Back to results
US 9,259,853 B2Granted
Molds for producing concrete blocks with roughened surfaces; blocks made therefrom; and methods of use
AssigneeAnchor Wall Systems, Inc.
InventorsJay Johnson, Lech W. Hernandez, Paul Johnson, Michael 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.
Claims8
A mold for making 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, one along each of the sidewalls across the mold from each other, 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 each of the blocks 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.
Dependencies are inferred from the claim text.