Patent · US Expired

Electrical coil and method of producing the same

US4149135A · kind A · utility

27Cited by

5References

6Claims

0Family size

Assignee

Siemens Aktiengesellschaft · DE

Inventors

Gustav Roespel · Unterhaching, DE
Horst Scheffler · Munich, DE

Key dates

Filing date	Apr 14, 1977
Grant date	Apr 10, 1979
Priority date	—
Expiry date	Apr 14, 1997

Classification

Technology area (CPC Y)Emerging Cross-Sectional Technologies
CPC primaryY10T29/49071
WIPO fieldElectrical machinery, apparatus, energy
WIPO sectorElectrical engineering

Abstract

An electrical coil having a protective cap, a round ferrite core, an electrical winding and connective elements, which in assembly is suitable for installation in enveloped layer circuits, is comprised of a round core which is positioned, in one piece, on a ferrite base plate, a protective cap is secured onto the ferrite base plate and a winding is positioned about the core and has wire ends which are brought into contact, within the interior of the protective cap, with the connective elements which have a portion thereof arranged on the base plate surface facing away from the core and outside the interior of the protective cap.

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