Patent ID: 8177083

Claim:
A threadless cap for closing a liquid bottle, the liquid bottle having a neck with an upper edge defining a discharge opening, said threadless cap comprising: a) a lid for overlying the upper edge, said lid including: i) a surface for facing the upper edge; and ii) a first projection extending from said surface toward the upper edge; b) a skirt depending from said lid; and c) a nonintegral seal member distinct from the other components of the threadless cap and mounted to said surface for establishing a sealing engagement with the upper edge, said seal member including an arcuate bead of resilient material located on said surface in a position to register with at least a portion of the upper edge, said projection engaging and extending along said arcuate bead of resilient material wherein said lid includes a circumferential shoulder portion for engaging the neck of the liquid bottle, said circumferential shoulder portion including a second projection extending along and engaging said arcuate bead of resilient material, said first and second projections define a channel in which is located said arcuate bead of resilient material, wherein said lid includes a plurality of protuberances in said channel, said protuberances being adjacent to each other within said channel when viewed in a cross-section and engaging said seal member to aid in retaining said arcuate bead of resilient material in said channel when the threadless cap is detached from the liquid bottle, and wherein the portion of the surface forming the channel has a relatively horizontal portion from which the first projection extends and a relatively vertical portion from which the second projection extends, and at least one of the protuberances extends inwardly from the relatively vertical portion of the surface at a location above an end of the second projection.