The Procter & Gamble Company
Aerosol dispenser with valve anti-removal feature

Abstract:

An aerosol container for an aerosol dispenser. The aerosol container has an outer container. The outer container has a closed end bottom and a longitudinally opposed threaded open neck. The open neck has one or more pawls or ratchets disposed near the neck. The pawls or ratchets allow a complementary valve to be threaded onto the neck. The valve has complementary ratchets or pawls. The ratchet and pawl combination co-acts to impede or even prevent reverse rotation and subsequent removal of the valve. The outer container may be made from a preform having the ratchets and/or pawls integrally molded as part of the injection molding process. A valve having a housing may have ratchets and or pawls integrally molded as part of the injection molding process.