IP Library Granted Patent US 12,311,575
Granted Patent B2
US 12,311,575 · App. 16/538,466 · Granted May 27, 2025

Apparatus for making a masonry block with a roughened surface

Inventor: William H. Karau (Southlake, TX)
Assignee: PAVESTONE, LLC
B28B7/0064B28B7/0061
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Quick Facts
Patent No.
US 12,311,575
App. No.
16/538,466
Granted
May 27, 2025
Kind
B2
Abstract

An apparatus comprising a substantially smooth internal mold surface forming a cavity and one or more roughened sections of the substantially smooth internal mold surface having a plurality of irregular grooves, wherein each roughened section is inclined with a wider base and a narrower top.

Claims (22)

1. An apparatus comprising:

a substantially smooth internal mold surface forming a cavity; and

one or more roughened sections of the substantially smooth internal mold surface having a plurality of irregular grooves, wherein each roughened section is disposed between a wider planar base and a narrower planar top, with an inclination between the wider planar base and the narrower planar top sufficient to allow debris to accumulate.

2. The apparatus of claim 1 wherein the one or more roughened sections form a v-shaped section.

3. The apparatus of claim 1 wherein the one or more roughened sections comprise a first planar roughened section and a second planar roughened section.

4. The apparatus of claim 1 wherein the one or more roughened sections comprise a first planar roughened section and a second planar roughened section that meet to form a v-shaped section.

5. The apparatus of claim 1 wherein the one or more roughened sections comprise a first planar roughened section and a second planar roughened section that meet to form a v-shaped section and an angle of incline from the wider planar base to the narrower planar top is 1.3 degrees+/−40% from perpendicular relative to a plane of the wider planar base to increase a distance between a masonry block and the first planar roughened section and the second planar roughened section as a mold is removed from the masonry block.

6. The apparatus of claim 1 wherein the one or more roughened sections form a first v-shaped section and a second v-shaped section.

7. The apparatus of claim 1 wherein the one or more roughened sections comprise a first planar roughened section, a second planar roughened section, a third planar roughened section and a fourth planar roughened section.

8. The apparatus of claim 1 wherein the one or more roughened sections comprise a first planar roughened section and a second planar roughened section that meet to form a first v-shaped section and a third planar roughened section and a fourth planar roughened section that meet to form a second v-shaped section.

9. The apparatus of claim 1 wherein the one or more roughened sections comprise a first planar roughened section and a second planar roughened section that meet to form a first v-shaped section and a third planar roughened section and a fourth planar roughened section that meet to form a second v-shaped section and an angle of incline from the wider planar base to the narrower planar top is 1.3 degrees+/−40% from perpendicular relative to a plane of the wider planar base.

10. The apparatus of claim 1 wherein the one or more roughened sections form a first v-shaped section and a second v-shaped section opposite the first v-shaped section.

11. The apparatus of claim 1 wherein the one or more roughened sections comprise a first planar roughened section and a second planar roughened section that are opposite a third planar roughened section and a fourth planar roughened section.

12. The apparatus of claim 1 wherein the one or more roughened sections comprise a first planar roughened section and a second planar roughened section that meet to form a first v-shaped section that is opposite a third planar roughened section and a fourth planar roughened section that meet to form a second v-shaped section.

13. The apparatus of claim 1 wherein the one or more roughened sections comprise a first planar roughened section and a second planar roughened section that meet to form a first v-shaped section and a third planar roughened section and a fourth planar roughened section that meet to form a second v-shaped section and an angle of incline from the wider planar base to the narrower planar top is 1.3 degrees+/−40% from perpendicular relative to a plane of the wider planar base.

14. The apparatus of claim 1 wherein the one or more roughened sections form a first shaped section and a second shaped section opposite the first shaped section.

15. The apparatus of claim 1 wherein the one or more roughened sections comprise a first roughened shaped section and a second roughened shaped section that are opposite a third roughened shaped section and a fourth roughened shaped section.

16. The apparatus of claim 1 wherein the one or more roughened sections comprise a first roughened shaped section and a second roughened shaped section that form a first combined shaped section that is separate from a third roughened shaped section and a fourth roughened shaped section that meet to form a second combined shaped section.

17. The apparatus of claim 1 wherein the one or more roughened sections comprise a first roughened shaped section and a second roughened shaped section that meet to form a first combined shaped section and a third roughened shaped section and a fourth roughened shaped section that meet to form a second combined section and an angle of incline from the wider planar base to the narrower planar top is 1.3 degrees+/−40% from perpendicular relative to a plane of the wider planar base.

18. The apparatus of claim 1 wherein the inclination between the wider planar base and the narrower planar top is sufficient to allow the debris to accumulate between a masonry block and the roughened section.

19. The apparatus of claim 1 wherein the inclination between the wider planar base and the narrower planar top is sufficient to allow the debris to accumulate between a masonry block and the roughened section when a mold is being removed.

20. The apparatus of claim 1 wherein the inclination between the wider planar base and the narrower planar top is sufficient to allow the debris to accumulate between a masonry block and the roughened section when a mold containing the roughened section is removed.

Assignments (3)
ENTITY CONVERSION - DE TO GA Recorded Jul 15, 2025
From: PAVESTONE, LLC
To: PAVESTONE, LLC
Reel/Frame 071931/0588 →
CHANGE OF ADDRESS OF ASSIGNEE Recorded Sep 16, 2020
From: PAVESTONE, LLC
To: PAVESTONE, LLC
Reel/Frame 053790/0860 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Aug 12, 2019
From: KARAU, WILLIAM H.
To: PAVESTONE, LLC
Reel/Frame 050030/0412 →
Continuity (2)
Provisional Application 62718172 · Aug 13, 2018
Related Publication 20200047373A1 · Feb 13, 2020
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