Apparatus for allowing wheeled negotiation of an obstacle
OwnerLloyd F. Younceinventor
Life of this patent
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Abstract
Apparatus for allowing wheeled passage between a first surface and a second surface separated by an obstacle, the apparatus comprising a base positionable on the first surface, and a framework having a proximal end mounted to the base and a distal end positionable on the second surface, the framework movable between a collapsed condition and an extended condition defining a substantially planar support surface between the proximal and distal ends for allowing wheeled passage between the first surface and the second surface.
Claims16
Apparatus for allowing wheeled passage between a first surface and a second surface separated by an obstacle comprising:
- a base positionable on the first surface;
- a framework having a proximal extremity mounted to the base and a distal extremity positionable on the second surface, the framework movable between a collapsed condition and an extended condition defining a substantially planar support surface between the proximal and distal extremities for allowing wheeled passage between the first surface and the second surface;
- and
- extensions supported adjacent the proximal extremity at spaced intervals, the extensions mounted to the base for reciprocal movement for permitting movement of the framework between the collapsed and extended conditions.
Apparatus for allowing wheeled passage between a first surface and a second surface separated by an obstacle comprising:
- a base positionable on the first surface, the base defining a head and opposing faces that meet to form an edge;
- a framework having a proximal extremity mounted to the head and a distal extremity positionable on the second surface, the framework movable between a collapsed condition and an extended condition defining a substantially planar support surface between the proximal and distal extremities for allowing wheeled passage between the first surface and the second surface;
- and
- extensions supported adjacent the proximal extremity at spaced intervals, the extensions mounted to the head for reciprocal movement for permitting movement of the framework between the collapsed and extended conditions.
Apparatus for allowing wheeled passage between a first surface and a second surface separated by an obstacle comprising:
- a base positionable on the first surface;
- a framework having a proximal extremity mounted to the base and a distal extremity positionable on the second surface, the framework movable between a pleated condition and an extended condition defining a substantially planar support surface between the proximal and distal extremities for allowing wheeled passage between the first surface and the second surface;
- and
- extensions supported adjacent the proximal extremity at spaced intervals, the extensions mounted to the base for reciprocal movement for permitting movement of the framework between the pleated and extended conditions.
Dependencies are inferred from the claim text.