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US 7,023,330 B2Granted
Transporter oscillating alarm
AssigneeDEKA Products Limited Partnership
InventorsDean L. Kamen, Robert R. Ambrogi, J. Douglas Field, Burl Amsbury
Life of this patent
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Abstract
A vehicle capable of an extraordinary mode of motorized motion programmed to draw the attention of an operator. When one or more sensors sense a condition requiring attention of the operator, a periodic acceleration is superposed upon the motion of the ground-contacting members. The extraordinary mode of locomotion may include a mode where the vehicle alternates between braking and speeding up and braking over each period of the modulation.
Claims5
An alarm system for alerting the operator of a vehicle having a motorized drive, the alarm system comprising:
- a. a sensor for sensing a specified condition of the vehicle;
- and
- b. a controller for causing the motorized drive, in response to the specified condition, to accelerate the vehicle with a vehicle acceleration modulated with a periodic modulation such that the vehicle acceleration alternates between braking and speeding up and braking over each period of the modulation
- wherein the vehicle includes a control loop in which a motorized drive is included, for propelling the vehicle in a condition of dynamic balance with respect to tipping in the fore-aft plane.
1 more element
Dependencies are inferred from the claim text.