Patent · US Expired

Assembly unit including a component and at least one thread forming screw

US6722832B2 · kind B2 · utility

3Cited by

5References

19Claims

0Family size

Assignee

KAMAX-Werke Rudolf Kellermann GmbH & Co. KG · DE

Inventors

Gunther Hartmann · Munich, DE
Wolfgang Sommer · Gemünden (Wohra), DE
Frank Wagner · Reiskirchen, DE

Key dates

Filing date	Oct 23, 2002
Grant date	Apr 20, 2004
Priority date	—
Expiry date	Oct 23, 2022

Classification

Technology area (CPC Y)Emerging Cross-Sectional Technologies
CPC primaryY10S411/999
WIPO fieldMechanical elements
WIPO sectorMechanical engineering

Abstract

An assembly unit includes a component including at least one through hole and at least one screw. The screw is associated with the through hole of the component. The screw is designed and arranged to produce a thread. The screw includes a head and a supporting surface to face the component. The screw includes a shank at least partly including a thread. The screw in the region of the shank and close to the supporting surface includes an annular channel, the diameter of the annular channel being less than the core diameter of the thread of the screw and the effective axial length of the annular channel being more than the axial length of the through hole. The diameter of the through hole of the component is more than the core diameter of the thread of the screw and being less than the outer diameter of the thread of the screw.

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