# US 12,006,724 B2 · Spa tub cover and method of sterilizing water within spa tub > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 12,006,724 B2 - Document ID: US12006724B2 - Status: Granted - Kind: B2 - Application number: 18/486,209 - Filed: 2023-10-13 - Published: 2024-04-18 - Granted: 2024-06-11 - Earliest claimed: 2022-10-13 - Applicants: Zachary W. Russell; Jeffrey T. Russell - Inventors: Zachary W. Russell; Jeffrey T. Russell - Web page: https://patentgrep.com/patent/US12006724B2 ## CPC - E04H 4/08: Coverings consisting of rigid elements {, e.g. coverings composed of separate or connected elements} - C02F 1/325: {Irradiation devices or lamp constructions} - C02F 2103/42: from bathing facilities, e.g. swimming pools - E04H: BUILDINGS OR LIKE STRUCTURES FOR PARTICULAR PURPOSES; SWIMMING OR SPLASH BATHS OR POOLS; MASTS; FENCING; TENTS OR CANOPIES, IN GENERAL (foundations E02D) - C02F: TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE (separation in general B01D; special arrangements on waterborne vessels of installations for treating water, waste water or sewage, e.g. for producing fresh water, B63J; adding materials to water to prevent corrosion C23F; treating radioactively-contaminated liquids G21F9/04; regeneration of reactants for recirculation into processes, see the relevant places for the processes) ## Abstract Disclosed is a spa tub cover. The spa tub cover comprising one or more Ultraviolet (UV)-C lights integrated to an inner side of the spa tub cover such that the one or more Ultraviolet (UV)-C lights are arranged in an array configuration, and to be activated to disinfect water and/or surfaces within a spa tub; a hinge positioned between a first surface and a second surface of the spa tub cover to make the spa tub cover foldable; a switch mounted near the hinge of the spa tub cover, and to be operated for activating or deactivating the one or more Ultraviolet (UV)-C lights of the spa tub cover; and a power cord attached to the second surface of the spa tub cover for supplying power to the one or more Ultraviolet (UV)-C lights for sterilizing the water and/or within the spa tub. ## Claims ### Claim 1 A spa tub cover, comprising: one or more Ultraviolet (UV)-C lights secured to an inner side of the spa tub cover, the one or more Ultraviolet (UV)-C lights being arranged in an array and configured to disinfect water and/or surfaces within the spa tub; a hinge positioned between a first surface and a second surface of the spa tub cover to make the spa tub cover foldable; a switch mounted adjacent the hinge of the spa tub cover, and to be operated for activating or deactivating the one or more Ultraviolet (UV)-C lights; and a power cord attached to the second surface of the spa tub cover for supplying power to the one or more Ultraviolet (UV)-C lights configured to disinfect the water and/or surfaces within the spa tub. ### Claim 2 (depends on 1) The spa tub cover of claim 1, wherein the spa tub cover comprises Ultraviolet (UV)-C transmissible material to allow light rays to pass through the spa tub cover to disinfect the surfaces and/or water of the spa tub. ### Claim 3 (depends on 1) The spa tub cover of claim 1, wherein the one or more Ultraviolet (UV)-C lights are housed within one of, a watertight housing, a floating housing, or a submerged housing. ### Claim 4 (depends on 1) The spa tub cover of claim 1, comprising a timer enclosed within an enclosure, the timer enabling a user to set a time interval for automatically activating or deactivating the one or more Ultraviolet (UV)-C lights. ### Claim 5 (depends on 1) The spa tub cover of claim 1, wherein the one or more Ultraviolet (UV)-C lights are activated to emit light rays with wavelengths in a range of 200 Nanometers (nm) to 280 Nanometers (nm) to generate germicidal effects. ### Claim 6 (depends on 1) The spa tub cover of claim 1, comprising one or more fixation devices adapted to secure the one or more Ultraviolet (UV)-C lights to the inner side of the spa tub cover. ### Claim 7 (depends on 1) The spa tub cover of claim 1, comprising a relay enclosed within an enclosure, the relay configured to permit or discontinue a flow of an electrical energy to the one or more Ultraviolet (UV)-C