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Vehicle deceleration sensor and indicator

  • US 5,821,851 A
  • Filed: 07/01/1997
  • Issued: 10/13/1998
  • Est. Priority Date: 07/01/1997
  • Status: Expired due to Fees
First Claim
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1. A deceleration sensor and indicator system for measuring a rate of deceleration experienced by a vehicle and signaling the rate of deceleration to persons outside of the vehicle, the system comprising:

  • a shaft having a longitudinal axis, a first end and a second end;

    a pendulum fixed to the shaft between the ends thereof;

    a first rotary electric switch having a first part housing a plurality of spaced electrical contacts and a second part movable with respect to the first part for sequentially making contact with the electrical contacts, the second part being attached to the first end of the shaft for rotation therewith;

    means for mounting the first part of the rotary switch to the vehicle such that the shaft and the second part of the rotary switch rotate as the pendulum swings by inertia with respect to the vehicle about the longitudinal axis of the shaft to actuate the rotary switch; and

    signaling means connected to the rotary switch for actuation thereby to provide a visual indication of the rate of deceleration of the vehicle as determined by the amount of rotation of the shaft about the longitudinal axis.

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