Static structures (e.g. – buildings) – Irreversibly reactive component
Patent
1988-01-29
1988-11-22
Ridgill, Jr., James L.
Static structures (e.g., buildings)
Irreversibly reactive component
52484, 52573, 52729, 52DIG5, E04C 252, E04C 242, E04B 552
Patent
active
047855959
ABSTRACT:
An expansion joint or fire break for a main runner which has a web portion interconnecting a bead having a rectangular cross section with a pair of outwardly extending flanges characterized by an aperture in the web portion, a portion of the bead above the web portion being deformed to provide a modified bead having a flattened portion of reduced width connected to an upper sub-bead portion of a greater width, three notches extending transversely through the upper sub-bead and the aperture having an arrangement including shear lines and cuts to define bending lines or regions for the web that extend through the notches of the sub-bead and to define three bending lines or areas for the flanges, which are aligned with the bending lines in the web. When the runner is subjected to elevated temperatures, the compressive forces formed by thermal expansion will be relieved by the modified bead and web buckling laterally outward with bending in the three bend regions as the flanges buckle downward with bending in three bend areas.
REFERENCES:
patent: 3159252 (1964-12-01), Cotts
patent: 3175655 (1965-03-01), Brown et al.
patent: 3284977 (1966-11-01), Lickliter et al.
patent: 3350125 (1967-10-01), Adams
patent: 3388519 (1968-06-01), Downing, Jr.
patent: 3397501 (1968-08-01), Jahn
patent: 3457688 (1969-07-01), Znamirowske et al.
patent: 3496690 (1970-02-01), Jahn
patent: 3589089 (1971-06-01), Kedel
patent: 3778947 (1973-12-01), Sauer
patent: 3807111 (1974-04-01), Brady
patent: 3846031 (1974-11-01), Adams
patent: 3890760 (1975-06-01), Jones
patent: 3965631 (1976-06-01), Sauer
patent: 3965632 (1976-06-01), Rousey
patent: 4016701 (1977-04-01), Beynon
patent: 4128978 (1978-12-01), Beynon
patent: 4208851 (1980-06-01), Sauer
patent: 4598514 (1986-07-01), Shirey
patent: 4601153 (1986-07-01), Dunn et al.
patent: 4606166 (1986-08-01), Platt et al.
patent: 4685262 (1987-08-01), Meredith, Jr.
Chicago Metallic Corporation sale brochure, Designer Ceiling Systems, 09120/CHI published in Sweet's Catalog, Feb. 1987.
Chicago Metallic Corporation
Ridgill, Jr. James L.
LandOfFree
Fire-rated main runner does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Fire-rated main runner, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Fire-rated main runner will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-427884