# US 12,178,273 B2 · Personal cooling device > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 12,178,273 B2 - Document ID: US12178273B2 - Status: Granted - Kind: B2 - Application number: 17/063,685 - Filed: 2020-10-16 - Published: 2022-04-21 - Granted: 2024-12-31 - Earliest claimed: 2020-10-16 - Applicants: Bobby Coffman - Inventors: Bobby Coffman - Web page: https://patentgrep.com/patent/US12178273B2 ## CPC - A42B 1/008: with means for heating or cooling (ventilating arrangements for head coverings A42C5/04) - B05B 9/0861: {the motor being electric} - B05B 15/62: Arrangements for supporting spraying apparatus, e.g. suction cups - A42B: HATS; HEAD COVERINGS (headbands A41D20/00; head-scarves A41D23/00) - B05B: SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES (spray-mixers with nozzles B01F25/72; processes for applying liquids or other fluent materials to surfaces by spraying B05D) ## Abstract A method and apparatus comprising a headgear that has a channel conduit implemented therein, preferably on a brim of the headgear. The channel conduit is operatively connected to a liquid source via a conduit. The liquid source holds a liquid, such as water. A liquid pumping means in the liquid source pushes the liquid, under pressure, through the conduit, into the channel conduit. Tiny openings in the channel conduit expel the liquid in the form of minute droplets, which readily evaporate because of their tiny size. Their evaporation produces a cooling effect in an area around the channel conduit, such as around the facial area of a user wearing the apparatus. ## Claims ### Claim 1 A cooling device, comprising: a headgear configured to fit on a head of a user, said headgear comprising a brim and a channel implemented in said brim; a first conduit implemented in said channel, said first conduit comprising a plurality of openings at a bottom side of said brim, wherein said first conduit is implemented in a circular pattern extending around a periphery of a central portion of said headgear and said plurality of openings are equally distanced from said periphery of the central portion; and a liquid source operatively connected to said first conduit, said liquid source comprising: a cavity in said liquid source, said cavity able to hold a volume of liquid, and a pump for pumping said liquid in said cavity to said first conduit; wherein said plurality of openings are configured to expel said liquid as minute droplets of the liquid around a facial area of said user. ### Claim 2 (depends on 1) The cooling device of claim 1, wherein said pump is a mechanical pump physically operable to pump said liquid. ### Claim 3 (depends on 1) The cooling device of claim 1, further comprising a portable battery in electrical communication with said pump, wherein: said pump is an electric pump operable to pump said liquid; and said portable battery is operable to deliver electricity to said electric pump. ### Claim 4 (depends on 3) The cooling device of claim 3, wherein said electric pump comprises: a switch, said switch operable to turn said electric pump on or off; and a controller, said controller selectively operable to adjust a voltage or a current delivered to said electric pump by said portable battery. ### Claim 5 (depends on 1) The cooling device of claim 1, wherein the operative connection between said first conduit and said liquid source comprises a second conduit, wherein: said second conduit has a first end and a second end; said first end of said second conduit is operatively connected to said first conduit in a substantially watertight manner; and said second end of said second conduit is operatively connected to said liquid source in a substantially watertight manner. ### Claim 6 (depends on 5) The cooling device of claim 5, wherein said second end of said second conduit has access to said volume of liquid in said cavity. ### Claim 7 A method of personal cooling, comprising: accommodating a headgear on a head of a user, said headgear comprising a brim and a channel implemented in said brim; implementing a first conduit in said channel in a circular pattern extending around a periphery of a central portion of said headgear, said first conduit comprising a plurality of openings at a bottom side of said brim; operatively connecting a liquid source to said first conduit, said liquid source comprising: a cavity, said cavity operable to hold a volume of liquid, and a pump for pumping said liquid in said cavity; and expelling said liquid from said first conduit as minute droplets of said liquid, wherein said plurality of openings are equally distanced from said periphery of the central portion and said liquid is expelled through said openings around a facial area of said user. ### Claim 8 (depends on 7) The method of personal cooling of claim 7, wherein expelling said liquid comprises expelling the liquid under pressure through said plurality of openings in said first conduit. ### Claim 9 (depends on 7) The method of personal cooling of claim 7, wherein said pump is a mechanical pump physically operable by said user to pump said liquid. ### Claim 10 (depends on 7) The method of personal cooling of claim 7, wherein said pump is an electric pump operable with electricity to pump said liquid. ### Claim 11 (depends on 10) The method of personal cooling of claim 10, wherein said electric pump comprises: a switch, said switch operable to turn said electric pump on or off; and a controller, said controller selectively operable to adjust a voltage or a current delivered by a portable battery to said electric pump. ### Claim 12 (depends on 7) The method of personal cooling of claim 7, wherein operatively connecting said liquid source to said first conduit comprises: operatively connecting a first end of a second conduit to said first conduit in a substantially watertight manner, and operatively connecting a second end of said second conduit to said liquid source in a substantially watertight manner; wherein said second end of said second conduit has access to said volume of liquid in said cavity. ### Claim 13 A portable personal cooling device, comprising: a headgear, said headgear wearable on a head of a user; a brim on said headgear; a first conduit implemented in said brim in a circular pattern extending around a periphery of a central portion of said headgear; a second conduit having a first end and a second end, wherein the first end of said second conduit is operatively connected to said first conduit in a substantially watertight manner; a liquid source, wherein said liquid source is operatively connected to the second end of said second conduit in a substantially watertight manner; a cavity in said liquid source, wherein: said cavity is operable to hold and carry a liquid, and said second end of the second conduit has access to the liquid in said cavity; a pump in said liquid source, wherein said pump is operable to pump the liquid in said cavity under pressure through said second conduit to said first conduit; and said pump is either a mechanical pump or an electrical pump; and a plurality of openings defined in said first conduit and located at a bottom side of said brim, said plurality openings equally distanced from said periphery of the central portion, wherein said plurality of openings are configured to expel said liquid as minute droplets of the liquid around a facial area of said user.