Static structures (e.g. – buildings) – Flue connection to building structure
Patent
1995-09-28
1997-07-15
Arola, Dave W.
Static structures (e.g., buildings)
Flue connection to building structure
285 43, E04D 1314
Patent
active
056471785
ABSTRACT:
A through-roof fitting seals a stack with a boot and seals the boot with a gasket around an opening in a sheet roofing created to receive the stack or pipe. An elliptical opening is cut in the roofing sheet. A base plate is placed below the sheet with a central raised portion of the plate extending through the opening cut in the roofing sheet. A flange on the base plate extends outwardly beneath the roofing sheet around the opening. A clamping plate is embedded in a combined boot and gasket so that the gasket extends over the roofing sheet around the opening when an elliptical step in the clamping plate is aligned with the projecting central portion of the base plate. The boot has successively inwardly stepped elliptical portions which terminate in a sloped top with a central opening for receiving and tightly engaging and sealing the pipe or stack. The embedded clamping plate has fastener openings which align with fastener receivers in the base plate. Bosses surrounding the openings extend through the boot to abut heads of elongated fastener bolts which thread into nuts which are pressfit into the fastener receivers in the flange plate. Tightening the fasteners compresses the gasket, sealing the opening in the roofing sheet.
REFERENCES:
patent: 1174763 (1916-03-01), Redlon
patent: 1931066 (1933-10-01), Eckert
patent: 3520245 (1970-07-01), Painter
patent: 4223486 (1980-09-01), Kelly
patent: 4524262 (1985-06-01), Meyer
patent: 4593504 (1986-06-01), Bonnici et al.
patent: 4757654 (1988-07-01), Korhonen et al.
patent: 5237789 (1993-08-01), Thaler
patent: 5472241 (1995-12-01), Kosik
Arola Dave W.
Cline Roger M.
Creighton Wray James
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