Tent – canopy – umbrella – or cane – Canes – sticks – crutches – and walking aids – Tips
Reexamination Certificate
2006-05-23
2006-05-23
Canfield, Robert (Department: 3635)
Tent, canopy, umbrella, or cane
Canes, sticks, crutches, and walking aids
Tips
C135S083000, C135S084000, C403S122000
Reexamination Certificate
active
07047990
ABSTRACT:
An improved cane to assist walking, comprising a shaft, a base and an articulated connection allowing the base to pivot relative to the shaft, depending upon the slope of the surface below the base, the connection characterized in that articulation capability decreases as downward loading on the shaft is increased, and articulation capability increases as downward loading on the shaft is decreased. Articulation capacity may have a path of resistance that guides the user into selected patterns of therapeutic motion.
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Kiceniuk, Jr. Taras
Vandenbrink Ronald
Zambrano Thomas
Aerovironment Inc.
Canfield Robert
City of Hope
Perkins Coie LLP
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