CANOPY LUMINAIRE MOUNTING SYSTEM

Abstract

A canopy luminaire mounting system includes a canopy socket assembly configured to be mounted on the canopy structure; a canopy luminaire includes a mating connector assembly that is configured to be received by the canopy socket assembly; the canopy luminaire is detachably secured to the canopy socket assembly in response to relative rotation of the canopy luminaire and the canopy socket assembly; the canopy socket assembly includes at least one electrical contact, and the canopy luminaire mating connector assembly may include at least a second electrical contact that cooperates with at least a first electrical contact to establish an electrical connection between them in response to relative rotation of the canopy luminaire and the canopy socket assembly.

Description

CANOPY LIGHTING MOUNTING SYSTEM CROSS-REFERENCE TO RELATED APPLICATIONS This application claims the benefit of U.S. Provisional Patent Application No. 63 / 193,389, filed on Wednesday, May 26, 2021, the disclosure of which is incorporated herein by reference in its entirety. TECHNICAL FIELD OF THE INVENTION The present invention relates generally to luminaires and, more particularly, to a luminaire mounting system for installing a luminaire on a canopy structure. BACKGROUND OF THE INVENTION Traditionally, the installation and maintenance of petroleum canopy lighting is a multi-step process requiring access to both the top and bottom of the canopy structure supporting the canopy lighting, such as light-emitting diode (LED) canopy luminaires. There are several petroleum lighting manufacturers on the market, and their installation and maintenance methods vary somewhat. One consistency across the industry is the requirement that a penetration hole be cut into the canopy through the canopy deck to route the canopy luminaire's electrical connections from the bottom of the canopy to the top where the electrical service and conduit for the canopy luminaire are installed.The number of canopy penetration holes varies, and typically requires two to four additional holes in the canopy structure, into which mechanical fasteners are installed to secure the canopy luminaire to the canopy cover. The number of penetrations in the canopy should be minimized, as each one represents a weak point subject to water leakage from the top to the bottom of the canopy cover. The typical installation process for a canopy luminaire begins at the bottom of the canopy with the mechanical attachment of the luminaire to the canopy cover and the transfer of the luminaire's electrical mounting section to the top of the canopy. The installer then proceeds to the top of the canopy and performs the electrical assembly and connection to the luminaire. Deinstallation, replacement, and / or maintenance are performed in reverse order, beginning with access to the top of the canopy to disconnect power and then moving to the bottom of the canopy to remove or access the luminaire. MA / a / ZUZZ / UI 1 I In a new canopy installation, the luminaires are typically mechanically attached to the canopy structure by the mechanical contractor who erected the canopy. The electrical connection is required by an electrical contractor who may or may not perform the electrical work at the time of canopy construction. This presents the opportunity for the electrical replacement section of the luminaire to be exposed to the elements, moisture, and debris for extended periods, which can lead to damage or failure of the luminaire. It is not uncommon for the luminaire's electrical connections to be left open for weeks during this process. During maintenance or canopy fixture replacement on an existing canopy structure, the drive lanes beneath the canopy are required to be closed for safety. The contractor must access the upper canopy for electrical disconnection and then move to the lower canopy to remove / maintain the fixtures. This can be a time-consuming event, and the resulting lane closures at fuel pumps lead to lost revenue for the customer and increased service rates for the electrical contractor due to labor costs associated with the time required to service the canopy luminaire. Therefore, there is a need in industry, such as petroleum service stations, for a canopy luminaire mounting system that solves these and other problems associated with conventional methods of installing canopy luminaires on a canopy structure. BRIEF DESCRIPTION OF THE INVENTION The present invention overcomes the foregoing and other deficiencies and drawbacks of previously known canopy luminaire mounting systems. Although the invention will be described in conjunction with certain embodiments, it is to be understood that the invention is not limited to those embodiments. Rather, the invention includes all alternatives, modifications, and equivalents that may be included within the spirit and scope of the invention. The canopy luminaire mounting system of the present invention is specially designed to simplify the installation of a canopy luminaire in a canopy