| |
 |
|
|
Inventor: Toliver; Timothy R.
Address: Findlay, OH
No. of patents: 4
Patents:
| Patent Number |
Title Of Patent |
Date Issued |
| 7063108 |
Corrugation structure for pipe |
June 20, 2006 |
| A corrugated pipe 2 has a plurality of corrugation structures 10, 12 positioned adjacent one another. The corrugation structures 10, 12 comprise an inner cylindrical wall 22, two annular wall portions 28, 32 that extend outwardly from the inner cylindrical wall 22, and a bowed annula |
| 6941972 |
Corrugated pipe |
September 13, 2005 |
| A corrugation has a radially inner wall circumferentially surrounding an axis. The inner wall defines an inner cavity configured to conduct a liquid axially through the inner cavity. A radially outer wall of the corrugation overlies the inner wall. The outer wall adjoins the inner wall |
| 6840285 |
Corrugation structure for pipe |
January 11, 2005 |
| A corrugated pipe (2) has a plurality of corrugation structures (10, 12) positioned adjacent one another. The corrugation structures (10, 12) comprise an inner cylindrical wall (22), two annular wall portions (28, 32) that extend outwardly from the inner cylindrical wall (22), and a |
| 6578882 |
Corrugated pipe structure |
June 17, 2003 |
| A pipe structure includes an annular corrugation centered on an axis. The corrugation has a cylindrical liner centered on the axis, two annular sidewalls extending radially outward from axially opposite ends of the liner, and an annular crown extending axially between radially outer ends |
|
|
|
