Trim-to-length duct

Details Trim-to-length duct Trim-to-length duct

1986-08-22

1987-05-26

Thomas, Alexander S.

Pipes and tubular conduits

Longitudinally seamed

Sectional

138166, 138168, 428 58, 428100, 428 36, F16L 900

Patent

active

046677020

ABSTRACT:
A two-piece plastic duct utilizing snap-together latch tongue and complementary engaging provisions together with overlapping sealing flanges to make adequately airtight duct assemblies. The duct walls consist of narrow trimming flats with measurement indicia; these flats are divided by narrower molded separators, which make it easy to trim the unassembled duct to desired length.

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