Patent ID: 8109236

Claim:
A fluid dispensing cap comprising: a securing portion, having an interior, constructed to attach the cap to a fluid source having a neck portion for attaching to the securing portion of the cap and a pierceable region; an applicator tube portion joined to the securing portion, the tube portion having a piercing tip at its proximal end and a dispensing tip at its distal end, and a hollow channel extending from the piercing tip to the dispensing tip, the cap having an axis; the proximal surface of the piercing tip defining at least one flat plane, the plane at a non-perpendicular angle to the axis, the most proximal end of the plane defining a piercing edge, adapted so that the piercing edge reaches the pierceable region before the remainder of the piercing tip as the piercing tip moves in a proximal direction, so that the portion of the piercing tip that pierces the pierceable region increases in size as the piercing tip is urged into the pierceable region; and at least two inwardly projecting tabs, adapted to engage corresponding structures on the neck portion to selectively maintain said piercing tip in a position away from the pierceable region of the fluid source in at least one inactive configuration and to advance the piercing tip into at least one active configuration where said piercing tip is positioned in fluid communication with the fluid source with the piercing tip through a pierceable region of a fluid source by the selective application of physical force to bring the piercing tip in the proximal direction towards the fluid source; wherein said tabs are formed in short segments on the interior of the securing portion, each segment at a non-perpendicular angle to the axis and positioned approximately the same distance from the proximal end of the securing portion.