Patent · US Active

Firestop collar

US12083366B2 · kind B2 · utility

0Cited by

118References

20Claims

0Family size

Assignee

Hilti Aktiengesellschaft · LI

Inventors

Herbert Muenzenberger · Wiesbaden, DE
Hans Henning Artmann · Munich, DE
Markus Koegler · Kaufering, DE
Egon Berghofer · Scheuring, DE

Key dates

Filing date	Feb 24, 2020
Grant date	Sep 10, 2024
Priority date	—
Expiry date	Feb 24, 2040

Classification

Technology area (CPC H)Electricity
CPC primaryH02G3/22
WIPO fieldElectrical machinery, apparatus, energy
WIPO sectorElectrical engineering

Abstract

A firestop collar for sealing of openings, especially of line penetrations, that pass through walls or ceilings, has a frame and a block of optionally intumescent material disposed therein, and is characterized in that the frame is of modular construction.

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