Method of connecting flexible tubular duct and a connector

Details Method of connecting flexible tubular duct and a connector Method of connecting flexible tubular duct and a connector

1981-07-29

1983-09-20

Moon, Charlie T.

Metal working

Method of mechanical manufacture

Assembling or joining

29526R, 285239, B23P 1100

Patent

active

044047266

ABSTRACT:
Apparatus for connecting flex duct to a sheet metal collar wherein piercing members are connected to the sheet metal collar. The piercing members are located adjacent one end of the sheet metal collar with the end of the piercing member next adjacent the end of the collar connected to the collar. The piercing members have an apical end that is oppositely disposed from the end connected to the sheet metal collar such that, when the flex duct is forced over the piercing member and then drawn in the opposite direction, the apical end pierces the scrim of the flex duct and the piercing member entraps the wire helix to secure the collar to the flex duct.

REFERENCES:
patent: 567962 (1896-09-01), Cooper
patent: 589216 (1897-08-01), McKee
patent: 2864378 (1958-12-01), Schneller et al.
patent: 3221746 (1965-12-01), Noble
patent: 3233923 (1966-02-01), Raider et al.

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