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Title: Duct joining system

Patent ·
OSTI ID:873948

A duct joining system for providing an air-tight seal and mechanical connection for ducts and fittings is disclosed. The duct joining system includes a flexible gasket affixed to a male end of a duct or fitting. The flexible gasket is affixed at an angle relative to normal of the male end of the duct. The female end of the other duct includes a raised bead in which the flexible gasket is seated when the ducts are properly joined. The angled flexible gasket seated in the raised bead forms an air-tight seal as well as fastens or locks the male end to the female end. Alternatively, when a flexible duct is used, a band clamp with a raised bead is clamped over the female end of the flexible duct and over the male end of a fitting to provide an air tight seal and fastened connection.

Research Organization:
Lawrence Berkeley National Laboratory (LBNL), Berkeley, CA (United States)
DOE Contract Number:
AC03-76SF00098
Assignee:
Proctor, John P. (Boulder, CO)
Patent Number(s):
US 6279967
OSTI ID:
873948
Country of Publication:
United States
Language:
English