Concrete mixing apparatus
OwnerThomas Hortoninventor
Life of this patent
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Abstract
A concrete mixing machine is disclosed which mixes small batches of concrete using any desired ratio of gravel, sand, cement, and water. The dry materials are mixed into concrete at the site where the concrete is to be poured. The apparatus includes hoppers for storing the dried mix material, a water tank, a metering slide for measuring desired amounts of cement, sand, and gravel to the desired proportions; a mixing, feeding, and dispensing system; and a hydraulic system for driving the mixing apparatus. The hydraulic drive system is utilized to overcome the binding which occurs when residual concrete begins to set.
Claims14
A device for mixing measure amounts of concrete from fluid and dry ingredients including cement, comprising:
- a frame;
- a plurality of hoppers for storing said dry ingredients mounted on said frame, said plurality of hoppers including a cement hopper;
- a tank for storing said fluid mounted on said frame;
- a metering slide assembly having a slide with a plurality of compartment-like metering slide chambers, said metering slide oscillating from a first position for receiving into said chambers a predetermined amount of dry ingredients from said hoppers to a second position for discharging said predetermined amounts of dry ingredients;
- mixing and moving means for mixing the dry ingredients with said fluid and dispensing the resultant concrete in the desired location;
- and
- hydraulic drive and control means for driving said metering slide assembly and said mixing and moving means and for controlling the consistency and amount of concrete dispensed, said drive and control means being capable of overcoming binding resulting from set up of said concrete or dry ingredient;
- said cement hopper being raised above the level of the other of said plurality of hoppers;
- said metering slide assembly further including a grease barrier disposed between said metering slide and said cement hopper, said grease barrier preventing moisture from reaching said cement hopper.
Dependencies are inferred from the claim text.