F - Mech Eng,Light,Heat,Weapons – 16 – L
Patent
F - Mech Eng,Light,Heat,Weapons
16
L
189/59
F16L 23/00 (2006.01) F16L 23/14 (2006.01)
Patent
CA 1308369
ABSTRACT A corner bracket 20, 120 forming part of a system of corner brackets adapted for mechanically inter-connecting in an air tight manner generally rectangular duct portions 37, 38. A first bracket 12 on the end of a first duct 37 is placed in adjacent, abutting, back to back relationship with a second bracket 6 on a second duct 38 and similarly at all four corners of the duct ends. Tabs 27, 127 which are formed from the corner bracket 20, 120 are located so as to be foldable over the adjacent, back to back brackets so as to mechanically bind the brackets together. The folding operation can be performed with hand tools such as hammers and the like. Using appropriate seals an air tight, mechanically sound duct join is accomplished. The brackets and the bracket inter-connection system are particularly suited for use with air conditioning duct networks. HRF/61zz
607557
Bullock Mfg. Pty. Limited
Jackson Roy J.
Smart & Biggar
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