Patents by Inventor Craig D. Johnston

Craig D. Johnston 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).

  • Lift chair with adjustable arm rests
    Patent number: 6533353
    Abstract: The lift chair has a chair fame pivotally connected to a chair base for pivotal movement about a chair frame horizontal axis. A liner actuator pivots the chair frame about a chair frame horizontal axis. Left and right arm rests are pivotally attached to the chair frame by hinge and ratchet assemblies. The hinge portions have an arm rest axis at the rear of the arm rests. The ratchet portion permit forward ends of the arm rests to be raised as required and hold the arm rests in selected positions to assist a person to stand after the chair frame has been pivoted upward about the chair frame horizontal axis. The arm rests are pivoted to their upper limit to release the ratchet assemblies and free the arm rests to pivot to their lower positions.
    Type: Grant
    Filed: January 30, 2001
    Date of Patent: March 18, 2003
    Inventor: Craig D. Johnston
  • Lift chair with adjustable arm rests
    Publication number: 20020101103
    Abstract: The lift chair has a chair fame pivotally connected to a chair base for pivotal movement about a chair frame horizontal axis. A liner actuator pivots the chair frame about a chair frame horizontal axis. Left and right arm rests are pivotally attached to the chair frame by hinge and ratchet assemblies. The hinge portions have an arm rest axis at the rear of the arm rests. The ratchet portion permit forward ends of the arm rests to be raised as required and hold the arm rests in selected positions to assist a person to stand after the chair frame has been pivoted upward about the chair frame horizontal axis. The arm rests are pivoted to their upper limit to release the ratchet assemblies and free the arm rests to pivot to their lower positions.
    Type: Application
    Filed: January 30, 2001
    Publication date: August 1, 2002
    Inventor: Craig D. Johnston