structure with improved reliability and quality of canopy luminaire installation, as well as providing economic benefits by the simplified manner of canopy luminaire installation process. In accordance with one embodiment, the canopy luminaire mounting system of the present invention provides both a mechanical means of attaching the canopy luminaire to the canopy structure and a simplified electrical connection of the canopy luminaire with electrical connections to a power source from an underside of the canopy cover during installation of the canopy luminaire. In another embodiment, the canopy luminaire mounting system of the present invention not only provides mechanical means for attaching the canopy luminaire to the canopy structure, but also provides simultaneous electrical connection of the canopy luminaire to electrical connections to a power source, from the underside of the canopy cover during installation of the canopy luminaire. In this manner, no topside access to a power source is required during installation of the canopy luminaire in the canopy cover. In accordance with an exemplary embodiment of the present invention, there is provided a canopy luminaire mounting system having a canopy socket assembly that is configured to be mounted to a canopy structure, such as a canopy cover. A canopy luminaire is provided with a mating connector assembly that is configured to be received by the canopy socket assembly during installation of the canopy luminaire to the canopy cover, the canopy luminaire being removably secured to the canopy socket assembly in response to relative rotation of the canopy luminaire and the canopy socket assembly; In one embodiment, the canopy socket assembly is configured to be received in a canopy penetration hole formed in the canopy structure from a bottom side of the canopy structure. The canopy socket assembly includes a spring-locking mechanism that is configured to engage the top of the canopy structure to retain the canopy socket assembly in the canopy penetration hole. A locking ring may be attached to the canopy socket assembly that is configured to fit onto the top of the canopy structure. According to one embodiment of the present invention, the canopy cap assembly includes at least one electrical contact and the coupling connector assembly of the canopy luminaire includes at least one second electrical contact that cooperates with the at least one first electrical contact to establish an electrical connection between them. In one embodiment, the at least one second electrical contact cooperates with the at least one first electrical contact to establish an electrical connection therebetween in response to relative rotation of the canopy luminaire and the canopy cap assembly. In one embodiment, the first electrical contact comprises an electrical connector disposed at a lower end of a wiring harness and the at least one second electrical contact comprises an electrical socket that is configured to be electrically connected to the electrical connector. In one embodiment, the at least one electrical contact is provided on an electrical plunger mounted for vertical movement within the canopy socket assembly. The electrical plunger is keyed to an interior surface of the canopy socket assembly to prevent rotation of the electrical plunger within the canopy socket assembly. The electrical plunger is vertically biased relative to the canopy socket assembly by at least one spring mounted between the electrical plunger and the canopy socket assembly. According to one embodiment, the mating connector assembly provided on the canopy luminaire includes a plurality of mounting tabs extending radially outward from an annular side wall of the mating connector assembly. The plurality of mounting tabs are configured to cooperate with an interior surface of the canopy socket assembly to removably secure the canopy luminaire to the canopy socket assembly in response to relative rotation of the canopy luminaire and the canopy socket assembly. The mating connector assembly may include a connector support that is supported by the mating connector assembly. In one embodiment, the connector assembly supports an electrical connector electrically coupled to the luminaire. Alternatively, the connector assembly may support a plurality of male electrical contacts, a plurality of spring-loaded connector pins, or a plurality of electrical connector blades in accordance with various embodiments of the present invention. The electrical plunger mounted within the canopy cap assembly may support a plurality of female electrical contacts, a plurality of electrical traces and / or electrical pads, or a plurality of annular electrical connector plates in accordance with various embodiments. The foregoing and other objects and advantages of the present invention will become apparent from the accompanying drawings and the description thereof. BRIEF DESCRIPTION OF THE DRAWINGS The accompanying drawings, which are incorporated into and form a part of this specification, illustrate