Ignition switch

Details Ignition switch Ignition switch

2011-07-05

2011-07-05

Luebke, Renee (Department: 2833)

Electricity: circuit makers and breakers

Periodic

Cam operated

C200S043080

Reexamination Certificate

active

07973252

ABSTRACT:
A three-position, single-pole, double-throw, rotary ignition switch is disclosed that is water-tight and provides qualitative and quantifiable durability in the presence of high-current loads, even after long use. It withstands a continuous 20 A load, plus an additional occasional 20 A load, when in the “run” position. It withstands an additional 75 A inductive load when in the “start” position. Then even after 12,000 operational cycles, leakage current (with 28 VDC supply voltage) when the switch is in the “off” position, and between non-current-carrying terminals when the switch is in the “on” position, remains under 0.3 mA, and still allows leakage current not exceeding 10 mA at any time while each disconnected pair of terminals and between terminals and ground are exposed to 1,000±5 Vrmsat a frequency of at least 60 Hz being increased 400 V/sec for one minute.

REFERENCES:
patent: 1684940 (1928-09-01), Bohlman
patent: 3299876 (1967-01-01), Mieras
patent: 4413247 (1983-11-01), Hire

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