Water purifying drink containers

摘要

Water purifying drink containers include a liquid container, a cap assembly removably coupled to the liquid container, and a purification assembly that emits ultraviolet (UV) light in the germicidal spectrum to purify a volume of drink liquid held in the liquid container. In some embodiments, the purification assembly includes a UV bulb positioned within a recess of the cap assembly facing the internal compartment of the liquid container. In some embodiments, the UV bulb further emits light in the visible spectrum and the drink container includes an indicator that becomes illuminated with visible light to indicate to a user when the UV bulb is emitting UV light.

主权项

1. A drink container, comprising:
a liquid container having a neck with an opening and having an internal compartment sized to hold a volume of drink liquid; a cap assembly removably coupled to the neck of the liquid container and adapted to restrict dispensing of drink liquid from the internal compartment of the liquid container through the opening, wherein the cap assembly includes a body, wherein the body includes a lower portion that defines a lower edge that is adjacent to the liquid container, and wherein the lower portion defines a recess facing the internal compartment of the liquid container when the cap assembly is coupled to the neck of the liquid container; and a purification assembly coupled to the body of the cap assembly, wherein the purification assembly includes an ultraviolet (UV) bulb positioned within the recess, wherein the UV bulb is adapted to selectively emit UV light in the germicidal spectrum for a selected period of time and at a selected power level, to thereby purify a volume of drink liquid held in the internal compartment of the liquid container, wherein the purification assembly comprises a controller adapted to vary the power output to the UV bulb to achieve the selected power level for emission of UV light, wherein the purification assembly is configured to detect a power level of a power source prior to initiating a purification cycle, and compare the power level with a minimum threshold to complete a purification cycle.