Geometrical instruments – Area integrators – Electrical
Patent
1975-04-03
1979-12-04
Little, Willis
Geometrical instruments
Area integrators
Electrical
33 3R, 128 80DB, G01B 330, A61F 300
Patent
active
041764595
ABSTRACT:
The present invention relates to a measuring device for measuring the relative-correctable difference in length of a person's legs in order to determine the amount of elevation required in the construction of an orthopedic shoe to compensate for such difference. The measuring device includes a base plate of predetermined thickness and a sole plate of predetermined thickness, the sole plate having a plan configuration similar to the base plate. Means are provided for preventing relative movement of the sole plate and the base plate, and means for securing the base plate and the sole plate to the foot of the associated person is provided whereby such person can stand and walk on the measuring device. Additional measuring plates of predetermined thickness are provided for increasing the elevation of the measuring device in predetermined increments whereby the correctable difference in elevation of the associated person's leg can be determined.
REFERENCES:
patent: 3640273 (1972-02-01), Ray
patent: 3758891 (1973-09-01), Geister
Perser Donald A.
Roman Donald A.
Ballert Orthopedic Corp.
Little Willis
Sandler Ronald A.
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