Patents by Inventor Oscar E. Langdale

Oscar E. Langdale 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).

  • Patent number: 4613997
    Abstract: A convalescent bed comprises a base frame and a mattress support frame pivotally mounted on the base frame for movement between horizontal and vertical positions. The support frame includes a body portion and a hinged head portion. Power mechanisms are provided for moving the support frame as a unit between the horizontal and vertical positions, and also for swinging the head portion up from the horizontal position independently of the body portion. Further, the bed can be divided longitudinally into two separate sections to facilitate maneuvering same in confined spaces and through narrow openings.
    Type: Grant
    Filed: June 14, 1984
    Date of Patent: September 30, 1986
    Inventor: Oscar E. Langdale