embodiments of the invention and, together with a general description of the invention given above and the detailed description given below, serve to explain the invention. Figure 1 is a bottom perspective view of a canopy luminaire mounted in a canopy cover in accordance with an exemplary embodiment of the present invention. Figure 2A is an exploded view of a canopy luminaire mounting system according to an embodiment of the present invention for mounting a canopy luminaire to a canopy cover. Figure 2B is a partially assembled exploded view of the canopy luminaire mounting system of Figure 2A. Figure 2C is a perspective view of the canopy mounting system of Figures 2A and 2B for mounting the canopy luminaire to the canopy cover. Figure 3A is a side plan view, partially in cross-section, showing the canopy luminaire mounting system of Figures 2A through 2C prior to mounting the canopy luminaire to the canopy cover. Figure 3B is a side plan view, in cross section, showing the canopy luminaire mounting system of Figures 2A through 2C and 3A after mounting of the canopy luminaire to the canopy cover. Figure 4 is a perspective view of an exemplary coupling connector assembly mounted on an upper surface of the canopy luminaire shown in Figures 2A through 2C and 3A and 3B. Figure 5 is an exploded view of an example canopy cap assembly as shown in Figures 2A through 2C and 3A and 3B. Figure 6A to 6C are perspective views, partially in cross-section, showing the mounting of the coupling connector assembly of Figure 4 within the canopy cap assembly of Figures 2A to 2C, 3A and 3B and 5. Figures 7A to 7D are perspective views, partially in cross-section, showing the mounting of the coupling connector assembly of Figure 4 and a spring-loaded plunger within the canopy socket assembly of Figures 2A to 2C, 3A and 3B, 5 and 6A to 6C. Figure 8 is a perspective view of a canopy luminaire mounting system according to another embodiment of the present invention for mounting a canopy luminaire to a canopy cover. Figure 9 is a partially exploded assembled view of the canopy luminaire mounting system of Figure 8. Figure 10A is a partially assembled exploded view of an example of a spring-actuated electric plunger for mounting within the canopy cap assembly shown in Figures 8 and 9. Figure 10B is an exploded view of an exemplary coupling connector assembly of the canopy light fixture mounting system shown in Figures 8 and 9. Figures 11A through 11C are perspective views, partially in cross-section, showing the mounting of the canopy luminaire shown in Figures 8, 9, and 10A and 10B to the canopy cover. Figure 12 is a partially assembled exploded view of a canopy luminaire mounting system in accordance with yet another embodiment of the present invention for mounting a canopy luminaire to a canopy cover. Figure 13A is an exploded view of an exemplary mating connector assembly of the canopy luminaire mounting system shown in Figure 12. Figure 13B is an exploded view of an example of a spring-actuated electric plunger for mounting within the canopy cap assembly of Figure 12. Figure 13C is a bottom perspective view of a printed circuit board having concentric circular electrical traces and a central electrical pad for mounting within the spring-loaded electrical plunger of Figure 13B. Figures 14A and 14B are respective cross-sectional views showing the mounting of the canopy luminaire shown in Figure 12 to the canopy cover. Figure 15 is an exploded view of a canopy luminaire mounting system according to yet another embodiment of the present invention for mounting a canopy luminaire to a canopy cover. Figure 16A is a cross-sectional perspective view showing the mounting of an example spring-loaded plunger within the canopy cap assembly of Figure 15. Figure 16B is an exploded view of the spring-actuated electric plunger of Figures 15 and 16A. Figure 17A is a cross-sectional view of an exemplary mating connector assembly mounted on an upper surface of the canopy luminaire shown in Figure 15. Figure 11 is an exploded perspective view of the termination connector shown in Figure 17A. Figure 17C is an exploded perspective view of an exemplary electrical connector blade assembly of the mating connector assembly of Figures 17A and 17B. Figures 18A and 18B are perspective, cross-sectional views showing the mounting of the canopy luminaire of Figure 15 to the canopy cover. Figure 19A is a cross-sectional view of the attachment assembly of Figure 18B, prior to rotation of the canopy luminaire relative to the canopy cap assembly. Figure 19B is a cross-sectional view taken on line 19B-19B of Figure 18B. DETAILED DESCRIPTION OF THE INVENTION Now with respect to the figures, and Figures 1 through 7D in particular, there is shown a single canopy luminaire mounting system 100 in accordance with an exemplary embodiment of the present invention that simplifies and speeds up the installation and service, and increases the reliability, of a canopy luminaire 102 supported by a canopy structure 104, such as the canopy cover. The present