Patent · US Expired

Device for switching apparatus having a shaft

US4793721A · kind A · utility

0Cited by

4References

1Claims

0Family size

Assignee

Siemens Aktiengesellschaft · DE

Inventors

Gunter Prietzel · Berlin, DE
Ralf Seebold · Berlin, DE

Key dates

Filing date	Feb 25, 1988
Grant date	Dec 27, 1988
Priority date	—
Expiry date	Feb 25, 2008

Classification

Technology area (CPC H)Electricity
CPC primaryH01H2003/326
WIPO fieldElectrical machinery, apparatus, energy
WIPO sectorElectrical engineering

Abstract

An actuating device for an electric switching apparatus comprises a shaft as well as a tube which contains the bearings of the shaft, for instance, roller cages. The tube has lathe cuts which engage in openings in the walls and is thereby fixed in the axial direction. An alignment tolerance of the openings in the walls does not affect the properties of the bearing adversely.

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