# US 10,767,845 B2 · Core troffer snap in and grounding assembly > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 10,767,845 B2 - Document ID: US10767845B2 - Status: Granted - Kind: B2 - Application number: 16/331,484 - Filed: 2017-09-15 - Published: 2019-07-18 - Granted: 2020-09-08 - Earliest claimed: 2016-09-22 - Assignees: Signify Holding B.V. - Applicants: Signify Holding B.V. - Inventors: Dustin King; Gary Lauderdale; Carlton Bruce Plunk; Christopher Patrick Warner - Web page: https://patentgrep.com/patent/US10767845B2 ## CPC - F21V 25/00: Safety devices structurally associated with lighting devices (gas- tight or water-tight arrangements F21V31/00; in general F16P; protective circuit arrangements per se H02H7/00) - F21S 8/026: {intended to be recessed in a ceiling or like overhead structure, e.g. suspended ceiling} - F21V 15/01: Housings, e.g. material or assembling of housing parts (F21V15/02 takes precedence {housings forming signs or letters G09F13/04}) - F21V 15/015: Devices for covering joints between adjacent lighting devices; End coverings - F21V 21/04: Recessed bases - F21V 23/00: Arrangement of electric circuit elements in or on lighting devices {(characterised by cooling arrangements F21V29/508)} - F21V 23/06: the elements being coupling devices {, e.g. connectors} - F21V: FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR - F21S: NON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS ## Abstract The invention provides a troffer-based lighting arrangement (100) comprising end plates (1100) and a lighting unit (1200) configured between said end plates (1100), wherein the lighting unit (1200) comprises a grounding point (1207) and head ends, wherein the end plates (1100) are associated with the respective head ends via connectors (1300), wherein the lighting unit (1200) and end plates (1100) are in physical contact with each other for providing grounding continuity between the lighting unit (1200) and the end plates (1100), and which connectors (1300) comprise head end locking tabs and end plate locking slots (1103), wherein the locking tabs reside in the respective locking slots (1103). ## Claims ### Claim 1 A troffer-based lighting arrangement comprising end plates and a lighting unit configured between said end plates, wherein the lighting unit comprises a grounding point and head ends, wherein the end plates are associated with the respective head ends via connectors, wherein the lighting unit and end plates are in physical contact with each other for providing grounding continuity between the lighting unit and the end plates, and which connectors comprise head end locking tabs and end plate locking slots, wherein the locking tabs reside in the respective locking slots, the troffer-based lighting arrangement further comprising a troffer, wherein the troffer comprises side elements and said end plates defining a trough-like space for engaging at least part of said lighting unit, and wherein the lighting unit and said end plates are configured in interference fit for providing grounding continuity between the lighting unit and the end plates; wherein the end plates comprise protruding elements that protrude from the end plates and which are configured in interference fit with the lighting unit for providing grounding continuity between the lighting unit and the end plates. ### Claim 2 A troffer-based lighting arrangement comprising end plates and a lighting unit configured between said end plates, wherein the lighting unit comprises a grounding point and head ends, wherein the end plates are associated with the respective head ends via connectors, wherein the lighting unit and end plates are in physical contact with each other for providing grounding continuity between the lighting unit and the end plates, and which connectors comprise head end locking tabs and end plate locking slots, wherein the locking tabs reside in the respective locking slots, the troffer-based lighting arrangement further comprising a troffer, wherein the troffer comprises side elements and said end plates defining a trough-like space for engaging at least part of said lighting unit, and wherein the lighting unit and said end plates are configured in interference fit for providing grounding continuity between the lighting unit and the end plates; wherein the lighting unit comprises a housing comprising cutouts, wherein the end plates comprise catching tabs, wherein the troffer-based lighting arrangement further comprises connectors which connectors provide grounding continuity between the lighting unit and the end plates, and which connectors comprise said catching tabs and cutouts configured in physical contact. ### Claim 3 (depends on 1) The troffer-based lighting arrangement according to claim 1, wherein each head end has a respective reflective face, said head ends facing each other with their reflective faces. ### Claim 4 (depends on 3) The troffer-based lighting arrangement according to claim 3, wherein the side elements comprise light reflective faces. ### Claim 5 A troffer comprising side elements and end plates defining a trough-like space for engaging at least part of a lighting unit, wherein the end plates comprise end plate locking slots for engaging locking tabs comprised by said lighting unit, wherein the end plates comprise protruding elements that protrude from the end plates and which are configured for an interference fit with the lighting unit for providing grounding continuity between the lighting unit and the end plates. ### Claim 6 (depends on 5) The troffer according to claim 5, wherein the end plates further comprise catching tabs for providing together with cutouts in a housing of said lighting unit a physical contact configuration for providing grounding continuity between the lighting unit and the end plates. ### Claim 7 (depends on 5) The troffer according to claim 5, wherein the side elements and the end plates form a fully circumferential wall around the trough-like space. ### Claim 8 A lighting unit comprising a grounding point and head ends, wherein the head ends comprise head end locking tabs for protruding locking slots of a troffer, which troffer comprises end plates, and which troffer is configured to engage at least part of said lighting unit, the lighting unit further comprising a housing, wherein the housing comprises cutouts for providing together with catching tabs of said troffer a physical contact configuration for providing grounding continuity between the lighting unit and the end plates. ### Claim 9 (depends on 5) A kit of parts comprising one or more of said troffers according to claim 5 and one or more lighting units, wherein at least one troffer and at least one lighting unit are configured to provide the troffer-based lighting arrangement. ### Claim 10 (depends on 1) A lighting system comprising the troffer-based lighting arrangement according to claim 1, wherein the lighting unit is in functional connection with an electrical power system, and wherein the end plates, the lighting unit, and the head ends of the lighting unit are in grounding continuity with said grounding point. ### Claim 11 A method of assembling a troffer-based lighting arrangement, the method comprising providing the troffer according to 5 and the lighting unit, moving the lighting unit into the trough-like space until the locking tabs reside in the respective locking slots, wherein the end plates comprise protruding elements that protrude from the end plates, and wherein the method further comprises moving the lighting unit into the trough-like space until the lighting unit is in an interference fit with protruding elements.