Molds for producing concrete blocks with roughened surfaces; blocks made therefrom; and methods of use
AssigneeAnchor Wall Systems, Inc.
InventorsJay Johnson, Wally Hernandez, Paul Johnson, Mike Lidbom
Life of this patent
Estimating the term…
Abstract
A mold for making dry cast concrete blocks includes a pair of vertical shoulder forming sections, one along each of the opposite sides of the mold to form vertical front shoulders of a block. Each shoulder forming section has a shoulder roughening arrangement to result in molded, roughened shoulders of the block. Methods of making such blocks and the resulting block are included.
Claims20
A mold for making a dry cast concrete blocks with rounded front vertical shoulders, the mold comprising:
- opposed sidewalls, opposed end walls, an open top and bottom, and a lower edge,
- a pair of vertical shoulder forming sections, each shoulder forming section being concave about a vertical axis and the shoulder forming sections being in positions to form the rounded front vertical shoulders of a block made in the mold, each shoulder forming section having a recess starting adjacent the lower edge of the mold and extending upward between about 25% and about 50% of the height of the mold, at least two spaced ribs formed in each of the recesses, each rib extending in a direction across the width of the recess and being inclined relative to both the vertical axis and the width of the recess, the at least two spaced ribs together extending across the width of the recess.
A wear plate for forming a rounded vertical shoulder of a dry cast concrete block, the wear plate comprising:
- (a) a plate body having a top edge and bottom edge, a molding face between the top and bottom edges, an outside face opposite of the molding face, and a side bridging the molding face and outside face;
- (i) the molding face defining at least one concave shaped molding surface for forming a rounded shoulder and including a recess;
- (ii) the recess extending from adjacent the bottom edge of the plate body and extending upward between about 25% and about 50% of the height of the plate body;
- (iii) the concave shaped molding surface having a smooth section and a roughening section, the roughening section being within the recess;
- and
- (iv) at least two spaced ribs in the roughening section, each rib extending in a direction across the width of the recess and being inclined relative to the side of the plate body.
Dependencies are inferred from the claim text.