Liquid sampling apparatus

A liquid sampling apparatus for use in a well pipe having a removable cap comprising:

• (a) an elongated hollow housing means for insertion into said well pipe, the internal diameter of said well pipe being larger than the outer diameter of said hollow housing means, said housing means being provided with a retaining means for retaining one end of a flexible line therein;
• and
• (b) valve means having an outside diameter smaller than the inside diameter of said hollow housing means and adapted to be received therein and including;
• (i) a hollow valve means housing having an open end and a closed end, said closed end being provided with an aperture leaving an internally extending ledge portion circumscribing the internal circumference of said valve means housing,
• (ii) cup-shaped closure means disposed within said valve means housing, said closure means having an opening greater than said aperture and being centrally disposed thereover for cooperation therewith,
• (iii) restraining means disposed remote from said valve means open end for preventing said cup-shaped closure means from rising in said hollow housing when liquid enters said valve means aperture, said restraining means preventing said cup-shaped closure means from being inverted so that said closure opening is unable to cooperate with said valve means aperture, and
• (iiii) O-ring means disposed about the circumference of said valve means, said valve means being retained in said hollow housing means by the frictional and pressure forces exerted by said O-ring on said valve means and said housing means when said valve means is inserted therein.