E - Fixed Constructions – 04 – B
Patent
E - Fixed Constructions
04
B
20/61
E04B 1/68 (2006.01) E04B 1/54 (1980.01)
Patent
CA 1125986
FIRE RETARDING JOINT TREATMENT ABSTRACT OF THE DISCLOSURE A wallboard joint concealing structure with paper joint tape held in place by not only the usual bed coat of a setting type joint compound, but also by mechanical fasteners such as staples, which, in fire tests, remains in place about four times as long as prior joint concealing treatments, improving markedly the fire retarding rating of the wall.
344878
Corica Michael J.
Mapes Carl R.
Pearson Robert J.
National Gypsum Company
Osler Hoskin & Harcourt Llp
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