Patent · US Expired

Flexible conduit for the exhaust line for an internal combustion engine

US5482089A · kind A · utility

21Cited by

18References

4Claims

0Family size

Assignee

VOLKSWAGEN AKTIENGESELLSCHAFT · DE

Inventors

Otto Weber · Wolfsburg, DE
Siegfried Grohnert · Lehre, DE
Rolf Kirsch · Braunschweig, DE

Key dates

Filing date	Nov 29, 1994
Grant date	Jan 9, 1996
Priority date	—
Expiry date	Nov 29, 2014

Classification

Technology area (CPC F)Mechanical Engineering; Lighting; Heating
CPC primaryF16L11/15
WIPO fieldEnvironmental technology
WIPO sectorChemistry

Abstract

A flexible conduit for the exhaust line of an internal combustion engine includes a flexurally supple tube having several helical corrugations of equal pitch and a flexible supporting coil spring having its ends fixedly connected to flanges at opposite ends of the tube and which is frictionally received in the trough of one of the helical corrugations.

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