Patent · US Active

Method for joining components by means of tensioning bolts

US8375554B2 · kind B2 · utility

6Cited by

4References

7Claims

0Family size

Assignee

WAGNER VERMÖGENSVERWALTUNGS-GMBH & CO. KG · DE

Inventors

Paul Wagner · Mülheim an der Ruhr, DE
Bernd Thelen · Much, DE
Ulf Sittig · Bad Wurzach, DE
Günter Andres · Much, DE

Key dates

Filing date	Jan 21, 2008
Grant date	Feb 19, 2013
Priority date	—
Expiry date	Sep 12, 2029

Classification

Technology area (CPC Y)Emerging Cross-Sectional Technologies
CPC primaryY10T29/53687
WIPO fieldMachine tools
WIPO sectorMechanical engineering

Abstract

A method for joining components using tensioning bolts, wherein the pressure is linearly increased over time when the tension bolt is hydraulically tensioned by means of a tensioning device. When a target value (Pmax) is reached, the volume is blocked so that no more hydraulic oil is supplied. The pressure decreases when the components show a setting behaviour during a holding time (tH). Pumping is resumed when a lower threshold value (PI) is reached, resulting in a pressure increase up to the target value (Pmax).

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