Air duct connecting assembly

Details Air duct connecting assembly Air duct connecting assembly

1976-11-12

1978-07-11

Callaghan, Thomas F.

Pipe joints or couplings

Elbow

285 47, 285322, 285424, F16L 5914

Patent

active

040997472

ABSTRACT:
An air duct connecting assembly which consists of sleeve-like male and female connectors. The connectors, which are fabricated from a resilient sheet material, are manipulated from generally flat rectangular blanks into their sleeve-like configurations and are retained therein by the use of lock-tab and matching slot arrangements. One portion of each connector is adapted for insertion into the end of a tubular air duct section, two of which are to be connected, and each has means for mechanically joining the connector to the duct. The other portions of the connectors are adapted to be mated in male and female telescoped relationship. Means are provided on the mating portions of the male and female connectors for locking the connectors in their telescoped relationship.

REFERENCES:
patent: 672548 (1901-04-01), Durall
patent: 886043 (1908-04-01), Ditchburn
patent: 942256 (1909-12-01), Hague
patent: 1005656 (1911-10-01), Sanders
patent: 1032078 (1912-07-01), Osborn
patent: 1148041 (1915-07-01), Minkler
patent: 1315904 (1919-09-01), Bever
patent: 2220480 (1940-11-01), Forsberg
patent: 2434219 (1948-01-01), Morrison
patent: 3394950 (1968-07-01), Jensen

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