Masonry lead-in fixture

Details Masonry lead-in fixture Masonry lead-in fixture

1999-02-16

2000-12-19

Browne, Lynne H.

Pipe joints or couplings

Frangible element

285 4, F16L 3500, F16L 3700

Patent

active

06161873&

ABSTRACT:
A masonry lead-in fixture having a housing (2; 102) including an axially extending through bore (10; 110), a radially protruding attachment flange (4; 104) provided at least at one end of the housing (2; 102), and a mass (11; 111) intumescible in case of a fire, with the mass (11, 111) limiting the bore (10; 110) at least regionwise and closing the bore (10; 110) upon being intumesced, and a substantially disc-shaped partition (12; 112) located in the housing (2; 102) and which elastically and springy extends over an entire inner diameter of the bore (10, 110) and has a predetermined breaking area which is broken through upon pipe cable or the like being pushed therethrough.

REFERENCES:
patent: 4109423 (1978-08-01), Perrain
patent: 4894966 (1990-01-01), Bailey et al.
patent: 5452551 (1995-09-01), Charland et al.
patent: 5456050 (1995-10-01), Ward
patent: 5548934 (1996-08-01), Israelson

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