Patents Assigned to National Patent Search Associates, Inc.
  • Patent number: 4141094
    Abstract: Apparatus for aiding the mobility and independence of disabled persons, comprising a harness encircling the torso and upper thigh areas equipped with lifting points along the centerline and above the center of gravity of the individual, a system of lifting levers mounted on a wheelchair which attach to the harness and raise the individual along a natural path from a sitting to a standing position, and alternately, an overhead suspension system attaching to the harness and being either attached to a wheelchair or a permanently mounted fixture in a bathroom or other area to allow independent movement from a wheelchair to a bathtub, bed, automobile or the like.
    Type: Grant
    Filed: October 27, 1976
    Date of Patent: February 27, 1979
    Assignees: Reme Enterprises, Inc., National Patent Search Associates, Inc.
    Inventors: Andrew M. Ferguson, Ernest V. Keith, David C. Hatchell
  • Patent number: 4098521
    Abstract: A wheelchair that may be used by disabled persons as a normal self-propelled vehicle and is easily convertible to a narrow attendant-propelled wheelchair for negotiating narrow passages such as airplane aisles and bathroom doors in places not equipped for the accommodation of the disabled. Wheels secondary to the main drive wheels are mounted within the limits of the frame perimeter and are not in ground contact when the main drive wheels are in use. Upon tilting the wheelchair, the secondary wheels contact the ground raising the primary wheels and enabling their rapid removal, the resulting chair being narrowed substantially to the width of the occupant. Steerable castor wheels are mounted inboard of the frame members allowing turns in tight places, and shortened or removable arms are provided for ease of lateral movement from or to the chair. Secondary footrests and drive linkage for secondary wheels are also provided.
    Type: Grant
    Filed: August 9, 1976
    Date of Patent: July 4, 1978
    Assignees: Reme Enterprises, Inc., National Patent Search Associates, Inc.
    Inventors: Andrew Marvin Ferguson, Ernest Voshell Keith
  • Patent number: 4078817
    Abstract: This invention provides for a shock absorber or spring mounting attachment which can be mounted on virtually all existing wheelchair frames in order to cushion the occupant from the shock and jolting now experienced when the main drive wheels of the chair pass over irregularities in the traveled surface. In addition, this attachment reduces the tilting experienced and reduces the traction lost when the wheelchair negotiates irregularities in the traveled surface. The attachment comprises a swing arm portion for rotatably supporting a drive wheel which is coupled to housing having a compression spring therein transferring the wheelchair weight to the wheel.
    Type: Grant
    Filed: June 10, 1976
    Date of Patent: March 14, 1978
    Assignees: Reme Enterprises, Inc., National Patent Search Associates, Inc.
    Inventors: Andrew Marvin Ferguson, Ernest Voshell Keith