Combined single-twin street sweeping machine
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United States of America Patent
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Dec 19, 2006
Issued Date -
N/A
app pub date -
Jan 21, 2004
filing date -
Jan 21, 2004
priority date (Note) -
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Abstract
A surface cleaning vehicle is provided with hydraulically driven sweeping machinery. The vehicle comprises a truck chassis for carrying the sweeping machinery and a prime mover engine for propelling the vehicle. A second engine is connected to said chassis, and first and second pumps and associated check valves are connected to respective ones of the prime mover and second engines for driving said sweeping machinery. A control mechanism is provided for selectively connecting only one of the prime mover engine or second engine to drive the sweeping machinery.
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