IP Library Granted Patent US 7,547,371
Granted Patent B2
US 7,547,371 · App. 11/097,410 · Granted Jun 16, 2009

Composite architectural column

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Quick Facts
Patent No.
US 7,547,371
App. No.
11/097,410
Granted
Jun 16, 2009
Kind
B2
Abstract

An architectural column includes a tubular column body having a longitudinal axis extending from a first end to a second end, at least one inner layer, at least one support layer and at least one outer layer, wherein the support layer includes a composite fabric having fibers and a bonding resin.

Claims (32)

1. A method of making an architectural column, comprising:

forming an inner layer of a column body about a mandrel;

forming a support layer of a column body around said inner layer;

forming an outer layer of a column body around said support layer; and

removing said mandrel;

wherein said support layer comprises a composite fabric having fibers and a bonding resin, said support layer comprising of a pre-manufactured sheet of composite fabric, and wherein said column has a longitudinal axis extending from a first end to a second end;

wherein said composite fabric support layer has a length substantially equal to a length of said architectural column; and

wherein said fabric has a width substantially equal to a circumference of an outer surface of said inner layer wherein said composite fabric forms the support layer without creating a ridge or gap at a seam.

2. The method of claim 1 , wherein said composite fabric comprises a unidirectional fabric.

3. The method of claim 2 , wherein said unidirectional fabric comprises a weft unidirectional fabric.

4. The method of claim 2 , wherein a majority of said composite fabric fibers are aligned between approximately 0° and 20° relative to said longitudinal axis.

5. The method of claim 1 , wherein said inner layer and said outer layer are formed via filament-winding.

6. The method of claim 5 , wherein said filament-winding comprises one of hoop winding, helical winding, or polar winding.

7. The method of claim 5 , wherein said filament-winding comprises prepreg or wet-winding.

8. The method of claim 1 , wherein said support layer is formed by wrapping said composite fabric around said inner layer.

9. The method of claim 8 , further comprising coating said composite fabric with a bonding resin.

10. The method of claim 8 , wherein said outer layer is formed around said support layer.

11. The method of claim 1 , further comprising curing said inner layer, said support layer, and said outer layer.

12. A method comprising:

forming a column body including filament-winding an inner layer around a mandrel, wrapping a pre-manufactured sheet of composite fabric around said inner layer, and filament-winding an outer layer around said composite fabric; and

removing said mandrel;

wherein said composite fabric includes fibers and a bonding resin;

wherein said composite fabric has a length substantially equal to a length of said column body;

wherein said fabric has a width substantially equal to a circumference of an outer surface of said inner layer wherein said fabric is wrapped such that a ridge or gap is not created at a seam.

13. The method of claim 12 , wherein said composite fabric comprises a unidirectional fabric.

14. The method of claim 13 , wherein a majority of said composite fabric fibers are aligned between approximately 0° and 20° relative to a longitudinal axis of said column body.

15. The method of claim 12 , further comprising:

curing said column body; and

removing said column body from said mandrel.

16. The method of claim 12 , further comprising:

applying an outer surface to said column body; and

attaching a base, a plinth, or a capital to said column body.

Assignments (3)
RELEASE OF SECURITY INTEREST Recorded Dec 18, 2023
From: CAI DEBT INVESTOR, LLC
To: TDJ BUYER, LLC
Reel/Frame 065893/0729 →
SECURITY INTEREST Recorded Aug 28, 2019
From: TDJ INCORPORATED
To: CAI DEBT INVESTOR, LLC
Reel/Frame 050202/0978 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Aug 26, 2019
From: CHRISTENSEN, ROLAND J.; CHRISTENSEN, JASON
To: TDJ BUYER, LLC
Reel/Frame 050164/0271 →