Electricity: circuit makers and breakers – Multiple circuit control – Pivoted contact
Patent
1981-06-22
1983-03-29
Scott, J. R.
Electricity: circuit makers and breakers
Multiple circuit control
Pivoted contact
200 6188, 200 6191, H01H 8300, H01H 906
Patent
active
043784747
ABSTRACT:
An electrical switch device manually operable, by a rotatable knob, to a plurality of definable positions for selectively effecting operation of an automotive transmission to a desired gear ratio. The knob and a housing, which includes the switch, may be mounted any place in the vehicle cab within convenient reach of the operator. The switch device is connected to an electronic logic system which monitors the condition of the transmission at all times to either energize or deenergize a lock-out solenoid, which controls a latch mechanism. Depending upon the condition of the transmission and, therefore, of the solenoid, a latch mechanism either permits or inhibits operation of the knob. An override mechanism permits the operator to release the latch mechanism to permit operation of the knob and the switch for shifting of the transmission, in an emergency situation, notwithstanding that the latch mechanism is in a locked position.
REFERENCES:
patent: 2608624 (1952-08-01), Goodrich
patent: 2924680 (1960-02-01), Swenson
patent: 3326315 (1967-06-01), Richards
patent: 3898401 (1975-08-01), Noba et al.
American Standard Inc.
Scott J. R.
Visk R. S.
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