Type: Grant
    Filed: June 24, 1988
    Date of Patent: January 31, 1989
    Assignee: W. R. Grace & Co.
    Inventor: Thomas R. Rich