Patent ID: 7048136
Filing Date: 2006-05-23
Classification: B65D

Abstract:
1. A canister lid, comprising: a cover member adapted to cover a canister, thereby defining an interior of the canister; a housing attached to an underside of said cover member, wherein a chamber is defined by an interior of said housing and said underside of said cover member; a first opening and a second opening in said cover member, which provide access into said chamber through said cover member; a third opening and a fourth opening in a bottom of said housing, which provide access from the interior of the canister into said chamber through said bottom of said housing; at least one satellite opening, in said bottom of said housing, near said fourth opening; an evacuation valve including a stem portion and a top portion having a flexible periphery that extends beyond said stem portion, said stem fitting into said fourth opening such that said flexible periphery covers each of said at least one satellite opening; and a vacuum release valve including a head that extends above said first opening, a base that extends below said third opening, and an elongated stem that extends between said head and said base, said head including a flexible downwardly angled periphery that extends beyond said first opening, thereby keeping said head above said first opening, said base having a periphery that extends beyond said third opening; wherein said flexible downwardly angled periphery of said head of said vacuum release valve provides sufficient biasing so that said periphery of said base is predisposed upward against a circumference of said third opening, thereby sealing said third opening; wherein a rounded rib resides on a terminal end of said flexible downwardly angled periphery such that said rounded rib acts as a fulcrum to assist in bending of said flexible downwardly angled periphery.