Apparatus and process for dispensing a measured quantity of liquid

An apparatus comprising:

• a pour chamber comprising an inlet end and an outlet end and a pour chamber wall extending from said inlet end to said outlet end, wherein said pour chamber has an open cross sectional area through which flow can occur from said inlet end to said outlet end, wherein said open cross sectional area is a function of position between said inlet end and said outlet end, said outlet end being downstream of said inlet end, wherein said outlet end has an outlet perimeter, and wherein a portion of said pour chamber upstream of said outlet end is a spout having a spout entrance upstream of said outlet end;
• a dam engaged with said pour chamber wall and positioned between said inlet end and said spout, wherein said open cross sectional area is reduced where said dam is positioned as compared to a position immediately upstream of said dam, and wherein said dam partially obstructs said spout entrance;
• a vent comprising an entrance spaced apart from said outlet end and a vent wall extending from said entrance to an exit, wherein said exit is in fluid communication with said pour chamber, wherein said exit is more distant from said dam than said outlet end is from said dam, wherein said exit is more than about 0.5 times said outlet perimeter away from said dam, and wherein said exit has an exit perimeter and said outlet perimeter is more than about 2 times greater than said exit perimeter;
• and
• a timer engaged with said pour chamber, said timer comprising:
• a source reservoir;
• a collection reservoir having an interior space and an exterior surface, wherein at least a portion of said interior space is visible from said exterior surface;
• a timing orifice connecting said source reservoir and said collection reservoir;
• an opening connecting said collection reservoir and said source reservoir positioned away from said timing orifice;
• and
• a timing liquid having a fixed volume contained in one or both of said source reservoir and said collection reservoir, wherein said timing liquid, said source reservoir, and said collection reservoir are not in fluid communication with said pour chamber.