Patent ID: 7178972

Claim:
A machine for recycling site-won spoil comprising predominantly non-granular cohesive material from an excavation for immediate re-use as a backfill, comprising: (a) means for receiving excavated cohesive material; (b) first breaking means housed in said receiving means for breaking up the cohesive material; (c) a pan mixer having a rotary blade or vane for thoroughly mixing components received in the pan mixer and for discharging said components from the pan mixer; (d) means for transporting the material from the receiving means to the pan mixer; (e) means for adding a measured amount of powder material to the material being transported on the transporting means; and (f) second breaking including a slotted conveyer and rotavator means for breaking up the material on the transporting means before the material enters the pan mixer, said second breaking means being outside the receiving means and having a distinct mechanism from the first breaking means.