Patent ID: 7931397

Claim:
A transit concrete mixing and dispensing system comprising: (a) a truck including a chassis; (b) a rotary mixing drum for mixing and dispensing concrete mounted on said chassis; (c) a forward, generally hollow pedestal for supporting an end of said mixing drum for rotation; (d) a hydraulic system on said truck, said hydraulic system including a hydraulic fluid reservoir tank wherein said reservoir tank is adapted to be stowed inside said pedestal, (e) wherein said hydraulic fluid reservoir tank further comprises a shaped outer wall defining an enclosed inner space and containing a recess forming an internal baffle shape, one or more fluid return connections in said outer wall, said internal baffle shape being in the path of returning hydraulic fluid such that said returning hydraulic fluid is directed toward said internal baffle thereby forcing returning hydraulic fluid to mix with cooler reservoir fluid thereby lowering average fluid temperature; and (f) an auxiliary water tank nested in said recess beneath said hydraulic fluid reservoir tank.