IP Library Granted Patent US 7,360,969
Granted Patent B2
US 7,360,969 · App. 11/637,973 · Granted Apr 22, 2008

Z-shaped sheet piling

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Quick Facts
Patent No.
US 7,360,969
App. No.
11/637,973
Granted
Apr 22, 2008
Kind
B2
Abstract

A sheet piling ( 15 ) comprising a flange ( 16 ), a web ( 19 ), a junction ( 20 ) between the flange and the web, the junction having a substantially concave inner surface ( 44 ), the inner surface comprising at least a first concave surface of first radius ( 23 a ) and a second concave surface of second radius ( 23 b ). The inner surface may further comprise a third concave surface of third radius ( 23 c ).

Claims (17)

1. A sheet piling comprising:

a flange;

a web;

a junction between said flange and said web;

said junction having a substantially concave inner surface;

said inner surface comprising at least a first concave surface of a first radius, a second concave surface of a second radius and a third concave surface of a third radius; and

said second radius being different from said first radius.

2. The sheet piling of claim 1 , wherein said third radius is different from said first radius.

3. The sheet piling of claim 2 , wherein said third radius is different from said second radius.

4. The sheet piling of claim 1 , wherein said third radius is substantially the same as said first radius.

5. The sheet piling of claim 4 , wherein said second concave surface is between said first concave surface and said third concave surface.

6. A sheet piling comprising:

a flange;

a web;

a junction between said flange and said web;

said junction having a substantially concave inner surface;

said inner surface comprising at least a first concave surface of a first radius and a second concave surface of a second radius that is different from said first radius.

Assignments (4)
RELEASE OF SECURITY INTEREST Recorded Apr 13, 2011
From: BANK OF AMERICA, N.A., AS AGENT
To: GERDAU AMERISTEEL US INC.; CHAPARRAL STEEL COMPANY; GERDAU AMERISTEEL WC, INC.
Reel/Frame 026120/0382 →
SECURITY AGREEMENT Recorded Dec 21, 2009
From: GERDAU AMERISTEEL US INC.; CHAPARRAL STEEL COMPANY; GERDAU AMERISTEEL WC, INC.
To: BANK OF AMERICA, N.A, AS AGENT
Reel/Frame 023679/0497 →
SECURITY AGREEMENT Recorded Aug 22, 2008
From: CHAPARRAL STEEL COMPANY
To: BANK OF AMERICA, N.A.
Reel/Frame 021423/0954 →
CONFIRMATORY ASSIGNMENT Recorded Dec 11, 2007
From: HARTMAN, RICHARD J.
To: CHAPARRAL STEEL COMPANY
Reel/Frame 020227/0877 →