Molds for producing concrete blocks with roughened surfaces; blocks made therefrom; and methods of use

Patent metadata

Field	Value
Publication number	US-9878465-B2
Application number	US-201614987079-A
Country	US
Kind code	B2
Filing date	Jan 4, 2016
Priority date	Feb 2, 2011
Publication date	Jan 30, 2018
Grant date	Jan 30, 2018

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.

First claim

We claim:

1. A mold for making dry 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.

2. The mold of claim 1 wherein there are no more than a pair of vertical shoulder forming sections in the mold.

3. The mold of claim 2 wherein a first of the vertical shoulder forming sections in the mold is along one of the sidewalls.

4. The mold of claim 3 wherein a second of the vertical shoulder forming sections in the mold is along the other of the sidewalls.

5. The mold of claim 2 wherein the pair of vertical shoulder forming sections are across the mold from each other.

6. The mold of claim 1 wherein each rib extends downward toward the bottom of the mold as it extends from one edge of the recess toward the other edge of the recess.

7. The mold of claim 6 wherein the height of each recess is about 50% of the height of the mold.

8. The mold of claim 1 wherein the ribs in each recess are parallel.

9. The mold of claim 1 for forming two face to face concrete blocks, wherein there are two adjacent vertical shoulder forming sections midway along each of the sidewalls of the mold midway between the end walls of the mold, the adjacent vertical shoulder forming sections being concave about parallel vertical axes and facing opposite end walls of the mold to form a rounded vertical front shoulder on each of the two face to face blocks.

10. The mold of claim 9 wherein there each rib extends downward toward the bottom of the mold as it extends from one edge of the recess toward the other edge of the recess.

11. The mold of claim 9 wherein the height of each recess is about 50% of the height of the mold.

12. The mold of claim 7 wherein the ribs in each recess are parallel.

Assignees

• Johnson Jay
• Hernandez Wally
• Johnson Paul
• Lidbom Mike
• Anchor Wall Syst

Inventors

• Johnson Jay
• Hernandez Wally
• Johnson Paul
• Lidbom Mike

Classifications

• B28B7/0061

  Moulds, cores or mandrels specially adapted for mechanically working moulding surfaces during moulding or demoulding, e.g. smoothing by means of mould walls driven during moulding or of parts acting during demoulding · CPC title

• B28B7/007 Primary

  with moulding surfaces simulating natural effets, e.g. wood or stone · CPC title

• B28B7/0097

  Press moulds; Press-mould and press-ram assemblies · CPC title

• E04C1/395

  for claustra, fences, planting walls, e.g. sound-absorbing (pots for vertical horticulture A01G9/022) · CPC title

• E04B2/14

  Walls having cavities in, but not between, the elements, i.e. each cavity being enclosed by at least four sides forming part of one single element · CPC title