Circular duct and apparatus and method of fabrication

Details Circular duct and apparatus and method of fabrication Circular duct and apparatus and method of fabrication

1992-10-08

1995-06-06

Jones, W. Gary

Adhesive bonding and miscellaneous chemical manufacture

Methods

Surface bonding and/or assembly therefor

156218, 156257, 1563045, 83875, 493295, B29C 5300

Patent

active

054219388

ABSTRACT:
A round duct and apparatus and method of forming the duct in which the side edges of the duct are formed to interlock when the duct is folded and the flap is secured in place to provide support when the finishing duct tape is applied to seal the flap and complete the joint.

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patent: 4411183 (1983-10-01), Auer
patent: 4608902 (1986-09-01), Ivey
patent: 4951539 (1990-08-01), Buckner
patent: 5134917 (1992-08-01), Holland

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