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US 4,907,890 AGranted
Portable-concrete mixing device and method for using same
AssigneeCemen-Tech, Inc.
InventorLarry G. Lepper
Life of this patent
Estimating the term…
Abstract
The portable continuous mixing device of the present invention comprises a first upper frame adapted to drop the dry concrete ingerdients into the upper end of a hopper. The ingredients drop out of the lower end of the hopper onto a second conveyor which deposits the dry ingredients into the input end of a continuous auger mixer. Water and admix are also added to the input end of the auger mixer and the mixer mixes all of these ingredients and discharges them from a discharge end.
Claims8
A portable concrete mixing device for trailing behind a powered vehicle comprising:
- a portable frame having ground engaging wheels mounted thereon and having a forward end, a rear end, and first and second opposite sides, said portable frame having hitch means at said forward end thereof for detachably connecting said frame to said powered vehicle;
- first and second spaced apart hopper means on said frame adjacent said forward and rearwards ends thereof respectively, each of said first and second hopper means having an open upper hopper end and an open lower hopper end;
- first conveyor means on said frame having a first end adjacent and below said lower end of said first hopper means and having a second end adjacent and above said upper hopper end of said second hopper means for conveying dry concrete ingredients from said first hopper means to said second hopper means;
- second conveyor means on said frame having first and second ends, said first end of said second conveyor means being below said lower hopper end of said second hopper means for receiving said concrete ingredients from said second hopper means and carrying said ingredients away from said second hopper means to said second end of said second conveyor means;
- auger mixer means having an input end adjacent said second end of said second conveyor means for receiving said dry ingredients therefrom and having an output end, said auger mixer means having a rotatable auger means for continuously mixing said ingredients and for conveying said ingredients to and discharging said ingredients from said output end;
- a water source on said portable frame;
- water conveyor means for conveying water from said water source to said input end of said auger mixer means whereby said auger mixer means will mix said water with said dry ingredients;
- a source of first admix ingredient on said portable frame;
- a first admix conveyor for conveying said first admix ingredient to said input end of said auger mixer means for mixing with said water and said dry ingredients;
- a source of second admix ingredient on said portable frame;
- a second admix conveyor for conveying said second admix ingredient to said input end of said auger mixer means for mixing with said water and said dry ingredients.
8 more elements
A portable concrete mixing device for trailing behind a powered vehicle comprising:
- a portable frame having ground engaging wheels mounted thereon and having a forward end, a rear end, and first and second opposite sides, said portable frame having hitch means at said forward end thereof for detachably connecting said frame to said powered vehicle;
- first and second spaced apart hopper means on said frame adjacent said forward and rearward ends thereof respectively, each of said first and second hopper means having an open upper hopper end and an open lower hopper end;
- first conveyor means on said frame having a first end adjacent and below said lower end of said first hopper means and having a second end adjacent and above said upper hopper end of said second hopper means for conveying dry concrete ingredients from said first hopper means to said second hopper means;
- second conveyor means on said frame having first and second ends, said first end of said second conveyor means being below said lower hopper end of said second hopper means for receiving said concrete ingredients from said second hopper means and carrying said ingredients away from said second hopper means to said second end of said second conveyor means;
- auger mixer means having an input end adjacent said second end of said second conveyor means for receiving said dry ingredients therefrom and having an output end, said auger mixer means having a rotatable auger means for continuously mixing said ingredients and for conveying said ingredients to and discharging said ingredients from said output end;
- a water source on said portable frame;
- water conveyor means for conveying water from said water source to said input end of said auger mixer means whereby said auger mixer means will mix said water with said dry ingredients;
- said first conveyor means being movably mounted to said frame for movement in a forward direction from a retracted position toward an extended position, wherein said first end of said first conveyor means is above and adjacent said hitch means.
5 more elements
Dependencies are inferred from the claim text.