Patent ID: 8443824

Claim:
A fluid flow controller comprising: a unitary housing having a longitudinal axis and an axial length with a first end and a second end, said housing including first and second finger-gripping portions integral with a central portion disposed between said finger-gripping portions, said finger-gripping and central portions defined by a continuous, integrally molded housing wall; wherein each of said finger-gripping portions and said central portion define an outermost surface, and wherein said outermost surface of said housing finger-gripping portions extends radially outwardly of the outermost surface of said central portion, said housing further defining an interior flow path and including a breakable member at least partially positioned within said flow path of the housing to prevent the passage of fluid through the flow path; wherein said housing wall at said central portion has a selected thickness and said housing wall at each of said finger-gripping portions has a wall thickness that is greater than said wall thickness of said housing at said central portion; and wherein each of said finger-gripping portions extends entirely around the longitudinal axis of said housing and has a cross-section that is generally square-shaped with rounded corners and a concave finger-contacting surface when viewed in a plane that is perpendicular to said longitudinal axis.