A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
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 block (20) is a regular polyhedron.
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 block (20) is a regular polyhedron.
FIRESTOP COLLAR
MUENZENBERGER HERBERT (author)
2018-02-01
Patent
Electronic Resource
English