Cofferdam for 4', 8' and 12' diameter tanks
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
-
Jan 21, 1997
Grant Date -
N/A
app pub date -
Oct 2, 1995
filing date -
Oct 2, 1995
priority date (Note) -
In Force
status (Latency Note)
Importance
Abstract
A hole shoring device that includes a support frame, a first hollow octagonal shaped sleeve, a frame linkage, a hollow second octagonal shaped sleeve, a first linkage, a second hollow octagonal shaped sleeve, a second linkage, a third hollow octagonal shaped sleeve, a third linkage, and a fourth hollow octagonal shaped sleeve. The support frame is positioned on an area around a hole in which a tank is to be buried. The first hollow octagonal shaped sleeve is disposed below the support frame and is positioned in the hole. The frame linkage removably connects the first hollow octagonal shaped sleeve and the support frame. The hollow second octagonal shaped sleeve is removably mounted within and extends below the hollow first octagonal shaped sleeve and is positioned in the hole. The first linkage removably connects the hollow second octagonal shaped sleeve and the hollow first octagonal shaped sleeve. The hollow third octagonal shaped sleeve is removably mounted within and extends below the hollow second octagonal shaped sleeve and is positioned in the hole. The second linkage removably connects the hollow third octagonal shaped sleeve and the hollow second octagonal shaped sleeve. The hollow fourth octagonal shaped sleeve is removably mounted within and extends below the hollow third octagonal shaped sleeve and positioned in the hole. And, the third linkage removably connects the hollow fourth octagonal shaped sleeve and the hollow third octagonal shaped sleeve.
First Claim
Other Claims data not available