Tent – canopy – umbrella – or cane – Canes – sticks – crutches – and walking aids – Combined and convertible
Patent
1975-04-30
1976-12-14
Schroeder, Werner H.
Tent, canopy, umbrella, or cane
Canes, sticks, crutches, and walking aids
Combined and convertible
135 85, 135DIG11, 200 6144, 200 6185, 340258R, 340407, A45B 304, A61H 306
Patent
active
039969509
ABSTRACT:
A rollable device, designed to be pushed by a blind person, has a plurality of sensors so spaced and so located upon a wheeled mount as to detect the presence of an object, step, or depression in the path of the user, and in so doing actuate electrical means designed to instantaneously inform the user of the presence of the potentially dangerous condition.
The electrically actuated means includes vibratory devices in the handle of the device, so located as to acquaint a blind person with the locaton and nature of the dangerous condition in his or her path. Means is also incorporated in the device, in the form of a buzzer or other electrically actuated audible device, signifying the presence of objects such as automobile bumpers which are elevated above the ground surface and would therefore otherwise go undetected.
Incorporated in the device, also, is a means actuable by the user for sounding a horn or the like for the purpose of seeking help or for warning others of his approach.
The invention incorporates side and front bumpers, an antenna-like member, and a wheel suspension that drops bodily, as sensors having the capability of detecting a wide variety of dangerous conditions that may be encountered by a blind person.
REFERENCES:
patent: 1177582 (1916-03-01), Murphy
patent: 2600708 (1952-06-01), Ulrich
patent: 3158162 (1964-11-01), Reel
patent: 3158851 (1964-11-01), Ruthven
patent: 3251371 (1966-05-01), Croker
Berman Conrad L.
Schroeder Werner H.
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