Abstract
A cast-in pass-through firestop device has a hollow tubular body, a bayonet mechanism for adjusting a height, a sealing ring engaged with the bayonet mechanism, and an inlay made of intumescent firestop material arranged within the hollow tubular body.
Full Text
What is claimed is:
A cast-in pass-through firestop device has a hollow tubular body, a bayonet mechanism for adjusting a height, a sealing ring engaged with the bayonet mechanism, and an inlay made of intumescent firestop material arranged within the hollow tubular body.
Timeline
Filed
06/03/2026Published
09/24/2026Granted
Not AvailableIPC Codes(4)
F16L 5/04:to form a firebreak device
A62C 2/06:Physical fire-barriers
E04B 5/48:Special adaptations of floors for incorporating ducts, e.g. for heating or ventilating (in block-shaped elements E04C 1/39; in slab- or sheet-shaped elements E04C 2/52)