US 12,221,753 B2
Indirect asphalt heating system
Douglas W. Grünwald, Andover, NJ (US)
Assigned to Komline-Sanderson Corporation, Peapack, NJ (US)
Filed by Komline-Sanderson Corporation, Peapack, NJ (US)
Filed on Sep. 1, 2021, as Appl. No. 17/464,071.
Prior Publication US 2023/0068159 A1, Mar. 2, 2023
Int. Cl. E01C 19/08 (2006.01)
CPC E01C 19/08 (2013.01) 13 Claims
OG exemplary drawing
 
1. An asphalt heating system comprising:
a control system;
a pump, to pump heating fluid from a reservoir;
a trough comprising an inlet to receive a feed of asphalt mixture and an outlet for exiting the asphalt mixture after heating; and
one or more rotational agitators disposed in the trough and comprising paddles configured to rotate around one or more shafts to move the asphalt mixture from the inlet to the outlet,
wherein at least one of the trough and the one or more rotational agitators comprise hollow channels connected to the pump to receive heating fluid from the pump, and the control system is configured to control the pump to pump heating fluid into the hollow channels when the asphalt mixture is included within the trough, the hollow channels connected to a return that returns the heating fluid to the reservoir.