Retaining wall block

Abstract

A retaining wall block having a rear flange and a mold box and method of making the block. The mold box is configured with a mold cavity that includes a vertical flange forming cavity extending from the top of the mold box to the bottom of the mold box.

Description

[0001]This application is a continuation of U.S. Ser. No. 12 / 252,837, filed Oct. 16, 2008, which claims the benefit of U.S. Provisional Application No. 60 / 980,886, filed Oct. 18, 2007, entitled “Retaining Wall Block”, the contents of each of which are hereby incorporated by reference herein.FIELD OF THE INVENTION[0002]The present invention relates generally to retaining wall blocks and retaining walls constructed from such blocks. Additionally, the invention includes block molds and methods of manufacturing the blocks.BACKGROUND OF THE INVENTION[0003]Retaining walls are used in various landscaping projects and are available in a wide variety of styles. Numerous methods and materials exist for the construction of retaining walls. Such methods include the use of natural stone, poured concrete, precast panels, masonry, and landscape timbers or railroad ties. In recent years, segmental concrete retaining wall units, which are dry stacked (i.e. built without the use of mortar), have beco...

AI Technical Summary

Problems solved by technology

There are several disadvantages with this process of forming retaining wall blocks.

First, since mold boxes and production pallets come in typical sizes the orientation of the blocks with their top surfaces on the production pallets takes up considerable space and limits the number of blocks which can be formed on a pallet during a production cycle.

However, this mold box has several disadvantages.

These moving side walls may become plugged with the moldable material or otherwise malfunction causing the mold to work improperly.

Second, during the block manufacturing process if the flange-forming sub cavity is not completely filled with material or properly cleaned between mold cycles the flange may not be properly or completely formed on the block.

Third, the orientation of the front face of the block at the open top of the mold box prohibits the blocks formed in the mold from being provided with a core.

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