invention, as will be described in connection with the exemplary embodiment of Figures 1 through 7D, provides both a mechanical means of attaching the canopy luminaire 102 to the canopy structure 104 and a simplified electrical connection of the canopy luminaire 102 with electrical connections to a power source from the underside 106 of the canopy cover 104 during installation of the canopy luminaire 102. In each of the exemplary embodiments described in detail below, the canopy luminaires 102, 302, 502, and 702 may comprise the SCOTTSDALE® VERTEX™ canopy lighting fixture or the SCOTTSDALE® SCM canopy lighting fixture, both of which are light-emitting diode (LED) canopy luminaires commercially available from LSI Industries, Inc. of Cincinnati, Ohio. The canopy light fixture mounting system 100 according to Figures 1 to 7D comprises in one embodiment, as shown in Figures 2A to 2C, 3A and 3B and 7A to 7D, a canopy socket assembly 108 including a spring-loaded plunger 110 supported for vertical movement within a housing 112 of the canopy socket assembly 108. The plunger 110 includes an annular sidewall 114 having an outer surface 116 that is keyed with an inner surface 118 of an annular sidewall 120 of the housing 112 to prevent rotation of the plunger 110 relative to the housing 112 during vertical movement of the plunger 110 within the housing 112 as described in greater detail below.As shown in the figure in an exemplary embodiment, the annular sidewall 120 of the housing 112 includes a plurality of alternating vertically oriented ribs 122 and channels 124, and the annular sidewall 114 of the plunger 110 also includes a plurality of alternating vertically oriented ribs 122 and vertically oriented ribs 126 and channels 128. The ribs 122 of the housing 112 are keyed to the channels 128 of the plunger 110, while the ribs 126 of the plunger 110 are keyed to the channels 124 of the housing 112. Furthermore, the canopy cap assembly 108 includes an electrical wiring housing or junction box 130 having an annular side wall 132 that includes one or more electrical conduit connection points 134. The electrical wiring enclosure or junction box 130 includes a removable access cover 136 that is sealed with a gasket 138 (FIGS. 3B and 5) to an upper annular rim 140 of the electrical wiring enclosure or junction box 130 to provide access to the interior of the electrical wiring enclosure or junction box 130 as needed. The electrical wiring enclosure or junction box 130 includes a bottom wall 142 extending radially beyond the outer periphery of the annular side wall 132 to form a mounting flange 144 that is connected to an upper annular edge 146 of the housing 112 via suitable fasteners 147. The bottom wall 142 of the electrical wiring enclosure or junction box 130 has an internal protrusion 148 (FIG. 3A) for providing an electrical ground connection to the electrical wiring enclosure or junction box 130. As shown in Figures 3A and 3B, and as will be described in greater detail below, the bottom wall 142 of the electrical wiring enclosure or junction box 130 includes an opening 150 formed therethrough that allows a pre-wired quick connect / disconnect harness 152 to pass from the electrical wiring enclosure or junction box 130 to an interior of the housing 112. A grommet 154 is provided in the opening 150 to provide a watertight seal between the bottom wall 142 and the quick connect / disconnect harness 152. As shown in the embodiment of Figures 2A, 3A, 5 and 7B to 7D, the plunger 110 includes four spring seats 156 disposed around an upper portion of the plunger 110, each of which receives a respective compression spring 158. In one embodiment, each of the springs 158 is vertically oriented and has a free end 160 supported in the respective spring seat 156 and an opposite free end 162 extending upwardly beyond an upper annular edge 164 of the annular sidewall 114 of the plunger 110 (Figures 7C and 7D). For reasons described in more detail below, plunger 110 includes four prongs 166 extending downwardly from a lower annular edge 168 of plunger 110 as shown in FIGS. 7A-7D and are circumferentially spaced about the lower annular edge 168 of plunger 110. In an exemplary embodiment, each prong 166 has a pair of converging faces 170a, 170b that meet at a common downwardly facing edge 172 that is spaced downwardly from the lower annular edge 168 of plunger 110. As shown in Figures 7A and 7D, the bottom wall 142 of the electrical wiring enclosure or junction box 130 includes four protrusions 174 extending downwardly from the bottom wall 142 and are in vertical register with the respective free ends 162 of the springs 158 and the four spring seats 156. The free ends 162 of the springs 158 receive the respective protrusions 174 so that the respective positions of the springs 158 are maintained between the spring seats 156 and the protrusions 174.The four springs 158 are located between the four spring seats 156 and the bottom wall 142 of the electrical wiring enclosure or junction box 130 such that the springs 158 force the