Duct jointing system

Details Duct jointing system Duct jointing system

1981-09-04

1984-05-08

Callaghan, Thomas F.

Pipe joints or couplings

Packed

Flanged pipe

285424, F16L 2300

Patent

active

044470797

ABSTRACT:
A duct jointing system has frame members each with a channel portion for engaging an end of a respective duct wall and an outwardly projecting portion. L-shaped connectors engage in openings in the outwardly projecting portions for securing the frame members together as frames and adjacent frames are connected by cleats engaging projections on the outwardly projecting portions and reinforcing flanges on the connectors, the flanges being cut-away to allow the cleats to be driven longitudinally into position.

REFERENCES:
patent: 3199901 (1965-08-01), Jeppsson
patent: 3201725 (1965-08-01), Johnson
patent: 3214201 (1965-10-01), Fonda
patent: 3301578 (1967-01-01), Platt et al.
patent: 3712650 (1973-01-01), Mez
patent: 3923326 (1975-12-01), Mez
patent: 4123094 (1978-10-01), Smitka
patent: 4218079 (1980-08-01), Arnoldt
patent: 4244609 (1981-01-01), Smitka
patent: 4252350 (1981-02-01), Smitka
patent: 4288115 (1981-09-01), Sullivan

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