Richard John Hartman
Engineers at Ransom Rd, Clarence, NY

6420014, Jul 16, 2002

Dec 28, 1999

09/473757

Richard J. Hartman - Clarence NY

L. B. Foster Company - Pittsburgh PA
Chaparral Steel Company - Dallas TX

B32B 100

428156, 428174, 405274, 405276, 527241, 527261, 527306

This invention is directed to an improved Z-shaped sheet piling ( ). In the preferred embodiment, the piling has a first flange ( ), a web ( ), a second flange ( ), a section modulus of at least about 25 in. /ft. , a weight of less than about 31 lbs. /ft. , the second flange having a wale location ( ), and the web, first flange and second flange being so dimensioned and configured that the transverse stress at the wale location for each psi of applied pressure load is less than about 1000 psi. The present invention also discloses a Z-shaped sheet piling in which the first flange has a span location ( ) and the first flange, web, and second flange are so dimensioned and configured that the transverse stress at the span location for each psi of applied load is less than about 800 psi. The transverse stress at the wale location may be about 878 psi per psi of applied load and the transverse stress at the span location may be about 731 psi per psi of applied load or about 786 psi per psi of applied load. The piling may have a moment of inertia of about 188. 66 in. /ft.

7168891, Jan 30, 2007

Jan 17, 2006

11/332916

Richard J. Hartman - Clarence NY, US

Chaparral Steel Company - Dallas TX

E02D 5/08

405276, 405278

A sheet piling () comprising a first flange (), a second flange (), a web (), a junction () between the first flange and the web, the junction having a substantially concave inner surface (), the inner surface comprising at least a first concave surface of first radius () and a second concave surface of second radius (). The inner surface may further comprise a third concave surface of third radius ().

7018140, Mar 28, 2006

Nov 23, 2004

10/995656

Richard J. Hartman - Clarence NY, US

Chaparral Steel Company - Dallas TX

E02D 5/08

405276, 405278

An improved Z-shaped sheet piling () comprising a first flange (), a second flange (), a web (), a junction () between the first flange and the web, the junction having an inner surface (), the inner surface defined by at least a first radius () and a second radius (). The inner surface may be further defined by a third radius (). The sheet piling may comprise a first flange () having a substantially planar flange surface (), a second flange (), a web () having a substantially planar web surface (), a junction () between the first flange and the web, the junction having a fillet portion () defined by the planes of the web surface and flange surface extended to an intersection () and an inner substantially arcuate surface () intersecting the web surface and flange surface, the inner arcuate surface defined by at least a first radius () and a second radius (). The inner arcuate surface may be further defined by a third radius ().

7360969, Apr 22, 2008

Dec 13, 2006

11/637973

Richard J. Hartman - Clarence NY, US

Chaparral Steel Company - Midlothian TX

E02D 5/08

405276, 405278

A sheet piling () comprising a flange (), a web (), a junction () between the flange and the web, the junction having a substantially concave inner surface (), the inner surface comprising at least a first concave surface of first radius () and a second concave surface of second radius (). The inner surface may further comprise a third concave surface of third radius ().