Geometrical instruments – Area integrators – Electrical
Patent
1981-08-17
1983-06-07
Little, Willis
Geometrical instruments
Area integrators
Electrical
33161, 135 69, A61H 302
Patent
active
043864660
ABSTRACT:
A crutch gauge has an adjustable extension leg movable vertically in either direction relative to a pair of side members, which are the same length as the side members of a standard crutch, to enable determination of the length of an adjustable extension leg that is to extend beyond the side members of the crutch for a person being fitted. The crutch gauge includes a locking arrangement that enables the person, who is being fitted, to be supported by the crutch gauge while walking. The movement of the adjustable extension leg of the crutch gauge in either direction is accomplished without a person, who is fitting the person, having to bend over. The crutch gauge includes an adjustably positioned handle, which is disposed in one of five positions in accordance with the person being fitted.
REFERENCES:
patent: 1505081 (1924-08-01), Arndt
patent: 2590607 (1952-03-01), Grimball
patent: 2614332 (1952-10-01), Zadrozny
patent: 2674253 (1954-04-01), Hopkins
patent: 3730198 (1973-05-01), Johnston et al.
Avers Dale L.
Leach, Jr. Frank C.
Little Willis
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