Tactile dial

Signals and indicators – Indicators – By touch

Patent

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Details

116309, 116DIG17, 70438, 70445, 434113, G01C 1318, G09B 2100, E05B 1700

Patent

active

057752524

ABSTRACT:
A disk shaped element has a plurality of tactile sensed position indicators arranged along its' circumference. Each position indicator consists of a straight bar terminated at one end with a rod having a diameter greater than the thickness of the corresponding bar. Each bar extends outwardly from the circumference of the disk, and each rod extends outwardly from the circumference a distance greater than the corresponding bar. Each position indicator on the dial is oriented analogous to an hour hand position on a clock, with the rod providing a reference for the base of the hand.

REFERENCES:
patent: 901972 (1908-10-01), Kone
patent: 1238247 (1917-08-01), Baker et al.
patent: 1575848 (1926-03-01), Laubach
patent: 2208366 (1940-07-01), Hamilton
patent: 2339013 (1944-01-01), Higgins
patent: 2371325 (1945-03-01), Wessborg
patent: 3473352 (1969-10-01), Foote
patent: 3536017 (1970-10-01), Lucas
patent: 4104896 (1978-08-01), Hahn
patent: 4197726 (1980-04-01), Uyeda
patent: 4445348 (1984-05-01), Saitoh
patent: 4476698 (1984-10-01), Treslo
patent: 4615191 (1986-10-01), Grandy

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