Patents by Inventor Kjell E. H. Roos

Kjell E. H. Roos 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).

  • Patient transferring apparatus
    Patent number: 4240169
    Abstract: A bed and wheelchair arrangement is disclosed in which a center portion of the bed includes, or is attachable to, apparatus for forming a chair on wheels. The center section of the bed mattress is hinged so that it can be bent to form a chair seat and back. In one embodiment, a support portion for the center mattress section is hinged to support the mattress in the chair configuration. In another embodiment, the carrier structure swings through the bed structure.
    Type: Grant
    Filed: January 26, 1979
    Date of Patent: December 23, 1980
    Inventor: Kjell E. H. Roos