Patent · US Active

Fire protection fastening device for fastening a door actuator

US11814888B2 · kind B2 · utility

4Cited by

6References

13Claims

0Family size

Assignee

DORMAKABA DEUTSCHLAND GMBH · DE

Inventors

Alexander Hellwig · Ennepetal, DE
Thomas Salutzki · Ennepetal, DE
Sabine Wiemann · Ennepetal, DE
Volker Bienek · Dortmund, DE

Key dates

Filing date	Jul 13, 2021
Grant date	Nov 14, 2023
Priority date	—
Expiry date	May 5, 2042

Classification

Technology area (CPC E)Fixed Constructions
CPC primaryE05Y2900/134
WIPO fieldCivil engineering
WIPO sectorOther fields

Abstract

A fire protection fastening device for fastening a door actuator, includes a frame with a back side, which is to be oriented to a mounting surface, in particular to a door, casing or wall, wherein a mounting axis is defined vertically to the back side. The frame is formed for arrangement between a door actuator and the mounting surface or is an integral component of the door actuator (102), at least one reaction chamber formed in the frame, wherein the frame delimits the reaction chamber on the entire circumference. The reaction chamber is open on the back side and/or on a front side of the frame opposite the back side. The device further includes a drive element made from thermally intumescent material disposed in the reaction chamber and, when activated, is formed for pushing away the door actuator from the mounting surface.

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