Patent · US Expired

Extension spring strut

US6942204B2 · kind B2 · utility

10Cited by

19References

17Claims

0Family size

Assignee

SUSPA GMBH · DE

Inventors

Herbert Wolf · Wooster, US
Reinhold Breinl · Freystadt, DE

Key dates

Filing date	Aug 7, 2003
Grant date	Sep 13, 2005
Priority date	—
Expiry date	Aug 7, 2023

Classification

Technology area (CPC F)Mechanical Engineering; Lighting; Heating
CPC primaryF16F2230/42
WIPO fieldCivil engineering
WIPO sectorOther fields

Abstract

An extension spring strut comprises a pre-loaded extension spring with a damper disposed therein. An operating element is disposed inside the extension spring, having an actuating tappet that is joined to an end of the extension spring. The actuating tappet is displaceable over a total range of travel that includes a damping range of the piston rod of the damper and a no-load range of the actuating tappet.

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