plunger 110 downwardly within the housing 112, but the springs 158 are compressible so as to allow the plunger 110 to move upwardly within the housing 112 in response to a vertical upward force being applied to the plunger 110 as will be described in greater detail below. Referring now to Figure 2A through 2C, 3A and 3B, 4, 6A and 6C, and 7A through 7D, the canopy luminaire 102 includes a mating connector assembly 176 mounted by fasteners 178 (Figure 3B), to a mounting boss 180 (Figures 9 and 10B) extending upwardly from a top wall 182 of the canopy luminaire 102 facing the canopy cover 104 during installation and use of the canopy luminaire 102. Mating connector assembly 176 includes an annular side wall 184 and a connector mount 186 (FIGS. 2A-2C) secured to annular side wall 184 of mating connector assembly 176 via fasteners 188 (FIGS. 2C). As shown in FIGS. 2A-2C, 3A-3B, and 4, a top wall 190 of connector mount 186 supports a snap-fit ​​electrical socket 192 that is configured to be electrically connected to a mating electrical connector 194 (FIGS. 3A and 3B and 5) provided at a free end of coiled wire harness 152 extending into housing 112 of canopy socket assembly 108. Snap-fit ​​socket 192 is electrically connected to internal electrical wiring of light fixture 196 as shown in FIG.As will be described in more detail below, the mating connector 194 of the coiled wire harness 152 is plugged into the snap-on socket 192 of the mating connector assembly 176 prior to mating the luminaire 102 with its mating connector assembly 176 to the canopy socket assembly 108 during installation of the canopy luminaire 102 into the canopy cover 104. Referring now to the exemplary embodiments of Figures 2A through 2C, 3A and 3B, 4, 6A through 6C, and 7A through 7D, the mating connector assembly 176 of the canopy luminaire 102 includes four mounting tabs 198 extending radially outwardly from the annular sidewall 184 of the mating connector assembly 176 and are circumferentially spaced about the annular sidewall 184. As shown in Figures 3A and 4, each of the mounting tabs 198 includes a horizontal top face 200 that is coextensive with an upper annular edge 202 of the mating connector assembly 176. Each mounting tab 198 includes a pair of ramp faces 204a, 204b extending outwardly and downwardly from respective opposite ends of the top face. horizontal 200.The pair of ramp faces 204a, 204b extend from the horizontal top face 200 to opposite ends of a horizontal bottom face 206 of each mounting lug 198 as shown in the exemplary embodiment. Referring now to Figures 6A and 7A, the inner surface 118 of the housing 112 includes four horizontal projections 208 that are circumferentially spaced about the inner surface 118 and are configured to abut the lower annular edge 168 of the plunger 110 to support the plunger 110 within the housing 112 when the plunger 110 is in its lowest position in response to the downward biasing force applied by the springs 158. Each horizontal flange 208 includes a respective notch 210 at an end of the flange 208 which, according to an exemplary embodiment, includes a horizontal flange 212 located at a height below the height of the horizontal flange 208 and an inclined ramp 214 extending upwardly between an end of the horizontal projection 212 and a free end of the horizontal projection 208 as shown in Figures 6A and 7A. As shown in Figure 7A, each of the horizontal projections 208 terminates at an opposite end of the projection 208 in a respective vertically oriented side wall 216 of each channel 124. As shown in Figure 7B, the lower annular edge 168 of the plunger 110 rests on the four horizontal projections 208 when the plunger 110 is in its lowest position.Each of the tips 166 extending downward from the lower annular edge 168 of the plunger 110 is positioned in a respective one of the notches 210 at the lowest position of the plunger 110 as shown in Figure 7B. In one embodiment, the canopy cap assembly 108 is installed through a canopy penetration hole 218 approximately 4 inches (Figures 2A and 2B) from the bottom side 106 of the canopy cover 104. A spring locking mechanism 220 provided on the canopy cap assembly 108 engages the top 222 of the canopy cover 104 as the canopy cap assembly 108 passes through the canopy penetration hole 218, thereby temporarily holding the canopy cap assembly 108 in place until installation is complete. A locking ring 224 is connected to the canopy cap assembly 108 from the top 222 of the canopy cover 104 such that the locking ring 224 is disposed around and surrounds the canopy cap assembly 108. The locking ring 224 is attached to the cover cap assembly 108 by mechanical means, such as fasteners 226 (Figures 2A to 2C and 3A-3B) or any other suitable attachment method. This creates compression of an annular gasket 228 disposed around the canopy gland assembly 108 and positioned between a radially outwardly directed annular flange 230 of the canopy gland assembly 108 and the underside 106 of the canopy cover 104 to seal the penetration hole 218 in