Patent · US Active

Connection of spring ends

US9394957B2 · kind B2 · utility

4Cited by

10References

14Claims

0Family size

Assignee

BAUMANN FEDERN AG · CH

Inventors

Roland Meier · Holzwickede, DE
David Scheidegger · Tann, CH
Andreas Hohl · Hannover, DE

Key dates

Filing date	May 30, 2013
Grant date	Jul 19, 2016
Priority date	—
Expiry date	May 30, 2033

Classification

Technology area (CPC F)Mechanical Engineering; Lighting; Heating
CPC primaryF16F1/123
WIPO fieldMachine tools
WIPO sectorMechanical engineering

Abstract

A connecting of spring ends of a strand of springs, wherein it is provided that the winding diameter of the end windings is reduced, at least in the area of each of the two ends, and the pitch of the end windings is increased in the area of each of the two ends relative to the pitch in the spring body, and that the two ends overlap in contact with one another over a section and are finally connected to one another.

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