Patent · US Expired

Anchoring of tension members

US4501516A · kind A · utility

3Cited by

3References

2Claims

0Family size

Assignee

BAYER HEALTHCARE LLC · DE

Inventors

Bernhard Kotulla · Cologne, DE
Martin Weiser · Sinsheim, DE
Jurgen Faltin · Langenfeld, DE
Lothar Preis · Bensberg, DE
Rudolf Schmidt · Giengen an der Brenz, DE
Eberhard Born · Cologne, DE

Key dates

Filing date	Nov 4, 1983
Grant date	Feb 26, 1985
Priority date	—
Expiry date	Nov 4, 2003

Classification

Technology area (CPC E)Fixed Constructions
CPC primaryE21D20/025
WIPO fieldCivil engineering
WIPO sectorOther fields

Abstract

By using a packer which is pushed as far over an anchor as the intended length of the moulding, the cavity in a borehole in the region of the bond can be completely filled with a reactive resin. Overhead work is possible even with slowly reacting resins. By using a catalyst on the packer, the reactive resin injected into the borehole behind the packer can be made to harden very rapidly.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.