Patents by Inventor Randall Ohman

Randall Ohman 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).

  • Positional feedback system for medical mattress systems
    Patent number: 6353950
    Abstract: An apparatus adjusts the pressures of a therapeutic mattress surface in accordance with the angular position of that surface. The apparatus comprises an angular position sensor and a rotation sensor which are housed together in an enclosure having a top surface in the form of a circular plate. The circular plate mounts either on the surface of the mattress or on the bottom of a bed frame supporting the mattress. The angular position and rotation sensors measure the horizontal plane referenced perpendicular to the direction of the force of gravity. The apparatus further comprises a controller blower valve assembly which processes data received from the angular position and rotation sensors to maintain, increase, or decrease the pressures within the mattress.
    Type: Grant
    Filed: July 12, 1996
    Date of Patent: March 12, 2002
    Assignee: Kinetic Concepts, Inc.
    Inventors: Alan L. Bartlett, Randall Ohman