Tamper resistive odometer

Details Tamper resistive odometer Tamper resistive odometer

1979-08-06

1981-08-18

Hix, L. T.

Registers

Odometers

Details

235139R, G01C 2200, G06C 900

Patent

active

042848822

ABSTRACT:
A tamper resistive odometer having a construction whereby manual attempt to reverse the number setting thereon, by separating the pinion gear engagement with number wheel gears, results in a fractured pinion gear that permanently disengages all the pinion gears from the number wheel gears.

REFERENCES:
patent: 780490 (1905-01-01), Anderson
patent: 1394455 (1921-10-01), Veeder
patent: 1776525 (1930-09-01), Talbot
patent: 2004881 (1935-06-01), Slye
patent: 2243738 (1941-05-01), Mather
patent: 3137444 (1964-06-01), Harada
patent: 3198430 (1965-08-01), Hermann
patent: 3482773 (1969-12-01), Hachtel
patent: 3495773 (1970-02-01), Hachtel
patent: 3516603 (1970-06-01), Hachtel
patent: 3539783 (1970-11-01), Bergsma et al.
patent: 3544002 (1970-12-01), Summerer
patent: 3561635 (1971-02-01), Henderson
patent: 3785551 (1974-01-01), Regan
patent: 3801005 (1974-04-01), Pniewski
patent: 3949201 (1976-04-01), Bogart
patent: 3986005 (1976-10-01), Itoh

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