# US 11,306,757 B2 · Swing arm for recessed lighting fixtures > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 11,306,757 B2 - Document ID: US11306757B2 - Status: Granted - Kind: B2 - Application number: 17/026,450 - Filed: 2020-09-21 - Published: 2021-03-25 - Granted: 2022-04-19 - Earliest claimed: 2019-09-19 - Assignees: ABL IP Holding LLC - Applicants: ABL IP Holding LLC - Inventors: Stephen Clark - Web page: https://patentgrep.com/patent/US11306757B2 ## CPC - F16B 13/04: with parts gripping in the hole or behind the reverse side of the wall after inserting from the front ({F16B13/002 and F16B13/12 take precedence;} friction-grip releasable fastenings in general F16B2/00) - F21V 21/042: {using clamping means, e.g. for clamping with panel or wall} - F21S 8/026: {intended to be recessed in a ceiling or like overhead structure, e.g. suspended ceiling} - F21V 21/047: {Mounting arrangements with fastening means engaging the inner surface of a hole in a ceiling or wall, e.g. for solid walls or for blind holes} - F16B 21/02: Releasable fastening devices locking by rotation (with snap-action F16B21/06; studs or coupling pins with resilient protrusions F16B21/08) - F21V 29/773: {the planes containing the fins or blades having the direction of the light emitting axis} - F16B: DEVICES FOR FASTENING OR SECURING CONSTRUCTIONAL ELEMENTS OR MACHINE PARTS TOGETHER, e.g. NAILS, BOLTS, CIRCLIPS, CLAMPS, CLIPS OR WEDGES; JOINTS OR JOINTING (couplings for transmitting rotation F16D) - 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 A recessed lighting fixture includes an elongated body including a flange and a pair of swing arms. The swing arms are deployable between a stowed configuration adjacent to the elongated body, to a deployed configuration wherein the swing arms extend radially from the elongated body. In the deployed configuration the swing arms are translatable along threaded members extending along the elongated body in order to clamp a ceiling or other surface between the swing arms and the flange to secure the recessed lighting fixture into a hole in the ceiling. The swing arms comprise removable portions that can be used to increase the range of thicknesses of surface in which the recessed lighting fixture can be installed. ## Claims ### Claim 1 A recessed lighting fixture comprising: an elongated body defining a longitudinal axis and configured to house a light source; a flange provided at an end of the elongated body; a threaded member extending at least partially along the elongated body and rotatably coupled to the elongated body; and a swing arm comprising a first portion threadably coupled to the threaded member, and a second portion extending from the first portion, wherein an end of the second portion most distal from the first portion defines an abutment end, wherein the swing arm is configured to clamp a surface between the abutment end and the flange, wherein the swing arm is configured to be transitioned from an elongated configuration to a shortened configuration, wherein in the elongated configuration the second portion of the swing arm comprises a lower portion, an upper portion, and a breakaway interface between the upper portion and the lower portion, wherein in the shortened configuration the second portion of the swing arm comprises the upper portion and does not comprise the lower portion, wherein the threaded member is configured so that rotating the threaded member with the swing arm in a deployed configuration, with the second portion extending radially from the elongated body, causes the swing arm to translate relative to the elongated body from a first position wherein the abutment end is a first distance from the flange to a second position wherein the abutment end is a second distance from the flange that is less than the first distance, and wherein the breakaway interface comprises one or more apertures between the lower portion and the upper portion, and a reinforcement bar between the one or more apertures and the upper portion of the lower portion and extending across a width of the second portion, wherein the reinforcement bar is thicker than portions of the upper portion and lower portion adjacent to the breakaway interface, and wherein the reinforcement bar is configured to cause bending stress to be concentrated on connection sections between the upper portion and the lower portion and defined by sides of the one or more apertures so that when a bending force is applied to the swing arm bending occurs adjacent the reinforcement bar across the connection sections in order to allow the lower portion of the second portion of the swing arm to be detached from the upper portion in order to transition the swing arm from the elongated configuration to the shortened configuration. ### Claim 2 (depends on 1) The recessed lighting fixture of claim 1, wherein transitioning the swing arm from the elongated configuration to the shortened configuration allows a selection of a first end of the lower portion defining the abutment end or a second end of the upper portion defining the abutment end, wherein the recessed lighting fixture comprises a clamping range defined by a maximum distance defined as a third distance between the flange and the abutment end of the swing arm in the shortened configuration with the swing arm at the first position and a minimum distance defined as a fourth distance between the flange and the abutment end of the swing arm in the elongated configuration with the swing arm at the second position. ### Claim 3 (depends on 1) The recessed lighting fixture of claim 1, wherein the swing arm is configured to be positioned in a stowed configuration with the second portion adjacent to the elongated body, and wherein the swing arm is configured so that rotating the threaded member with the swing arm in the stowed configuration causes the swing arm to rotate from the stowed configuration to the deployed configuration. ### Claim 4 (depends on 3) A method of installing the recessed lighting fixture of claim 3, comprising: inserting the elongated body of the recessed lighting fixture into a hole in a ceiling so that the flange is flush with a surface of the ceiling; and rotating the threaded member to cause the swing arm (1) to transition from the stowed configuration to the deployed configuration and (2) to translate relative to the elongated body from the first position to the second position to clamp the ceiling between the flange and the abutment end of the swing arm. ### Claim 5 (depends on 4) The method of claim 4, wherein after inserting the elongated body into the hole in the ceiling and prior to rotating the threaded member, the method further comprises: attempting to rotate the threaded member in order to rotate the swing arm from the stowed configuration to the deployed configuration and determining that rotation of the swing arm is prevented due to a thickness of the ceiling; removing the elongated body of the recessed lighting fixture from the hole in the ceiling with the swing arm in the stowed configuration, and transitioning the swing arm from the elongated configuration to the shortened configuration; and reinserting the elongated body of the recessed lighting fixture back into