Patent · US Expired

Method and apparatus for introducing and joining diaphragms in slotted walls

US4838980A · kind A · utility

4Cited by

10References

11Claims

0Family size

Assignee

Ed. Zublin Aktiengesellschaft · DE

Inventors

Eberhard Glaser · Esslingen am Neckar, DE
Eberhard Beitinger · Stuttgart, DE
Manfred Nussbaumer · Leonberg, DE

Key dates

Filing date	Apr 10, 1987
Grant date	Jun 13, 1989
Priority date	—
Expiry date	Apr 10, 2007

Classification

Technology area (CPC Y)Emerging Cross-Sectional Technologies
CPC primaryY10T156/1798
WIPO fieldCivil engineering
WIPO sectorOther fields

Abstract

A method and apparatus of introducing and joining diaphragms in slotted walls. The slotted inner connecting pipe of one diaphragm is introduced into the slotted outer connecting pipe of another diaphragm. An apparatus for fusing together the two connecting pipes is placed within the interior of the inner pipe and can move through the latter. The apparatus has a heating device for heating and fusing the two connecting pipes together.

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