Patent ID: 7281839

Claim:
A mobile concrete production apparatus comprising: a frame supporting at least one aggregate storage bin for holding a supply of aggregate; a cement storage bin for holding a supply of cement; and a water tank for holding a supply of water; a mixing auger having a hopper for receiving supplies of cement, water and aggregate which are mixed by the mixing auger to create a concrete mixture; a conveyor for transporting aggregate from said aggregate from said at least one aggregate storage bin to said mixing auger hopper; a turbine mixer supported on said frame of said mobile concrete production apparatus and being operable to receive a supply of dry cement from said cement storage bin and a supply of water from said water tank to pre-mix said cement and said water into a cement paste before being introduced into said mixing auger to be combined with said aggregate transported to said mixing auger by said conveyor to create said concrete mixture for discharge from said mixing auger, said turbine mixer including: a mixing chamber operably supported on said mobile concrete production apparatus to receive said supply of dry cement, said mixing chamber having a front cover plate, a back plate and a generally cylindrical shell positioned between said front cover plate and said back plate, said supply of dry cement being introduced into said mixing chamber through a central opening in said back plate; an inlet port cooperable with said mixing chamber to introduce said supply of water into said mixing chamber through said central opening in said back plate; and a mixing plate being supported for rotational movement within said mixing chamber and having a plurality of agitating fins mounted thereon to effect a mixing of said cement and said water upon rotation thereof to create said cement paste for conveying through a discharge port positioned on said front cover plate of said mixing chamber directly into said mixing auger to be mixed with said aggregate transported to said mixing auger by said conveyor by said mixing auger.