Electric concrete transportation cart
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United States of America Patent
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Nov 21, 2023
Grant Date -
Jul 29, 2021
app pub date -
Jan 19, 2021
filing date -
Jan 23, 2020
priority date (Note) -
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status (Latency Note)
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Abstract
An electrically powered, self-propelled cart for safely delivering heavy loads, such as concrete, within job sites with unlevel, irregular, or sloped terrain. A cargo bucket is tiltable over front drive wheels for transporting and dumping cargo. Electric drive motors associated with a transaxle propel wheels at a selectable speed in response to an electric control module. A steering column rotates in response to manually operated handle bars and activates a sensor to generate signals delivered to the control module for throttle adjustments. The sensor may be a linear potentiometer, a rotary differential transformer or a rotary encoder or shaft encoder measuring angular displacement. Extreme steering displacements will electrically reduce cart speed notwithstanding the previous speed setting chosen by the operator through the steering column.
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