Pipes and tubular conduits – Joined sections
Patent
1987-01-30
1988-08-23
Bryant, III, James E.
Pipes and tubular conduits
Joined sections
138109, 285363, 285368, 285424, F16L 900
Patent
active
047653752
ABSTRACT:
An improved duct is proposed which comprises a plurality of duct sections coupled together. Each duct section has a turned-up portion and a flange at one end and a flange at the other end. Both the turned-up portion and the flanges are formed by bending the edge of each duct section. The turned-up portion of one tubular body is inserted into the not-turned-up end of an adjacent tubular body. Bolt holes provided in each section are adapted to align with each other by themselves. Also, the inner edge the packing disposed between the flanges is covered up by the turned-up portion.
REFERENCES:
patent: 3805845 (1974-04-01), Santoro
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