Patent · US Active

Spring element and fire-resistant cover layer

US12055192B2 · kind B2 · utility

0Cited by

1References

19Claims

0Family size

Assignee

GMT GUMMI-METALL-TECHNIK GMBH · DE

Inventors

Jakob Kern · Karlsruhe, DE
MARCUS PICKARD · Bühl, DE
Martin Meier · Heidenheim, DE
Erick Lüerssen · Karlsruhe, DE

Key dates

Filing date	Mar 13, 2020
Grant date	Aug 6, 2024
Priority date	—
Expiry date	Jul 10, 2040

Classification

Technology area (CPC F)Mechanical Engineering; Lighting; Heating
CPC primaryF16F2230/0023
WIPO fieldMechanical elements
WIPO sectorMechanical engineering

Abstract

The invention relates to a spring element for vibration damping and/or suspension of a rail vehicle, comprising at least one elastic damping body and at least one fire-resistant cover layer arranged on the damping body, the cover layer having at least one compensation zone, wherein the compensation zone is compressed in the loaded state of the spring element such that wrinkling of the cover layer is prevented, wherein the cover layer and the damping body are inseparably connected to form a composite element. The invention further relates to a cover layer and the use of a spring element or a cover layer.

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