# US 10,119,693 B2 · Wireless power for airfield lighting > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 10,119,693 B2 - Document ID: US10119693B2 - Status: Granted - Kind: B2 - Application number: 14/839,397 - Filed: 2015-08-28 - Published: 2016-03-03 - Granted: 2018-11-06 - Earliest claimed: 2014-08-29 - Assignees: Cooper Technologies Company - Applicants: Birger Pahl; Traver B Gumaer; John B Schneider - Inventors: Birger Pahl; Traver B Gumaer; John B Schneider - Web page: https://patentgrep.com/patent/US10119693B2 ## CPC - F21V 23/026: {Fastening of transformers or ballasts} - B64F 1/20: Arrangement of optical beacons - F21V 19/04: with provision for changing light source, e.g. turret {(auxiliary devices for cleaning, placing, or removing incandescent lamps H01K3/32, fluorescent lamps H01J9/006)} - F21V 23/001: {the elements being electrical wires or cables} - H01F 38/14: Inductive couplings - H05B 47/10: Controlling the light source - H05B 47/235: {with communication between the lamps and a central unit} - F21W 2111/06: for aircraft runways or the like - F21V: FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR - B64F: GROUND OR AIRCRAFT-CARRIER-DECK INSTALLATIONS SPECIALLY ADAPTED FOR USE IN CONNECTION WITH AIRCRAFT; DESIGNING, MANUFACTURING, ASSEMBLING, CLEANING, MAINTAINING OR REPAIRING AIRCRAFT, NOT OTHERWISE PROVIDED FOR; HANDLING, TRANSPORTING, TESTING OR INSPECTING AIRCRAFT COMPONENTS, NOT OTHERWISE PROVIDED FOR - H01F: MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES - H05B: ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL - F21W: INDEXING SCHEME ASSOCIATED WITH SUBCLASSES F21K, F21L, F21S and F21V, RELATING TO USES OR APPLICATIONS OF LIGHTING DEVICES OR SYSTEMS ## Abstract A wirelessly powered airfield lighting device includes a base can and a wireless power transmitter disposed in the base can. The wireless power transmitter can wirelessly transmit power. The lighting device further includes an isolation transformer disposed inside the base can. The isolation transformer is electrically coupled to and between the wireless power transmitter and a power source. The lighting device also includes a light fixture that includes a base disposed on and sealing the top end of the base can and that includes an electronics compartment. The light fixture further includes a wireless power receiver disposed in the electronics compartment and that wirelessly receives power from the wireless power transmitter. The light fixture also includes a light source that receives power from the wireless power receiver. ## Claims ### Claim 1 A wirelessly powered airfield lighting device, comprising: a base can; a wireless power transmitter disposed in the base can, the wireless power transmitter to wirelessly transmit power; a cover disposed inside the base can, wherein the cover houses the wireless power transmitter and protects the wireless power transmitter from exposure to water when the water is inside the base can; an isolation transformer disposed inside the base can, wherein the isolation transformer is electrically coupled to and between the wireless power transmitter and a power source; and a light fixture comprising: a base disposed on and sealing the top end of the base can, the base comprising an electronics compartment that is at least partially disposed in the base can; a wireless power receiver disposed in the electronics compartment and to wirelessly receive power from the wireless power transmitter; and a light source to receive power from the wireless power receiver. ### Claim 2 (depends on 1) The wirelessly powered airfield lighting device of claim 1, wherein the wireless power transmitter is disposed between the isolation transformer and the wireless power receiver. ### Claim 3 (depends on 1) The wirelessly powered airfield lighting device of claim 1, wherein the light source is disposed on top of the base and wherein the electronics compartment is disposed on the bottom of the base opposite the light source. ### Claim 4 (depends on 3) The wirelessly powered airfield lighting device of claim 3, wherein the electronics compartment is disposed within the base can. ### Claim 5 (depends on 1) The wirelessly powered airfield lighting device of claim 1, wherein the light source is disposed within the base. ### Claim 6 (depends on 1) The wirelessly powered airfield lighting device of claim 1, wherein the light fixture is detachable from the base can by decoupling the base from the base can. ### Claim 7 (depends on 6) The wirelessly powered airfield lighting device of claim 6, wherein the light fixture is detachable from the base can without removing the wireless power transmitter from inside the base can. ### Claim 8 (depends on 1) The wirelessly powered airfield lighting device of claim 1, wherein the isolation transformer is coupled to the power source using a cable and wherein the light fixture is detachable from the base can without decoupling the isolation transformer from the power source. ### Claim 9 A wirelessly powered airfield lighting device, comprising: a base can; a wireless power transmitter disposed in the base can, the wireless power transmitter to wirelessly transmit power; a cover disposed inside the base can, wherein the cover houses the wireless power transmitter and protects the wireless power transmitter from exposure to water when the water is inside the base can; an isolation transformer disposed outside the base can, wherein the isolation transformer is electrically coupled to and between the wireless power transmitter and a power source; and a light fixture comprising: a base disposed on and sealing the top end of the base can, the base comprising an electronics compartment that is at least partially disposed in the base can; a wireless power receiver disposed in the electronics compartment and to wirelessly receive power from the wireless power transmitter; and a light source to receive power from the wireless power receiver. ### Claim 10 (depends on 9) The wirelessly powered airfield lighting device of claim 9, wherein the light source is disposed on top of the base and wherein the electronics compartment is disposed on the bottom of the base opposite the light source. ### Claim 11 (depends on 10) The wirelessly powered airfield lighting device of claim 10, wherein the electronics compartment is disposed within the base can. ### Claim 12 (depends on 9) The wirelessly powered airfield lighting device of claim 9, wherein the light fixture is detachable from the base can by decoupling the base from the base can. ### Claim 13 A wirelessly powered airfield lighting system, comprising: a constant current regulator to supply power; and a plurality of wirelessly powered lighting devices, the plurality of wirelessly powered lighting devices receiving power from the constant current regulator, wherein each wirelessly powered lighting device comprises: a wireless power transmitter disposed in a base can, the wireless power transmitter to wirelessly transmit power; a cover disposed inside the base can, wherein the cover houses the wireless power transmitter and protects the wireless power transmitter from exposure to water when the water is inside the base can; an isolation transformer, wherein the isolation transformer is electrically coupled to and between the wireless power transmitter and a power source; and a light fixture comprising: a base disposed on and sealing the top end of the base can, the base comprising an electronics compartment that is at least partially disposed in the base can; a wireless power receiver disposed in the electronics compartment and to wirelessly receive power from the wireless power transmitter; and a light source to receive power from the wireless power receiver. ### Claim 14 (depends on 13) The wirelessly powered airfield lighting system of claim 13, wherein the plurality of wirelessly powered lighting devices are electrically coupled together in series. ### Claim 15 (depends on 13) The wirelessly powered airfield lighting system of claim 13, wherein isolation transformer is disposed inside the base can. ### Claim 16 (depends on 13) The wirelessly powered airfield lighting system of claim 13, wherein isolation transformer is disposed outside the base can. ### Claim 17 (depends on 13) The wirelessly powered airfield lighting system of claim 13, wherein the light fixture of each wirelessly powered lighting device is detachable from the base can without disconnect the power from the constant current regulator.