Drink-through slosh-inhibiting closure lids for potable open-top

Abstract

A closure lid for capping the open top of a container. The container is of a type adapted to receive a potable liquid, usually one which is dispensed within a relatively close distance of the point at which it will be imbibed. Such containers with the closure lids emplaced thereon are used for 'carry-out' services, as from a luncheonette, or for 'carry-about' services, as from an on-the-premises beverage source such as a coffee brewer, a milk container, a carbonated or non-carbonated liquid vessel or a supply of hot water for tea or chocolate. It is customary to cap such containers with closure lids for carry-out purposes and to remove the lids when the potable is to be consumed; indeed it is quite usual to supply lids with the containers -- although not attached -- when the containers are sold to carry-out stores and to on-the-premises facilities where there are a large number of persons. The present invention provides a unique closure lid which when once in place is not intended to be removed but which is of such construction that a person can drink a potable through it from the capped container without experiencing any inconvenience and is such that it will minimize, and, indeed, almost eliminate, accidental spilling of the potable that heretofore has occurred when an uncapped container is jogged, shaken, or moved unevenly so as to cause spillage of its contents when a slosh wave overrides the rim of the container.