Preform with valve anti-removal feature

A preform suitable for blow molding into an outer container usable for a pressurized aerosol dispenser, said preform having an interior, an exterior, a longitudinal axis and comprising:

• a closed end bottom;
• an open neck longitudinally opposed thereto, said open neck having a periphery and interior threads for accepting a valve having complementary exterior threads;
• and
• at least one pawl or ratchet exteriorly operatively juxtaposed with said periphery of said neck, said at least one pawl or ratchet allowing onward rotation of said valve in an onward direction, and preventing detachment of said valve therefrom in a reverse rotation direction,
• wherein said at least one pawl or ratchet comprises plural pawls or ratchets circumscribing said periphery of said neck and extending upwardly, generally parallel to said longitudinal axis,
• wherein said at least one pawl or ratchet is disposed above at least a portion of said neck interior threads;
• a seal positioned between said closed end bottom and said neck interior threads.

A preform suitable for blow molding into an outer container usable for a pressurized aerosol dispenser, said preform having an interior, an exterior, a longitudinal axis and comprising:

• an open top;
• a closed end bottom;
• an open neck longitudinally opposed thereto, said open neck having a periphery and interior threads for accepting a valve having complementary exterior threads;
• and
• at least one pawl or ratchet operatively peripherally juxtaposed with said open top of said preform, said at least one pawl or ratchet allowing onward rotation of said valve in an onward direction, and preventing detachment of said valve therefrom in a reverse rotation direction,
• wherein said at least one pawl or ratchet comprises plural pawls or ratchets circumscribing said periphery of said neck and extending upwardly, generally parallel to said longitudinal axis,
• wherein said at least one pawl or ratchet is disposed above at least a portion of said neck interior threads;
• a seal disposed on said interior of said neck.