IP Library Granted Patent US 8,511,024
Granted Patent B2
US 8,511,024 · App. 12/551,070 · Granted Aug 20, 2013

Veneers for walls, retaining walls and the like

Inventors: Robert A. MacDonald (Plymouth, MN); William B. Dawson (Medina, MN)
Assignee: Keystone Retaining Wall Systems LLC
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Quick Facts
Patent No.
US 8,511,024
App. No.
12/551,070
Granted
Aug 20, 2013
Kind
B2
Abstract

A veneer panel system is used with a wall or a retaining wall to provide a natural stone appearance and/or to improve the appearance of an existing wall. Panels can be interlocked to form a stable veneer structure. The structure is attached to a wall by various attachment devices.

Claims (51)

1. A method of constructing a wall having a visually appealing exposed wall surface comprising:

providing a plurality of wall blocks, at least some of the wall blocks having a recessed surface;

stacking the plurality of wall blocks in courses to form a continuous exposed wall surface, each recessed surface forming a channel between a top surface of a wall block in a first course and a bottom surface of a wall block in a second adjacent course;

providing a plurality of connecting elements having a first portion and a second portion;

providing a plurality of facing members having a front face and a back face, the front face having a visually appealing pattern or texture;

connecting the facing members to the exposed wall surface with the connecting elements such that the first portions of the connecting elements are received in the recessed surfaces of the wall blocks and the second portions of the connecting elements are connected to the facing members such that the facing members cover the exposed wall surface and the front faces of the facing members collectively form a visually appealing exposed wall face, and

wherein the wall blocks have at least one core open to the top surface and bottom surface and wherein the recessed surface is open to the core.

2. The method of claim 1 wherein the wall blocks comprise concrete.

3. The method of claim 1 wherein the facing members comprise fiberglass.

4. The method of claim 1 wherein the facing members comprise mineral aggregate in fiberglass.

5. The method of claim 1 wherein the facing members comprise one of stone particles, sand and mineral mixed with resin.

6. The method of claim 1 wherein the step of connecting the facing members to the exposed wall surface with the connecting elements comprises connecting each connecting element to the back face of at least one facing member.

7. The method of claim 1 wherein the decorative front faces of the facing members have an appearance of stone.

8. The method of claim 1 wherein the facing members are formed in a mold by a molding process and wherein the step of connecting the facing members to the exposed wall surface with the connecting elements comprises embedding a portion of each connecting element in the mold of a facing member during the molding process of the facing members.

9. The method of claim 1 wherein the facing members are rectangular and have four side surfaces separating the front and back faces, two of the side surfaces having tongue members, the other two of the side surfaces having groove members.

10. The method of claim 9 wherein the side surfaces having tongue members are adjacent side surfaces.

11. The method of claim 1 wherein the decorative front faces of the facing members have a rectangular shape of a size selected to meet aesthetic or functional requirements of the wall.

12. The method of claim 1 wherein the wall is a retaining wall.

13. The method of claim 1 wherein during the step of connecting the facing members to the exposed wall surface with the connecting elements the back faces of the facing members are spaced a predetermined distance from the exposed wall surface.

14. The method of claim 1 wherein the recessed surface is on the bottom surface of the wall block.

15. The method of claim 1 wherein the connecting elements have end segments and wherein when the first portions of the connecting elements are received in the recessed surfaces, the end segments of the connecting elements are received in the cores of the wall blocks.

16. The method of claim 15 wherein the end segments are perpendicular to the first portions.

17. The method of claim 1 further comprising laying at least one layer of geogrid between at least one course of wall blocks.

18. The method of claim 17 wherein the at least one layer of geogrid is pulled up over a front surface and back around the top surface of the wall blocks of at least one upper course.

19. A method of constructing a wall having a visually appealing exposed wall surface comprising:

providing wall blocks, each wall block having a recessed surface;

stacking a plurality of the wall blocks in a first course;

stacking a plurality of the wall blocks in a second course, the first and second courses forming an exposed wall surface, each recessed surface forming a channel between a top surface of one of the wall blocks in the first course and a bottom surface of one of the wall blocks in the second adjacent course;

providing a plurality of connecting elements;

providing a plurality of facing members having a front face and a back face, the front face having a visually appealing pattern or texture;

inserting a first portion of a first connecting element into a recessed surface; and

connecting a second portion of the first connecting element to one of the facing members such that the one facing member covers a portion of the exposed wall surface, and

wherein each wall block has at least one core open to the top surface and bottom surface and wherein the recessed surface is open to the core.

20. The method of claim 19 wherein the wall blocks comprise concrete.

21. The method of claim 19 wherein the facing members comprise fiberglass.

22. The method of claim 19 wherein the facing members comprise mineral aggregate in fiberglass.

23. The method of claim 19 wherein the facing members comprise one of stone particles, sand and mineral mixed with resin.

24. The method of claim 19 wherein the step of connecting the second portion to the one facing member comprises connecting the second portion of the first connecting element to the back face of the one facing member.

25. The method of claim 19 wherein the decorative front faces of the facing members have an appearance of stone.

26. The method of claim 19 wherein the facing members are formed in a mold by a molding process and wherein the step of connecting the second portion of the first connecting element to the one facing member comprises embedding the second portion in the mold of the one facing member during the molding process of the one facing member.

