Patents by Inventor Gary L. Christiansen

Gary L. Christiansen 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).

  • Stethoscope diaphragm dispenser and method
    Patent number: 5466897
    Abstract: A dispenser apparatus for use in dispensing disposable stethoscope diaphragms for removable attachment to a stethoscope head is disclosed. The apparatus operates by removing a diaphragm from a stack, and presenting it for attachment to a stethoscope, when a dispensing plate is shuttled between retracted and extended positions. Also disclosed is a method for reducing the risk of infection by stethoscope use.
    Type: Grant
    Filed: June 8, 1994
    Date of Patent: November 14, 1995
    Assignee: Modern Medical Devices
    Inventors: James B. Ross, Gary L. Christiansen, Ronald Chang