Pressure activated diaphragm valve with angled slit

Details Pressure activated diaphragm valve with angled slit Pressure activated diaphragm valve with angled slit

A - Human Necessities

61

M

A61M 25/00 (2006.01) A61M 39/24 (2006.01) F16K 7/17 (2006.01) F16K 15/14 (2006.01)

Patent

CA 2699377

A pressure actuated valve comprises a first membrane (110) having a slit (112) extending through the membrane at a nonzero draft angle (0) relative to a perpendicular to a surface of the membrane, material of the membrane biasing the slit closed so that the slit remains closed when a fluid pressure applied to the membrane is below a threshold level and, when the fluid pressure is at least the threshold level, edges of the slit separate from one another to permit fluid flow through the membrane.

L'invention porte sur une soupape actionnée par pression qui comporte une première membrane (110) ayant une fente (112) s'étendant à travers la membrane à un angle de dépouille non nul (0) par rapport à une perpendiculaire à la surface de la membrane, le matériau de la membrane sollicitant la fente vers sa position de fermeture de telle sorte que la fente reste fermée lorsque une pression de fluide appliquée à la membrane est en dessous d'un niveau de seuil et, lorsque la pression du fluide est au moins au niveau de seuil, les bords de la fente se séparent l'un de l'autre pour permettre un écoulement de fluide à travers la membrane.

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