Snap over lens assembly

Details Snap over lens assembly Snap over lens assembly

1985-09-25

1988-01-05

Eisenzopf, Reinhard J.

Electricity: measuring and testing

Electromechanical switching device

116307, 200336, 200 56A, 335225, G01D 1326, H01F 708

Patent

active

047178825

ABSTRACT:
A rotatable one-piece lens assembly that may be rotated relative to the instrument housing comprising a lens boss, integral with the lens, moving with the rotated lens to move the pointer to engage and test the switches. After the switch test the lens may then be rotated back to its normal position. In this manner the switches are tested without removing the lens from the instrument housing.

REFERENCES:
patent: 2855484 (1958-10-01), Kreuter
patent: 3291617 (1966-12-01), Baker et al.
patent: 3579107 (1971-05-01), Butennoff et al.
patent: 4196690 (1980-04-01), Alinari

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