Electrical device for sensing a surface

Details Electrical device for sensing a surface Electrical device for sensing a surface

2005-10-25

2005-10-25

La, Anh V. (Department: 2636)

Communications: electrical

Tactual indication

C340S666000, C340S573100, C036S136000, C073S172000

Reexamination Certificate

active

06958681

ABSTRACT:
The invention herein pertains to sensing a ground surface with the foot while walking. Persons having foot and leg nerve damage are often unable to walk without assistance because they can not recognize the ground surface as with normal foot sensory perception. The electrical device herein includes a vibrator which is worn against the skin of the leg and signals the wearer immediately as the foot touches the ground surface. The preferred embodiment of the invention utilizes a shoe having a switch located proximate the heel with the vibrator positioned in a strap surrounding the wearer's knee.

REFERENCES:
patent: 3070907 (1963-01-01), Rocco
patent: 3974491 (1976-08-01), Sipe
patent: 5298884 (1994-03-01), Gilmore et al.
patent: 6031463 (2000-02-01), Bechmann
patent: 6035035 (2000-03-01), Firooz
patent: 6122846 (2000-09-01), Gray et al.
Book complied by inventor; 126 pages; references from websites; Classification definitions from, Electricity: Electrical Systems and Devices; General Information Concerning Patents; No patents included; relevent pages stapled.
American Science & Surplus catalog, Oct. 2003, vol. 188, p. 55 showing small vibrator.

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