# US 9,435,519 B2 · Light-fixture support assembly > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 9,435,519 B2 - Document ID: US9435519B2 - Status: Granted - Kind: B2 - Application number: 13/764,749 - Filed: 2013-02-11 - Published: 2014-08-14 - Granted: 2016-09-06 - Earliest claimed: 2013-01-31 - Assignees: Cree, Inc. - Applicants: Cree, Inc. - Inventors: Brian Kinnune; Nathan Snell; Jeremy Sorenson - Web page: https://patentgrep.com/patent/US9435519B2 ## CPC - F21V 21/30: Pivoted housings or frames - F21S 8/086: {with lighting device attached sideways of the standard, e.g. for roads and highways} - F21V 5/007: {Array of lenses or refractors for a cluster of light sources, e.g. for arrangement of multiple light sources in one plane (combination of two or more refractors F21V5/008)} - F21V 11/16: using sheets without apertures, e.g. fixed - F21V 15/01: Housings, e.g. material or assembling of housing parts (F21V15/02 takes precedence {housings forming signs or letters G09F13/04}) - F21V 21/0832: {Hook and loop-type fasteners} - F21V 29/74: with fins or blades - F21V 29/763: {the planes containing the fins or blades having the direction of the light emitting axis} - F21W 2131/103: of streets or roads - F21Y 2115/10: Light-emitting diodes [LED] - 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 - F21W: INDEXING SCHEME ASSOCIATED WITH SUBCLASSES F21K, F21L, F21S and F21V, RELATING TO USES OR APPLICATIONS OF LIGHTING DEVICES OR SYSTEMS - F21Y: INDEXING SCHEME ASSOCIATED WITH SUBCLASSES F21K, F21L, F21S and F21V, RELATING TO THE FORM OR THE KIND OF THE LIGHT SOURCES OR OF THE COLOUR OF THE LIGHT EMITTED ## Abstract An LED light fixture including a housing, a heat sink secured with respect to the housing and an LED illuminator secured with respect to the heat sink. The heat sink includes central and peripheral portions. The central portion has an LED-supporting surface and forward, rearward and lateral sides, the LED illuminator being at the LED-supporting surface. The peripheral portion extends laterally from the lateral sides. The central portion of the heat sink has downwardly-extending shield members at the lateral sides thereof configured and dimensioned to block upward illumination. In embodiments where the optical member is configured for directing emitter light predominantly toward the forward side, the central heat-sink portion has a downwardly-extending shield member at the rearward side thereof configured and dimensioned to block rearward illumination. ## Claims ### Claim 1 A light fixture securable to an elongate support member, the light fixture comprising forward and rearward portions, the rearward portion comprising upper and lower shells defining a fixture interior with a rearward opening for receiving a fixture-adjacent end of the elongate support member into the fixture interior, the rearward portion comprising a fulcrum member extending rearwardly beyond one side of the rearward opening to an exterior fulcrum spaced rearwardly from the rearward opening to pivotably engage an adjacent side of the support member, the rearward portion terminating at the rearward opening along positions opposite the exterior fulcrum to maximize clearance of the support member along such positions, the lower shell being movably secured to the fulcrum member to provide a swinging angle of the lower shell with respect to the upper shell. ### Claim 2 (depends on 1) The light fixture of claim 1 wherein the fulcrum is shaped to limit lateral movement of the support member thereagainst. ### Claim 3 (depends on 2) The light fixture of claim 2 wherein the fulcrum includes a row of teeth configured to engage the support member. ### Claim 4 (depends on 1) The light fixture of claim 1 wherein the fixture comprises a frame defining the forward and rearward portions. ### Claim 5 (depends on 1) The light fixture of claim 1 wherein the lower shell is pivotably connected to the fulcrum member. ### Claim 6 (depends on 4) The light fixture of claim 4 wherein the frame and the fulcrum member are formed as a single piece. ### Claim 7 (depends on 6) The light fixture of claim 6 wherein the fulcrum is shaped to substantially conform to the shape of the support member. ### Claim 8 (depends on 4) The light fixture of claim 4 wherein the frame has a pair of rearmost extensions between which the fulcrum member is secured. ### Claim 9 (depends on 8) The light fixture of claim 8 wherein the frame and the fulcrum member are formed as a single piece. ### Claim 10 (depends on 8) The light fixture of claim 8 wherein the fulcrum member is shaped to substantially conform to the shape of the support member. ### Claim 11 (depends on 10) The light fixture of claim 10 wherein the frame and the fulcrum member are formed as a single piece. ### Claim 12 (depends on 11) The light fixture of claim 11 wherein the single piece