Patent · US Active

Shear screw

US8317443B2 · kind B2 · utility

22Cited by

8References

6Claims

0Family size

Assignee

NEXANS · FR

Inventors

Ing Gart Stauch · Hof, DE
Volker Markgraf · Rödental, DE
Rainer Bachmann · Bärnau, DE
Peter Grötsch · Rehau, DE

Key dates

Filing date	Nov 17, 2008
Grant date	Nov 27, 2012
Priority date	—
Expiry date	Nov 17, 2028

Classification

Technology area (CPC H)Electricity
CPC primaryH01R4/363
WIPO fieldElectrical machinery, apparatus, energy
WIPO sectorElectrical engineering

Abstract

A shear screw has predetermined breaking points in two planes, separated axially from one another, and it has centrally a blind hole extending over a substantial length and having a cross section which is suitable for transmitting a torque to the shear screw by means of a pin-like tool of adapted dimensions which can be inserted into the blind hole. The blind hole extends to about level with the predetermined breaking point which is arranged in the lower region, facing the end face of the shear screw, of the latter and has a strength greater than that of the other predetermined breaking point.

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