Ventilating system collar with lock means

Details Ventilating system collar with lock means Ventilating system collar with lock means

F - Mech Eng,Light,Heat,Weapons

23

J

98/16, 285/23

F23J 13/04 (2006.01) F16L 37/00 (2006.01)

Patent

CA 1132165

- 1 - ABSTRACT VENTILATING SYSTEM COLLAR WITH LOCK MEANS This invention relates to a ventilating system of the type comprising a duct for distributing heated or cooled air with distribution pipes attached to the duct. Each pipe is attached by means of a collar which has one side connected to the duct and the opposite side providing means for holding a pipe end. The collar includes integrally formed lock means which permit formation of the collar from a strip and joining of the strip ends to provide the desired collar configuration. The lock means include a projection on one end of the collar strip, the projection defining an outer edge and angularly, in- wardly extending side edges. This projection is receivable within a notch defined by the other end of the collar strip. The notch includes an inner edge and angularly and inwardly directed side edges with collar portions formed on opposite sides of the notch. The projection can be quickly inserted in the notch, and a secure relationship is achieved.

351699

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