is a metal casting. ### Claim 13 (depends on 11) The light fixture of claim 11 wherein the frame, the fulcrum member and the upper shell are formed as a single piece metal casting. ### Claim 14 (depends on 11) The light fixture of claim 11 further comprising an engager secured within the fixture interior in position to engage the opposite side of the support member at a position offset from the fulcrum, the engager being adjustably secured with respect to the upper shell. ### Claim 15 (depends on 14) The light fixture of claim 14 wherein the engager includes a yoke shaped to substantially conform to the shape of the support member, the yoke having a pair of pin-receiving apertures with a shaft portion of a corresponding pin extending therethrough into threaded engagement with the upper shell. ### Claim 16 (depends on 14) The light fixture of claim 14 wherein the fixture interior has an angle-referencing region shaped to engage the fixture-adjacent end of the support member to facilitate positioning of the fixture within one of plural predetermined angle ranges with respect to the support member. ### Claim 17 (depends on 16) The light fixture of claim 16 wherein the angle-referencing region has a step-like configuration extending downwardly from the upper shell with steps each corresponding to one of the plural predetermined angle ranges such that, depending on which of the steps is selected for engagement by the fixture-adjacent end of the support member, adjustment of the engager locks the fixture at a particular angle with respect to the support member within the range of the selected step. ### Claim 18 (depends on 11) The light fixture of claim 11 wherein the lower shell is a one-piece polymeric structure having forward and rearward ends, the rearward end having an integrated hinging member hingedly secured to the fulcrum member. ### Claim 19 (depends on 18) The light fixture of claim 18 wherein the frame, the fulcrum member and the upper shell are formed as a single piece. ### Claim 20 (depends on 19) The light fixture of claim 19 wherein the single piece is a metal casting. ### Claim 21 (depends on 18) The light fixture of claim 18 wherein the integrated hinging member comprises a pair of engaging portions each in snap engagement with one of the side portions of the fulcrum member and each configured for secure pivoting about a respective side of the fulcrum member, thereby providing secure pivotal connection of the lower shell portion with the upper shell with controlled disengagement thereof. ### Claim 22 (depends on 21) The light fixture of claim 21 wherein the exterior fulcrum is between the engaging portions of the lower shell. ### Claim 23 (depends on 21) The light fixture of claim 21 wherein the forward end of the lower shell has an integrated latching member detachably securing the forward end of the lower shell with respect to the upper shell, thereby closing the chamber. ### Claim 24 (depends on 23) The light fixture of claim 23 wherein the integrated latching member comprises a spring tab with a catch at one end and a release actuator at the opposite end, the release actuator being configured such that force applied thereto in one direction pivots the catch in the opposite direction sufficiently to release the catch from locking engagement, thereby detaching the forward end of the lower shell from the upper shell to allow access to the chamber. ### Claim 25 (depends on 24) The light fixture of claim 24 wherein the catch is a hook. ### Claim 26 (depends on 24) The light fixture of claim 24 wherein the frame, the fulcrum member and the upper shell are formed as a single piece. ### Claim 27 (depends on 4) The light fixture of claim 4 wherein: the forward portion is open; and an LED assembly is positioned within the open forward portion and secured with respect to the frame with open spaces remaining therebetween, the LED assembly comprising (a) a heat sink including an LED-supporting region and heat-dissipating surfaces extending therefrom and (b) an LED illuminator secured with respect to the LED-supporting region. ### Claim 28 (depends on 27) The light fixture of claim 27 wherein the frame and the upper shell are formed as a single piece. ### Claim 29 (depends on 28) The light fixture of claim 28 wherein the lower shell is pivotably connected to the fulcrum member. ### Claim 30 (depends on 28) The light fixture of claim 28 wherein the frame, the upper shell and the fulcrum are formed as a single piece. ### Claim 31 (depends on 30) The light fixture of claim 30 wherein the heat sink, the frame, the upper shell and the fulcrum are formed as a single piece. ### Claim 32 (depends on 31) The light fixture of claim 31 wherein the single piece is a metal casting. ### Claim 33 (depends on 31) The light fixture of claim 31 wherein the lower shell is a one piece polymeric structure.