Pipes and tubular conduits – Longitudinally seamed – Sectional
Patent
1997-05-13
1999-12-07
Brinson, Patrick
Pipes and tubular conduits
Longitudinally seamed
Sectional
138157, 138162, 138177, 138DIG4, F16L 900
Patent
active
059966440
ABSTRACT:
A duct joint structure for assembling a duct used for air conditioning or venting equipment, an assembly tool for assembling the joint portion, an assembly method of a duct, and a hanger for the duct with the duct joint structure. A duct joint structure includes at least two duct plate members arranged substantially at right angles in a sectional view. An end of a first plate member is bent substantially in accordance with the orthogonal relation, and the second plate member is formed at the forward end thereof with a U-shaped groove to accommodate the bent portion of the first plate member. A guide rail is protruded at not less than 90 degrees with respect to the outer surface of the second plate member from the side thereof spaced from the U-shaped groove.
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Brinson Patrick
Jam Kabushiki Kaisha
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