Grout pack restraining system

Details Grout pack restraining system Grout pack restraining system

2006-06-12

2010-02-02

Mayo-Pinnock, T. (Department: 3671)

Hydraulic and earth engineering

Earth treatment or control

Shoring, bracing, or cave-in prevention

C248S351000, C299S011000

Reexamination Certificate

active

07654777

ABSTRACT:
The invention provides a grout pack restraining system, comprising a plurality of elongate elements shaped to extend about a grout pack and which are characterized in that they are configured to control circumferential expansion of the grout pack beyond the expansion permitted through material yield of the elements. In one embodiment the rings of different diameter are secured about the grout pack. In a further embodiment the rings are configured to be circumferentially expandable are secured about the grout pack.

REFERENCES:
patent: 1661238 (1928-03-01), Sloan
patent: 2990166 (1961-06-01), Walsh
patent: 3041838 (1962-07-01), Sieben
patent: 3525551 (1970-08-01), Mallander
patent: 4983077 (1991-01-01), Sorge et al.
patent: 5823718 (1998-10-01), Du Plessis
patent: 6655877 (2003-12-01), Calhoun
patent: 2002/0136607 (2002-09-01), Merz

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