the canopy cover 104 and lock the canopy gland assembly 108 in place. During installation of the canopy luminaire 102 into the canopy socket assembly 108 mounted on the canopy cover 104, the mating electrical connector 194 of the coiled wire harness 152 is first plugged into the snap-on socket 192 of the mating connector assembly 176 prior to mating the luminaire 102 with its mating connector assembly 196 to the canopy socket assembly 108. The luminaire 102, with its mating connector assembly 196, is then inserted into the cover cap assembly 108 in one of four orientations, as shown in Figures 2C, 6A and 7B. In particular, according to one embodiment as shown in these figures, the annular side wall 120 of the housing 112 includes four circumferentially spaced and vertically oriented channels 124, each of which is configured to receive a respective one of the mounting tabs 198 of the mating connector assembly 176 in four different orientations (e.g., in 90° rotation increments).The mounting tabs 198 of the mating connector assembly 176 are movable vertically upward within the respective vertical channels 124 until the upper annular edge 202 of the mating connector assembly 176 abuts the lower horizontal faces 232 of the ribs 122 provided on the annular side wall 120 of the housing 112 of the canopy socket assembly 108 as shown in Figures 6A through 6C. The lower horizontal faces 232 of the ribs 122 form stop surfaces that prevent further vertical insertion of the mating connector assembly 176 into the housing 112 of the canopy socket assembly 108. Once the upper annular edge 202 of the mating connector assembly 176 abuts the lower horizontal faces 232 of the ribs 122, the light fixture 102 with its mating connector assembly 176 is free to rotate relative to the canopy cap assembly 108 as shown in Figures 6B and 7C so that the ramp-front faces 204a of the mounting tabs 198 mate with a facing face 170a of a respective prong 166. As the luminaire 102 and its mating connector assembly 176 rotate further, the forward ramp faces 204a of the mounting tabs 198 cause the prongs 166, and thus the electric plunger 110, to move vertically upward to a raised position within the housing 112 against the bias of the springs 158 as the prongs 166 ride up the respective forward ramp faces 204a of the mounting tabs 198. In response to further rotation of the luminaire 102 and its mating connector assembly 176, the prongs 166 travel across the respective horizontal upper faces 200 of the mounting tabs 198 while the horizontal lower faces 206 of the mounting tabs 198 engage the respective horizontal shelves 208 provided on the inner surface 118 of the annular side wall 120 of the housing 112 as shown in Figure 6C. Once sufficient rotation has occurred, for example, approximately 30°, the prongs 166 descend over the rear ramp faces 204b of the respective mounting tabs 198 as shown in Figure 7D to lock the light fixture 102 into the canopy cap assembly 108 as shown in Figures 1 and 3B. In this locked position, the plunger 110 is lowered from its temporary raised position in response to downward force applied to the plunger 110 by the springs 158 such that the lower annular edge 168 of the plunger 110 bears upon the upper annular edge 202 of the mating connector assembly 176 of the light fixture 102. Furthermore, in this locked position, each mounting lug 198 is trapped between a respective vertical side wall 216 (FIG. 7A) of a respective vertical channel 124 of the housing 112 and a respective prong 166 engaged with a rear ramp face 204b of each mounting lug 198 as shown in FIG. 7D. Referring now to Figures 8 through 11C, there is shown a canopy luminaire mounting system 300 according to another embodiment, where the like numerals represent similar, though not necessarily identical, parts to the canopy luminaire mounting system 100 of Figures 1 through 7D, with corresponding like parts numbered with a preceding numeral 3. As described in detail below, the canopy luminaire mounting system 300 provides both a mechanical means of attaching the canopy luminaire 302 to the canopy or cover structure 304 and a simultaneous electrical connection of the canopy luminaire 302 with electrical connections to a power source, from the underside 306 of the canopy cover 304 during installation of the canopy luminaire 302. In other words, topside access to a power source is not required during installation of the canopy luminaire 302 to the canopy cover 304. The canopy light fixture mounting system 300 comprises, in one embodiment, as shown in Figures 9, 10A and HA-11C, a canopy socket assembly 308 including a spring-loaded electrical plunger 310 containing female electrical contacts 311 connected to primary electrical conductors 313 (Figures HA and 11B). In addition, the canopy socket assembly 308 includes an electrical wiring enclosure or junction box 330 with one or more conduit connection points 334, as well as a sealed access cover 336 for accessing the interior of the electrical wiring enclosure or junction box 330 as needed