Patents by Inventor William Morrison Jr

William Morrison Jr 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).

  • Publication number: 20070060894
    Abstract: A medication dispensing apparatus that can be actuated with a small force to deliver a precise dose. The apparatus includes a fluid container having an injection chamber and a storage chamber in fluid flow communication. A first plunger is movable to alter the volume of the injection chamber, and a second plunger is movable to alter the volume of the storage chamber. The injection chamber has a cross-sectional area that is smaller than a cross-section area of the storage chamber. During dose setting, a drive assembly drivingly connected to the plungers shifts the plungers different distances so as to reduce the volume of the storage chamber while simultaneously increasing the volume of the injection chamber a similar amount. After dose setting, an actuator is movable with a small force to shift the first plunger to reduce the volume of the injection chamber to force medicine through an outlet of the fluid container.
    Type: Application
    Filed: May 25, 2004
    Publication date: March 15, 2007
    Inventors: He Dai, William Morrison Jr, Robert Nesbitt, Anthony Schaff Sr