Electricity: circuit makers and breakers – Special application – Actuated concurrently with operation or use of art device
Patent
1990-03-21
1991-08-06
Scott, J. R.
Electricity: circuit makers and breakers
Special application
Actuated concurrently with operation or use of art device
H01H 3514
Patent
active
050380060
ABSTRACT:
A force-actuated electrical disconnect switch for connection between major electrical components of a vehicle and an ungrounded battery terminal of the vehicle. In an operative configuration, a pendulum in coaxial alignment with a contact shaft biases a conductor plate against a pair of power terminals which allows normal electrical power to flow to the electrical components. A severe jolt, such as a collision, with a sufficient horizontal component causes the pendulum to pivot out of alignment with the contact shaft, which is thrust downwardly such that the conductor plate breaks contact with the power terminals and immediately assumes an inoperative configuration wherein the conductor plate makes contact with a pair of grounding terminals, short-circuiting the electrical components to ground. While in the inoperative configuration, a flasher and emergency light circuit is activated. A reset mechanism is adapted to restore the apparatus to its normal, operative configuration. A modified embodiment has a shaft biased against a sphere which is shifted out of alignment with the shaft during a collision, whereby a conductor plate breaks contact with a pair of power contacts and immediately thereafter makes contact with a pair of grounding contacts, shorting the electrical components to ground. A relay is adapted to elevate the shaft such that the sphere can gravitationally return to a central position, restoring the modified apparatus to an operative configuration.
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Lowe Carla L.
Lowe, Sr. Alvin E.
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