the hole in the ceiling with the swing arm in the shortened configuration and in the stowed configuration. ### Claim 6 (depends on 5) The method of claim 5, wherein transitioning the swing arm from the elongated configuration to the shortened configuration comprises bending the lower portion relative to the upper portion to separate the lower portion from the upper portion. ### Claim 7 (depends on 5) The method of claim 5, wherein the recessed lighting fixture further comprises a second swing arm substantially identical to the swing arm, and wherein the method further comprises: transitioning the second swing arm from the elongated configuration to the shortened configuration when the elongated body is removed from the hole; and rotating a second threaded member to cause the second swing arm to transition from the stowed configuration to the deployed configuration, and further rotating the second threaded member to cause the second swing arm to translate relative to the elongated body from the first position to the second position to clamp the ceiling between the flange and the abutment end of the second swing arm. ### Claim 8 (depends on 5) The method of claim 5, wherein the recessed lighting fixture further comprises a second swing arm substantially identical to the swing arm, and wherein the method further comprises: maintaining the second swing arm in the elongated configuration when the elongated body is removed from the hole so that the swing arm and second swing arm are different lengths; and rotating a second threaded member to cause the second swing arm to transition from the stowed configuration to the deployed configuration, and further rotating the second threaded member to cause the second swing arm to translate relative to the elongated body from the first position to the second position to clamp the ceiling between the flange and the abutment end of the second swing arm. ### Claim 9 (depends on 1) The recessed lighting fixture of claim 1, wherein the swing arm is L-shaped with the second portion extending from the first portion in a direction parallel to the longitudinal axis of the elongate body. ### Claim 10 (depends on 1) The recessed lighting fixture of claim 1, wherein the threaded member extends along the elongated body parallel to the longitudinal axis of the elongated body. ### Claim 11 (depends on 1) The recess lighting fixture of claim 1, wherein the elongated body is substantially cylindrical, and wherein the flange is circular. ### Claim 12 (depends on 11) The recessed lighting fixture of claim 11, wherein the flange surrounds a bottom portion of the elongated body. ### Claim 13 (depends on 1) The recessed lighting fixture of claim 1, further comprising a second swing arm substantially identical to the swing arm. ### Claim 14 A method of installing a recessed lighting fixture in a ceiling, the method comprising: providing a light fixture comprising: an elongated body defining a longitudinal axis and configured to house a light source; a flange provided at an end of the elongated body; a threaded member extending at least partially along the elongated body and rotatably coupled to the elongated body; and an swing arm comprising a first portion threadably coupled to the threaded member, and a second portion extending from the first portion in a direction parallel to the longitudinal axis, wherein an end of the second portion most distal from the first portion defines an abutment end, and wherein the second portion of the swing arm comprises a lower portion, an upper portion, and a breakaway interface between the first portion and the second portion, wherein the breakaway interface comprises one or more apertures between the lower portion and the upper portion, and a reinforcement bar between the one or more apertures and the upper portion of the lower portion and extending across a width of the second portion, wherein the reinforcement bar is thicker than portions of the upper portion and lower portion adjacent to the breakaway interface, and wherein the reinforcement bar is configured to cause bending stress to be concentrated on connection sections between the upper portion and the lower portion and defined by sides of the one or more apertures so that when a bending force is applied to the swing arm bending occurs adjacent the reinforcement bar across the connection sections in order to allow the lower portion of the second portion of the swing arm to be detached from the upper portion; inserting the elongated body of the recessed lighting fixture into a hole in the ceiling with the swing arm in a stowed configuration wherein the second portion is substantially flush with the elongated body; rotating the threaded member to cause the swing arm to rotate from the stowed configuration to a deployed configuration wherein the second portion extends radially from the elongated body, and to cause the swing arm in the deployed configuration to translate relative to the elongated body from a first position wherein the abutment end is a first distance from the flange to a second position wherein the abutment end is a second distance from the flange that is less than the first distance to clamp the ceiling between the flange and the abutment end of the swing arm. ### Claim 15 (depends on 14) The method of claim 14, wherein prior to inserting the elongated body of the recessed lighting fixture into the hole in the ceiling, the method further comprises: determining that installation of the light fixture in the ceiling is prevented by a thickness of the ceiling due to the swing arm being in an elongated configuration wherein the swing arm comprises the lower portion, the upper portion and the breakaway interface; and transitioning the swing arm to a shortened configuration by separating the lower portion from the upper portion at the breakaway interface so that an end of the upper portion at the breakaway interface defines the abutment end. ### Claim 16 (depends on 15) The method of claim 15, wherein determining that installation of the light fixture in the ceiling is prevented by the thickness of the ceiling when the swing arm is in the elongated configuration comprises: inserting the elongated body of the recessed lighting fixture into the hole in the ceiling with the swing arm in the elongated configuration so that the flange is flush with the ceiling; attempting to rotate the threaded member to attempt to cause the swing arm to transition to the deployed configuration; and determining that rotation of the swing arm to the deployed configuration is prevented due to a thickness of the ceiling. ### Claim 17 (depends on 15) The method of claim 15, wherein determining that installation of the light fixture in the ceiling is prevented by the thickness of the ceiling when the swing arm is in the elongated configuration comprises: determining that a predetermined thickness of the ceiling is greater than a clamping range of the swing arm in the elongated configuration. ### Claim 18 (depends on 15) The method of claim 15, wherein transitioning the swing arm to the shortened configuration comprises bending the lower portion relative to the upper portion without a tool in order to separate the lower portion from the upper portion.