# US 11,027,303 B2 · System and method for dispensing fluid in response to a sensed property > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 11,027,303 B2 - Document ID: US11027303B2 - Status: Granted - Kind: B2 - Application number: 15/620,220 - Filed: 2017-06-12 - Published: 2018-04-05 - Granted: 2021-06-08 - Earliest claimed: 2004-12-01 - Assignees: Sensory Design & Technology Ltd - Applicants: Sensory Design & Technology Ltd. - Inventors: Jenny Tillotson; Gareth Jenkins - Web page: https://patentgrep.com/patent/US11027303B2 ## CPC - B05B 12/122: {responsive to presence or shape of target (B05B12/124 takes precedence)} - A01M 1/026: {combined with devices for monitoring insect presence, e.g. termites (bait stations A01M1/2005; detecting other animals in a given area A01M31/002)} - A01M 1/2038: {Holders or dispensers for pressurized insecticide, e.g. pressurized vessels, cans} - B05B 17/0607: {generated by electrical means, e.g. piezoelectric transducers} - 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) - A01M: CATCHING, TRAPPING OR SCARING OF ANIMALS (appliances for catching swarms or drone-catching A01K57/00; fishing A01K69/00 - {A01K99/00}; biocides, pest repellants or attractants A01N); APPARATUS FOR THE DESTRUCTION OF NOXIOUS ANIMALS OR NOXIOUS PLANTS ## Abstract A system for dispensing fluid in response to a sensed property such as an ambient sound comprises a sensor for detecting one or more properties, a processing stage for determining if the one or more sensed properties is/are within a predetermined range and/or above and/or below a predetermined level and dispenser for dispensing a fluid into an area surrounding the system if the one or more sensed properties is/are determined by the processing stage to be within a predetermined range and/or above and/or below a predetermined level and/or value. ## Claims ### Claim 1 A wearable device for dispensing fluid in response to one or more sensed sounds, comprising: a sensor for sensing one or more sounds; a processor for determining when the one or more sensed sounds is/are within a predetermined range, above a predetermined level or below a predetermined level; and a dispenser for dispensing a fluid into an area surrounding the device when the one or more sensed sounds is/are determined by the processor to be within the predetermined range, above the predetermined level, or below the predetermined level; wherein the dispenser comprises a capillary tube containing the fluid and a piezo-electric or thermally-actuated device, which is actuated to eject fluid from the capillary tube. ### Claim 2 (depends on 1) The device according to claim 1, wherein the sensor comprises a microphone. ### Claim 3 (depends on 1) The device according to claim 1, wherein the processor is arranged to determine a frequency or frequencies or an amplitude of the one or more sounds. ### Claim 4 (depends on 1) The device according to claim 1, wherein the processor is arranged to determine a source of the one or more sounds. ### Claim 5 (depends on 1) The device according to claim 1, wherein the processor comprises one or more filters. ### Claim 6 (depends on 5) The device according to claim 5, wherein the one or more filters comprise one or more band-pass filters. ### Claim 7 (depends on 5) The device according to claim 5, wherein the processor further comprises an amplifier connected between the sensor and the one or more filters. ### Claim 8 (depends on 1) The device according to claim 1, wherein the sensor has an output, the processor further comprises an amplifier connected to the output of the sensor and having an output, and an analogue-to-digital converter connected to the output of the amplifier. ### Claim 9 (depends on 8) The device according to claim 8, wherein the analogue-to-digital converter has an output signal, and the output signal is transmitted to the processor using a wireless link. ### Claim 10 (depends on 9) The device according to claim 9, wherein the processor includes audio analysis software for determining when the one or more sensed sounds is/are within the predetermined range, above the predetermined level, or below the predetermined level. ### Claim 11 (depends on 1) The device according to claim 1, wherein the device is an item of jewelry. ### Claim 12 (depends on 1) The device according to claim 1, wherein the device is incorporated in a fabric. ### Claim 13 (depends on 1) The device according to claim 1, wherein the fluid to be dispensed comprises an insect repellent. ### Claim 14 (depends on 1) The device according to claim 1, wherein the fluid to be dispensed comprises a scent. ### Claim 15 (depends on 1) The device according to claim 1, wherein the dispenser comprises the thermally-actuated device, which comprises a wire within the capillary tube and the wire is arranged to receive one or more pulses of current to vaporize the fluid in the capillary tube surrounding the wire, causing one or more droplets of the fluid to form and be ejected. ### Claim 16 A device for dispensing fluid in response to one or more sensed sounds, comprising: a sensor for sensing one or more sounds, wherein the sensor has an output; an amplifier connected to the output of the sensor and having an output; an analogue-to-digital converter connected to the output of the amplifier; a processor for determining when the one or more sensed sounds is/are within a predetermined range, above a predetermined level or below a predetermined level; and a dispenser for dispensing a fluid into an area surrounding the device when the one or more sensed sounds is/are determined by the processor to be within the predetermined range, above the predetermined level or below the predetermined level; wherein the analogue-to-digital converter has an output signal which is transmitted to the processor using a wireless link, and the processor has an output signal which drives the dispenser and is transmitted to the dispenser using the wireless link.