IP Library Granted Patent US 8,464,491
Granted Patent B2
US 8,464,491 · App. 12/623,907 · Granted Jun 18, 2013

Column block system

View Patent ↗
Loading inventors, assignments & file history…
Monitor This Case
Get email alerts when status or documents change.
Order Certified Copies
Most orders are placed with the USPTO same day — all within 24 business hours.
Order via The Patent Place →
Pre-filled with this patent's details
Quick Facts
Patent No.
US 8,464,491
App. No.
12/623,907
Granted
Jun 18, 2013
Kind
B2
Abstract

A system of blocks is configured to be compatible with each other in the construction of a columnar structure. Each block has four faces and all four faces may generally have the same dimensions. The width of the blocks may generally be about twice their height. The faces of the block also may contain a slot to add an aesthetic appearance to the column. The blocks have certain constructions features that mate with specially constructed brackets in attaching a fence panel to the completed column. The blocks have interlocking elements or projections that permit positive connection between courses of blocks. Projections of one block extend into the core another block. Adjacent blocks can be rotated 90 degrees relative to each other about a vertical axis of each block with each course. The blocks can be used to construct a column that is easy to install and structurally sound.

Claims (29)

1. A block system for constructing a column having a vertical axis comprising:

a plurality of blocks configured to be stacked vertically to form a column, each block having an upper surface spaced apart from an opposed lower surface, thereby defining a block thickness; opposed first and second side surfaces extending between the upper and lower surfaces; opposed third and fourth side surfaces extending between the upper and lower surfaces, the opposed first and second side surfaces extending between the third and fourth side surfaces and the opposed third and fourth side surfaces extending between the first and second side surfaces, the upper and lower surfaces together with the side surfaces defining a block body; each block further having an interlocking member including at least one projection extending from one of the upper and lower surfaces and at least one indentation extending into the other of the upper and lower surfaces, the interlocking member being configured such that when a first block is stacked vertically adjacent to a second block to form a column the at least one projection of the first block is received in the at least one indentation of the second block to interlock the first block with the second block, the at least one projection and the at least one indentation being positioned to prevent the first and second blocks from interlocking when forming the column unless the first side surface of the first block is in the same plane as one of the third and fourth side surfaces of the second block;

wherein each block further has at least one recessed area in the upper or lower surface of the block having the projection, the recessed area extending from the indentation towards one of the first, second, third and fourth side surfaces and ending a distance from the one of the first, second, third and fourth side surface surfaces.

2. The block system according to claim 1 , wherein the indentation comprises a core.

3. The block system according to claim 2 , wherein the at least one recessed area is four recessed areas, each recessed area extending from the core towards one of the first, second, third and fourth side surfaces and ending a distance from the one of the first, second, third and fourth side surfaces.

4. The block system according to claim 1 , wherein the at least one projection extends from the upper surface of each of the plurality of blocks.

5. The block system according to claim 1 , wherein the at least one projection is two projections.

6. The block system according to claim 5 , wherein the two projections are located diagonally opposite each other in a core of each of the plurality of blocks.

7. The block system according to claim 1 , wherein a slot extends the thickness of each of the plurality of blocks on two side surfaces selected from the first and second side surfaces and the third and fourth side surfaces.

8. The block system according to claim 7 , wherein the slot extends on each of the side surfaces.

9. A method of constructing a column of blocks having a vertical axis comprising:

providing a plurality of blocks, wherein each block has an upper surface spaced apart from an opposed lower surface, thereby defining a block thickness, opposed first and second side surfaces extending between the upper and lower surfaces, opposed third and fourth side surfaces extending between the upper and lower surfaces, the opposed first and second side surfaces extending between the third and fourth side surfaces and the opposed third and fourth side surfaces extending between the first and second side surfaces, the upper and lower surfaces together with the side surfaces defining a block body, a core extending the thickness of the block, and each block further including at least one projection extending from one of the upper surface and the lower surface of the block; and

stacking first and second blocks vertically such that the at least one projection on the first block is received within the core of the second block to thereby interlock the first and second blocks, the at least one projection on the first block and the core of the second block being sized and positioned such that the first and second blocks are prevented from interlocking unless the first side surface of the first block is in the same plane as one of the third and fourth side surfaces of the second block;

wherein each block further has at least one recessed area in the upper or lower surface of the block having the projection, the recessed area extending from the core towards one of the first, second, third and fourth side surfaces and ending a distance from the one of the first, second, third and fourth side surface surfaces.

10. The method according to claim 9 , wherein the first and second blocks are placed such that the cores of the first and second blocks align vertically, the method further comprising filling the cores with reinforcement.

11. The method according to claim 10 , wherein the reinforcement is selected from steel pipe and post-tension rods.

12. The method according to claim 9 , wherein the core has first and second opposing walls generally parallel to the first and second side surfaces and third and fourth opposing walls generally parallel to the third and fourth side surfaces.

13. The method according to claim 9 wherein the at least one projection is two projections located diagonally opposite each other on the block body.

14. The method according to claim 9 wherein a slot extends the thickness of each block on two side surfaces selected from the first and second side surfaces and the third and fourth side surfaces.

15. The method according to claim 9 wherein the at least one recessed area is four recessed areas, each recessed area extending from the core towards one of the first, second, third and fourth side surfaces and ending a distance from the one of the first, second, third and fourth side surfaces.

16. The method according to claim 9 further comprising forming a base on which one of the first and second blocks is placed.

17. The method according to claim 16 further comprising placing the first and second blocks such that the cores of the first and second blocks align vertically, the method further comprising placing a pipe vertically within the cores of the first and second blocks and forming the base about the pipe.

18. The method according to claim 9 wherein a slot extends the thickness of each block on each of the four side surfaces.

19. The column constructed by the method of claim 9 .

20. A method of constructing a column of blocks having a vertical axis comprising:

providing a plurality of blocks, wherein each block has an upper surface spaced apart from an opposed lower surface, thereby defining a block thickness, opposed first and second side surfaces extending between the upper and lower surfaces, opposed third and fourth side surfaces extending between the upper and lower surfaces, the opposed first and second side surfaces extending between the third and fourth side surfaces and the opposed third and fourth side surfaces extending between the first and second side surfaces, the upper and lower surfaces together with the side surfaces defining a block body, a core extending the thickness of the block, and each block further including at least one projection extending from one of the upper surface and the lower surface of the block;

forming a base on which one of the blocks is placed;

stacking first and second blocks vertically such that the at least one projection on the first block is received within the core of the second block to thereby interlock the first and second blocks, the at least one projection on the first block and the core of the second block being sized and positioned such that the first and second blocks are prevented from interlocking unless the first side surface of the first block is in the same plane as one of the third and fourth side surfaces of the second block; and

forming a first of a mating pair of connectors into the base, placing the column of blocks, connecting a second of a mating pair of connectors to the first connector, the second mating pair of connectors having fixed thereto a tension rod, the tension rod dimensioned to extend through vertically aligned cores of the block column, and applying tension to the tension rod.

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 Nov 24, 2009
From: MACDONALD, ROBERT A.; DAWSON, WILLIAM B.
To: KEYSTONE RETAINING WALL SYSTEMS, INC.
Reel/Frame 023564/0895 →