An adapter is attached to a cover of a squeezable drink container for preventing a direct contact between a user's mouth and the container outlet. The adapter comprises a cup, an upper edge of which rests around the user's mouth during drinking. The cup has circumferentially spaced-apart side openings...http://www.google.es/patents/US5632407?utm_source=gb-gplus-sharePatente US5632407 - Adapter for a drink container
