Key switch operable by a cylinder lock

Details Key switch operable by a cylinder lock Key switch operable by a cylinder lock

1988-04-14

1990-12-25

Recla, Henry J.

Electricity: circuit makers and breakers

Switch activation inhibitor

Removable actuator

200 4311, 200305, H01H 2700

Patent

active

049805240

ABSTRACT:
A key switch operable by a cylinder lock, which switch comprises a cylinder housing and a cylinder core arranged to be rotatable within the housing, which is coupled with a non-conducting switch rotor and a switch casing base, in which the switching arrangement is located and the switch rotor is guided.
The cylinder housing is made of insulating material and forms the top of the switch casing and, on its end face facing the switch rotor, has at least one annular rib which is concentric with the axis of the switch rotor, and which engages in an annular groove of the switch rotor, which groove has a corresponding contour.

REFERENCES:
patent: 1936163 (1933-11-01), Jacobi
patent: 4405843 (1983-09-01), Wolniak et al.
patent: 4639562 (1987-01-01), Fredrickson
patent: 4673776 (1987-06-01), Sambursky
patent: 4707575 (1987-11-01), Krasik

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