lights. ### Claim 8 (depends on 7) The spa tub cover of claim 7, comprising a control unit enclosed with an enclosure to energize the relay for a time interval set by a user for activating the one or more Ultraviolet (UV)-C lights. ### Claim 9 (depends on 1) The spa tub cover of claim 1, wherein the one or more Ultraviolet (UV)-C lights are operable using one of, a line power or a battery power. ### Claim 10 A spa tub cover, comprising: one or more Ultraviolet (UV)-C lights secured to an inner side of the spa tub cover, the one or more Ultraviolet (UV)-C lights being arranged in an array and configured to disinfect water and/or surfaces within the spa tub; one or more fixation devices adapted to secure the one or more Ultraviolet (UV)-C lights to the inner side of the spa tub cover fitted over an opening of the spa tub; a hinge positioned between a first surface and a second surface of the spa tub cover to make the spa tub cover foldable; a switch mounted adjacent the hinge of the spa tub cover, and to be operated for activating or deactivating the one or more Ultraviolet (UV)-C lights; and a power cord attached to the second surface of the spa tub cover for supplying power to the one or more Ultraviolet (UV)-C lights configured to disinfect the water and/or surfaces within the spa tub. ### Claim 11 (depends on 10) The spa tub cover of claim 10, wherein the spa tub cover comprises Ultraviolet (UV)-C transmissible material to allow light rays to pass through the spa tub cover to disinfect surfaces and/or water of the spa tub. ### Claim 12 (depends on 10) The spa tub cover of claim 10, wherein the one or more Ultraviolet (UV)-C lights are housed within at least one of, a watertight housing, a floating housing, or a submerged housing. ### Claim 13 (depends on 10) The spa tub cover of claim 10, comprising a timer enclosed within an enclosure, the timer enabling a user to set a time interval for automatically activating or deactivating the one or more Ultraviolet (UV)-C lights. ### Claim 14 (depends on 10) The spa tub cover of claim 10, wherein the one or more Ultraviolet (UV)-C lights are activated to emit light rays with wavelengths in a range of 200 Nanometers (nm) to 280 Nanometers (nm) to generate germicidal effects. ### Claim 15 (depends on 10) The spa tub cover of claim 10, comprising a relay enclosed within an enclosure, the relay configured to permit or discontinue a flow of an electrical energy to the one or more Ultraviolet (UV)-C lights. ### Claim 16 (depends on 15) The spa tub cover of claim 15, comprising a control unit enclosed with an enclosure to energize the relay for a time interval set by a user for activating the one or more Ultraviolet (UV)-C lights. ### Claim 17 (depends on 10) The spa tub cover of claim 10, wherein the one or more Ultraviolet (UV)-C lights are operable using one of, a line power or a battery power. ### Claim 18 A method of sterilizing water and/or surfaces within a spa tub, comprising steps of: placing a spa tub cover over a spa tub and unfolding the spa tub cover to close an opening of the spa tub; actuating a switch to supply an electrical energy from a power supply unit to one or more Ultraviolet (UV)-C lights, thereby activating the one or more Ultraviolet (UV)-C lights, wherein the one or more Ultraviolet (UV)-C lights are configured to emit light rays with wavelengths in a range of 200 Nanometers (nm) to 280 Nanometers (nm) to disinfect the water and/or surfaces of the spa tub; actuating the switch to discontinue the supply of electrical energy from the power supply unit to the one or more Ultraviolet (UV)-C lights, thereby deactivating the Ultraviolet (UV)-C lights when disinfection of the spa tub is completed by the spa tub cover; and folding the spa tub cover by the user to provide access to the opening of the spa tub. ### Claim 19 (depends on 18) The method of claim 18, comprising a step of energizing a relay enclosed in an enclosure for enabling a flow of the electrical energy from the power supply unit to the one or more Ultraviolet (UV)-C lights. ### Claim 20 (depends on 18) The method of claim 18, comprising a step of supplying the electrical energy to the one or more Ultraviolet (UV)-C lights through a connecting wire.