Hose assembly and method of making the same

Details Hose assembly and method of making the same Hose assembly and method of making the same

B - Operations, Transporting

65

B

26/155, 189/28

B65B 57/14 (2006.01) B67D 7/04 (2010.01) B67D 7/06 (2010.01) B65B 3/18 (2006.01)

Patent

CA 1297806

ABSTRACT OF THE DISCLOSURE A hose assembly and method of making the same are provided herein. The hose assembly has a first fluid passage therein for conveying a volatile liquid in one direction to a container, and a second fluid passage therein for returning the vapours of the volatile liquid from the container. The assembly comprises a flexible inner hose having an outer peripheral surface and defining the first fluid passage therein, and a flexible outer hose having an inner peripheral surface and being disposed around the inner hose, the inner peripheral surface of the outer hose and the outer peripheral surface of the inner hose defining the second fluid passage therebetween. The inner hose has a Venturi means therein that tends to remove liquid from a certain area of the second fluid passage, the Venturi means having an inlet opening that is generally flat and generally faces the inner peripheral surface so as to be adapted to interconnect the second fluid passage with the first fluid passage through the Venturi means. In the improved configuration the outer hose is cor- rugated in a helical manner so that the inner peripheral surface thereof defines alternating crests and valleys, with each crest and each valley defining an arcuate surface. The arcuate valleys and crests are of such a size that they will not completely block the inlet opening when the inlet opening is engaging the inner surface of the outer hose.

548061

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