as described in detail above. As shown in Figures 8, 9 and HA, a cam and pusher detail 315 and 317 is provided on mounting tabs 398 of a mating connector assembly 376 of the canopy luminaire 302 and on an inner surface 318 of a housing 312 of the canopy socket assembly 308, respectively, which guides the mating connector assembly 376 of the canopy luminaire 302 into a locked position, with approximately 30° of rotation of the luminaire 302 as described in greater detail below, with the canopy socket assembly 376, thereby making the necessary electrical connections between the female electrical contacts 311 of the spring-loaded electrical plunger 310 and male electrical contacts 319 provided on a connector assembly 386 secured in the mating connector assembly 376 of the canopy luminaire. 302. The electric plunger 310 is keyed to an inner surface 318 of the housing 312 of the canopy bushing assembly 308 to prevent rotation of the electric plunger 310 within the housing 312 during vertical movement of the electric plunger 310 as described in detail below. As shown in Figures HA through 11C, the female electrical contacts 311 of the spring-loaded electrical plunger 310 have openings that allow the male electrical contacts 319 of the mating connector assembly 376 to pass through and rotate during installation of the canopy light fixture 302 to establish the necessary electrical connections of the light fixture 302 to the canopy socket assembly 308. As described above in connection with the canopy light fixture mounting system 100 of Figures 1 through 7D, the canopy socket assembly 308 is installed through a canopy penetration hole 338 approximately 4 in. (Figure 9) from the underside 306 of the canopy cover 304. A spring locking mechanism 320 provided on the canopy socket assembly 308 engages the top 322 of the canopy cover 304 as the canopy socket assembly 308 passes through the canopy penetration hole 338, thereby temporarily holding the canopy socket assembly 308 in place until installation is complete. A locking ring 324 is mounted around the canopy cap assembly 308 from the top 322 of the canopy cover 304. The locking ring 324 is attached to the canopy cap assembly 308 by mechanical means, such as fasteners 326 (Figures 8) or any other suitable attachment method. This creates compression of a gasket 328 located between a radially outwardly directed annular flange 330 of the canopy cap assembly 308 and the underside 306 of the canopy cover 304 to seal the penetration hole 338 in the canopy cover 304 and lock the canopy cap assembly 308 in place. The male electrical contacts 319 of the mating connector assembly 376 are electrically connected to the internal electrical wiring of the luminaire 396 (figure 10B) connected to the luminaire 302. Included in the male electrical contacts 319 of the mating connector assembly 376 is a center grounding pin 321. The mating connector assembly 376 is keyed to mate with the canopy cap assembly 308 in four orientations with a 90° rotational separation. During installation of the canopy luminaire 302 into the canopy socket assembly 308 mounted on the canopy 304, the luminaire 302, with its mating connector assembly 376, couples to the canopy socket assembly 308 in one of four orientations. As shown in Figures HA through 11C, rotation of the luminaire 302 relative to the canopy socket assembly 308 engages the cam / follower features 315 and 317 described above which pull the luminaire 302 toward the canopy socket assembly 308 during rotation of the luminaire. 302, while the male and female electrical contacts 319 and 311, respectively, in both the light fitting mating connector assembly 376 and the electrical plunger 310 mate simultaneously to establish an electrical connection between them. Once sufficient rotation of the luminaire 302 has occurred, e.g., about 30°, prongs 366 (FIGS. 10B and HA) provided on the lower annular edge 368 of the spring-loaded electric plunger 310 located in the canopy socket assembly 308 engage detent features 339 (FIGS. 10B) provided on the upper horizontal faces 341 of the mounting tabs 398 provided on the mating connector assembly 376, thereby preventing the luminaire 302 from rotating further and locking it in place relative to the canopy 304 as shown in FIG. 11C. The female electrical terminals 311 of the spring-loaded electrical plunger 310 that mate with the male electrical contacts 319 contained within the connector assembly 386 of the mating connector assembly 376 are insulated within the electrical plunger 310 which is located within the canopy socket assembly 308. The isolation is achieved using an insulating composite polymeric material. Furthermore, the design of the spring-loaded electrical plunger 310 is such that the electrically active components within the electrical plunger 310 are safe to touch, similar to a traditional wall socket. Because of this, the light fixture 302 with the mating connector assembly 376 can be uninstalled while the canopy socket assembly 308 mounted to the canopy structure 304 remains