Written by: Lex Protector|January 5, 2021
Vehicles specially designed for street sweeping operations have been used for many years carrying the main broom which is located behind the rear wheels. Donald L. Dickson was granted his patent for the invention, “Gutter broom assembly for a street sweeping machine” by the USPTO on 5th January 1982, bearing the patent number US4308632A.
These vehicles consist of a debris elevating system operating in such a manner as to receive debris and rubbish at the street surface forwardly of the main broom. The typical street sweeping vehicle also includes a pair of side brooms, known as gutter brooms, which are designed to gather material from the sides of the vehicle and propel it inwardly so that it comes under the control of the main broom and the debris elevator system. One of the problems which are faced by the prior art inventions is the unevenness or irregularity of the street surfaces over which the vehicle must operate. In addition to mere irregularities in the terrain surface, these machines also from time to time encounter actual physical obstacles, such as curbs, parked vehicles, and the like.
The main objective of the present invention is to provide an improved street the sweeping machine that is simplified, reliable, and far less susceptible to wear and tear the machines. It also greatly reduces the amount of maintenance time and expense.