27. The method of claim 19 wherein the facing members are rectangular and have four side surfaces separating the front and back faces, two of the side surfaces having tongue members, the other two of the side surfaces having groove members.

28. The method of claim 27 wherein the side surfaces having tongue members are adjacent side surfaces.

29. The method of claim 19 wherein the decorative front faces of the facing members have a rectangular shape of a size selected to meet aesthetic or functional requirements of the wall.

30. The method of claim 19 wherein the first and second portions of the connecting elements are not integrated.

31. The method of claim 19 wherein the wall is a retaining wall.

32. The method of claim 19 wherein during the connecting step the back face of the one facing member is spaced a predetermined distance from the exposed wall surface.

33. The method of claim 19 wherein the first connecting element has an end segment and wherein when the first portion of the first connecting element is inserted into the recessed surface, a first end segment portion of the end segment of the first connecting element is received in the core of the wall block.

34. The method of claim 33 wherein the end segment is perpendicular to another segment of the first portion.

35. The method of claim 34 wherein a second end segment portion of the end segment of the first connection element is received in the core of a wall block in an adjacent course of wall blocks.

36. The method of claim 19 further comprising laying at least one layer of geogrid between the first and second courses of wall blocks.

37. The method of claim 36 wherein the at least one layer of geogrid is pulled up over a front surface and back around the top surface of the wall blocks of at least one upper course.

Assignments (9)
SECURITY INTEREST Recorded Dec 8, 2016
From: KEYSTONE RETAINING WALL SYSTEMS LLC
To: WELLS FARGO BANK, NATIONAL ASSOCIATION, AS AGENT
Reel/Frame 040852/0143 →
RELEASE OF SECURITY INTEREST Recorded Dec 2, 2016
From: WELLS FARGO CAPITAL FINANCE, LLC
To: KEYSTONE RETAINING WALL SYSTEMS LLC
Reel/Frame 040798/0001 →
RELEASE OF SECURITY INTEREST Recorded Nov 28, 2016
From: GOLDMAN SACHS LENDING PARTNERS, LLC
To: KEYSTONE RETAINING WALL SYSTEMS LLC
Reel/Frame 040692/0055 →
RELEASE OF SECURITY INTEREST Recorded Aug 7, 2013
From: WELLS FARGO BANK, NATIONAL ASSOCIATION
To: CONTECH ENGINEERED SOLUTIONS LLC (F/K/A CONTECH CONSTRUCTION PRODUCTS INC.); KEYSTONE RETAINING WALL SYSTEMS LLC (F/K/A KEYSTONE RETAINING WALL SYSTEMS INC.); CONTECH TRUCKING & LOGISTICS, LLC
Reel/Frame 030964/0588 →
NOTICE OF GRANT OF SECURITY INTEREST IN PATENTS Recorded Jun 18, 2013
From: KEYSTONE RETAINING WALL SYSTEMS LLC; CONTECH ENGINEERED SOLUTIONS LLC; IMBRIUM SYSTEMS LLC
To: GOLDMAN SACHS LENDING PARTNERS LLC
Reel/Frame 030634/0040 →
SECURITY INTEREST Recorded Feb 21, 2012
From: CONTECH ENGINEERED SOLUTIONS LLC; CONTECH BRIDGE SOLUTIONS LLC; CONTECH STORMWATER SOLUTIONS LLC; KEYSTONE RETAINING WALL SYSTEMS LLC; CDS TECHNOLOGIES LLC; CONTECH EARTH STABILIZATION SOLUTIONS LLC
To: WELLS FARGO CAPITAL FINANCE, LLC
Reel/Frame 028014/0952 →
CERTIFICATE OF CONVERSION Recorded Feb 3, 2012
From: KEYSTONE RETAINING WALL SYSTEMS, INC.
To: KEYSTONE RETAINING WALL SYSTEMS LLC
Reel/Frame 027646/0388 →
SECURITY AGREEMENT Recorded Sep 22, 2010
From: CONTECH CONSTRUCTION PRODUCTS, INC.; CONTECH BRIDGE SOLUTIONS INC.; CDS TECHNOLOGIES, INC.; CONTECH EARCH STABILIZATION SOLUTIONS INC.; CONTECH TECHNOLOGIES, LLC; CONTECH TRUCKING & LOGISTICS, LLC; SAFETY PRECAST, INC.; SUPERIOR DRAINAGE, LLC; WEST TEXAS CULVERTS, INC.; THOMPSON CULVERT COMPANY; ARMORTEC, LLC; KEYSTONE RETAINING WALL SYSTEMS, INC.; ALLIANCE CONSTRUCTION PRODUCTS INC.; CONTECH STORMWATER SOLUTIONS INC.
To: WELLS FARGO BANK, N.A.
Reel/Frame 025026/0472 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Sep 1, 2009
From: MACDONALD, ROBERT A.; DAWSON, WILLIAM B.
To: KEYSTONE RETAINING WALL SYSTEMS, INC.
Reel/Frame 023177/0715 →
Continuity (3)
Continuation 11117077 · Apr 28, 2005
Provisional Application 60566616 · Apr 29, 2004
Related Publication 20090313936A1 · Dec 24, 2009