Patent · US Expired

System for anchoring a tendon in a structural concrete unit

US4343122A · kind A · utility

21Cited by

2References

8Claims

0Family size

Assignee

Dyckerhoff & Widmann Aktiengesellschaft · DE

Inventors

Johann Wlodkowski · Munich, DE
Dieter Jungwirth · Munich, DE

Key dates

Filing date	Jan 23, 1981
Grant date	Aug 10, 1982
Priority date	—
Expiry date	Jan 23, 2001

Classification

Technology area (CPC E)Fixed Constructions
CPC primaryE04C5/122
WIPO fieldCivil engineering
WIPO sectorOther fields

Abstract

In a system for anchoring a tendon extending through a structural concrete unit, an anchoring member is located at the outside surface of the concrete unit and has a frusto-conical passage through which a tendon passes as it extends outwardly from the concrete unit. A cap fits over the outer surface of the anchoring member and forms a closure over its frusto-conical passage. The cap is shaped so that it has an inwardly projecting portion which seats against the outer ends of wedge parts securing the tendon within the passage in the anchoring member. The projection on the cap exerts a compressive force holding the wedge parts in place. Further, during construction of the concrete unit, the cap can secure the wedge parts against displacement.

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