Patent · US Active

Firestop collar

US10596399B2 · kind B2 · utility

1Cited by

27References

10Claims

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 19, 2019
Grant date	Mar 24, 2020
Priority date	—
Expiry date	Feb 19, 2039

Classification

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

Abstract

A firestop collar (10) for sealing of openings, especially of line penetrations (12), that pass through walls (11) or ceilings, has a frame (16) and a block (20) of optionally intumescent material disposed therein, and is characterized in that the frame (16) is of modular construction.

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