Clamp for flexible duct

Details Clamp for flexible duct Clamp for flexible duct

1975-06-16

1977-03-08

Schroeder, Werner H.

Buckles, buttons, clasps, etc.

Trouser guards, clips, straps

285260, A44B 2100

Patent

active

040105180

ABSTRACT:
A clamp assembly for flexible duct of a type having a helically wound strip and a form-sustaining helically wound reinforcing member secured between lapping adjacent wraps of the strip. For reducing an end convolution of the duct, a one-piece spring wire clamp is provided having an operating arm and a lever arm connected in offset angular relation, opposite ends of the operating arm being mounted at opposite ends of an end convolution of the reinforcing member of the duct. The lever arm is movable into a closed clamped position engaging the end of the duct for effecting movement of the operating arm to contract the end convolution of the duct.

REFERENCES:
patent: 475589 (1892-05-01), Mills
patent: 2046589 (1936-07-01), Stader
patent: 2234656 (1941-03-01), Schmalz

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