Ring seal collar for air ducts

Pipe joints or couplings – Connector for conduit housing electromagnetic line: – Having box and connector

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Details

285331, 285424, 285915, 285906, F16L 304

Patent

active

049308157

ABSTRACT:
Ring collar for use in connecting a side branch line to a main header air duct, the ring collar having a tubular sheet metal body with an inlet, an outlet end which is tapered for easy insertion into a tubular member, and a U-shaped channel ring around the body with the open side of the channel facing the outlet end of the body; and a process for connecting the ring collar to the main header.

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Crown Products Company, Inc. Brochure--Double-Sided--on Sale, Jan. 1980.

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