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US 5,540,869 AGranted
Method for forming concrete products
AssigneeColumbia Machine, Inc.
InventorsAllen Aaseth, Robert A. Schmitt
Life of this patent
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AssigneeColumbia Machine, Inc.
InventorsAllen Aaseth, Robert A. Schmitt
Estimating the term…
A mold box is flexibly mounted to a product forming machine having upper and lower vertically displaceable beams. A feed drawer dispenses concrete material into the mold box while a vibration system vertically vibrates the mold box while dampening horizontal vibration. The vibration system is driven by a single drive shaft that actuates first and second vibrator rods while at the same rotating a counter-weight in a counter-rotating direction. A set of alignment brackets lock the mold box into a predetermined aligned relationship while being mounted in the product forming machine. The bottom side of each mold box is mounted to the product forming machine in the same relative position to reduce machine readjustments. A set of telescoping legs hold the feed drawer assembly variable distances above the mold box. A unitized pallet feeder quickly moves pallets one at a time from an "on-deck" position to a "receiving" position underneath the mold box.
A method for forming concrete products in a product forming machine having vertically displaceable upper and lower beams, comprising:
A method for forming concrete products in a product forming machine having an upper beam, a lower beam including a table for holding a pallet, a first piston coupled between the upper and lower beam, a second piston coupled between the product forming machine and the lower beam, a mold box having a head assembly attached to the upper beam and a mold assembly attached to the product forming machine, the mold assembly including internal cavities and a top side, the method comprising:
Dependencies are inferred from the claim text.