Metering dispenser with child resistant, tightly sealing closure

Claim 1

A child resistant package comprising a container having a generally cylindrical finish defining a generally open and unobstructed mouth opening and provided with a plurality of radially outwardly extending locking lugs, a cup-like fitment carried within said container finish and having a flexible and resilient bottom wall spaced apart from said container mouth opening and a dispensing stem carried by said bottom wall generally coaxially within said bottle finish and extending toward said mouth opening, and a closure cap having a skirt for surrounding said container finish and provided with a plurality of inwardly directed lugs for latching engagement with said container lugs and a central stem for engaging said dispensing stem, said dispensing stem having at least one dispensing orifice adjacent its distal end and said central stem being provided at its distal end with a closed end counterbore for receiving said dispensing stem distal end therewithin and a sealing flange extending generally annularly within said counterbore around said dispensing stem slidably sealingly engaging said dispensing stem generally annularly therearound and proximally of said dispensing orifice, said counterbore terminating at a generally annular shoulder, wherein engagement of said shoulder with the distal end of said dispensing stem depresses said stem and flexes said cup bottom wall to bias said closure cap outwardly of said container mouth and thereby lock said container and cap lugs against inadvertent disengagement and require that a child resistant push and turn motion be applied to open the package.