US 12,005,823 B2
Dumping system for delivery of aggregate to a railroad track or roadway
Mark Robak, Columbus, NE (US); and Tim Starostka, Ashland, NE (US)
Assigned to R & S Track Maintenance, Inc., Ashland, NE (US)
Filed by R & S Track Maintenance, Inc., Ashland, NE (US)
Filed on Sep. 2, 2020, as Appl. No. 17/010,543.
Application 17/010,543 is a continuation in part of application No. 16/566,180, filed on Sep. 10, 2019.
Prior Publication US 2021/0070209 A1, Mar. 11, 2021
Int. Cl. B60P 1/28 (2006.01); G05D 1/00 (2006.01)
CPC B60P 1/283 (2013.01) [G05D 1/0016 (2013.01)] 16 Claims
OG exemplary drawing
 
1. A dumping system for accurate and precise delivery of aggregate to a roadway, the dumping system comprising:
a dump box configured to hold aggregate;
a dump gate, the dump gate comprising
at least two delivery gates, each delivery gate having a top portion, a bottom portion, and a flange; and
a frame, the frame in mechanical communication with each of the at least two delivery gates, and wherein
the dump gate forms a fourth side of the dump box;
an operating system configured to move the at least two delivery gates between an open, a partially open, and a closed position, the operating system comprising
a pump configured to supply pressurized hydraulic fluid to the operating system, where the pump is in fluid communication with a pressure hose,
the pressure hose, where the pressure hose is in fluid communication with a spool valve,
a spool valve having at least two valves,
at least two hydraulic cylinders, where each hydraulic cylinder is in mechanical communication with one of the at least two delivery gates at an attachment to the top portion and an attachment to the bottom portion where the hydraulic cylinder moves the bottom portion of the delivery gate in a linear vertical manner, each of the at least two hydraulic cylinders having an extension hose and a retraction hose, wherein
each extension hose and each retraction hose is in fluid communication with one of the at least two valves of the spool valve,
a return hose in fluid communication with the spool valve, and
a tank in fluid communication with the return hose; and
a control system configured to provided real time adjustment of the at least two delivery gates between the open, the partially open, and the closed positions, the control system comprising
a wireless controller configured to transmit a signal to a signal receiver,
a control unit having the signal receiver, the control unit in mechanical communication with the dump box, and
control lines, the control lines in electric communication with the control unit and the at least two valves of the spool valve.