Motor vehicles – With means for promoting safety of vehicle – its occupant or... – Responsive to sensing of acceleration – deceleration – or tilt...
Patent
1978-10-11
1980-09-09
Love, John J.
Motor vehicles
With means for promoting safety of vehicle, its occupant or...
Responsive to sensing of acceleration, deceleration, or tilt...
200182, 200220, B60K 2800
Patent
active
042212782
ABSTRACT:
A mercury switch sensitive to rotations in either of two selected directions is provided for interrupting the ignition circuit of a motorcycle if the motorcycle should topple over. The switch has a Y-shaped housing with two hollow copper members joined to a hollow stem. An electrical contact is mounted by means of an insulating stopper in the hollow stem. A pool of mercury provides a contact between the electrical contact and the metal Y-shaped housing. A wire is affixed to the electrical contact and a second wire is affixed to the metal housing. A pool of mercury completes the switch between the insulated electrical contact and the metal housing. As the switch is rotated in either a first or a second selected direction, at a predetermined point, the pool of mercury will separate from the insulated electrical contact thereby causing the switch to display an open circuit condition. The automatic switch is installed in series in the ignition system of a motorcycle or similar vehicle thereby terminating the ignition of the vehicle's motor when the vehicle has toppled over. The switch is mounted on the frame of the vehicle at a point of minimum displacement under normal operating conditions.
REFERENCES:
patent: 1107245 (1914-08-01), Bard
patent: 2192262 (1940-03-01), Griesedieck
patent: 2503449 (1950-04-01), Murray
patent: 3034097 (1962-05-01), English et al.
patent: 3599745 (1971-08-01), Hughes
patent: 3743802 (1973-07-01), Avenick
patent: 3787647 (1974-01-01), Hughes
Love John J.
Underwood D. W.
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