electrically active.The present invention eliminates the requirement to access the top 322 of the canopy structure 304 to disconnect electrical service so that the luminaire 302 can be removed for maintenance and / or replacement. In accordance with another preferred embodiment of the present invention, as shown in Figures 12 to 14B, there is provided a canopy light fixture mounting system 500, where the same numerals represent similar, although not necessarily identical, parts to the canopy light fixture mounting system 100 of Figures 1 to 7D and the canopy mounting system 300 of Figures 8 to 11C, with corresponding similar parts numbered with a preceding numeral 5. Similar to the canopy luminaire mounting system 300 of Figures 8 through 11C, the canopy luminaire mounting system 500 of this exemplary embodiment provides both a mechanical means of attaching the canopy luminaire 702 to the canopy structure or cover 504 and a simultaneous electrical connection of the canopy luminaire 502 to a power source, from the underside 506 of the canopy cover 504 during installation of the canopy luminaire 502. In other words, topside access to a power source is not required during installation of the canopy luminaire 502 to the canopy cover 504. In this embodiment, a luminaire 502 is provided having a mating connector assembly 576 including three spring-loaded connector pins 551a-551c (Figures 12, 13A and 14A and 14B) that provide electrical connection of the luminaire 502 to the canopy cap assembly 508 mounted on a canopy cover 504 in a manner described in detail below. Although not shown, the canopy light fixture mounting system of this embodiment also includes a spring-locking mechanism provided on the canopy socket assembly 508 to temporarily hold the canopy socket assembly in place until installation is complete. A locking ring 524 is mounted around the canopy socket assembly 508 to compress the gasket 528 located between the flange 530 of the canopy socket assembly 508 and the underside 506 of the canopy cover 504 as described above in connection with the previous embodiments (Figures 14A and 14B). As shown in Figures 12, 13A and 14A and 14B, the mating connector assembly 576 includes a cup-shaped connector mount 586 secured to the mating connector assembly 576 via suitable fasteners (not shown). The connector assembly 586 includes a bottom wall 587 and an annular side wall 589 extending upwardly from the bottom wall 587. Three annular spring seats 591 extend upwardly from the bottom wall 587 and are each configured to receive and support a respective compression spring 593 and a connector pin 595 extending at least partially through each spring 593. In one embodiment, the three spring seats 591 are aligned along a common radius of the connector assembly 586 as shown in Figure 13A. As shown in Figures 12, 13A and 14A and 14B, connector pins 551a-551c are elongated and include radially outwardly directed collars 595 that capture springs 593 between the respective collars 595 and a bottom wall (not shown) of the respective spring seats 591, with bottom portions of the connector pins 551a-551c extending downwardly from the bottom wall 587 of the connector assembly 586 through openings 597 formed through the bottom wall 587 (Figures 14A and 14B). The lower portions of the connector pins 551a-551c extending below the bottom wall 587 of the connector assembly 586 are electrically connected to the internal electrical wiring of the luminaire 596 as shown in Figures 14A and 14B. Compression springs 593 bias the connector pins 551a-551c upward relative to the respective spring seats 591, as shown in Figure 14A. Further referring to Figure 12, 13A and 14A and 14B, the connector mount 586 includes a cap 601 that is secured to an upper annular edge 602 of the connector mount 586 through suitable fasteners (not shown). The cover 601 includes three openings 603 that receive a respective upper portion of each connector pin 551a-551c therethrough, for example, an upper portion of the respective connector pins 551a-551c located on the respective collars 595. The three openings 603 are in vertical registration with the three spring seats 591 when the cover 601 is secured to the connector assembly 586. As shown in Figure 13A, the connector assembly 586 includes four upwardly extending fasteners 605 that are received in the respective openings 607 provided in the cover 601. In this way, proper alignment and fixation of the cover 601 with respect to the connector assembly 586 is assured. As shown in Figures 14A through 14B, an upper portion of each connector pin 551a-551c extends upwardly beyond cap 601. Cap 601 limits upward vertical movement of connector pins 551a-551c relative to spring seats 591 by engaging collars 595 of connector pins 551a-551c which are biased upwardly by springs 593 as shown in Figure 14A. Similar to the canopy luminaire mounting system 300 of Figures 8 through 11C, a cam and follower detail 515 and 517 is provided on mounting tabs 598 of the mating connector assembly 576 of the canopy luminaire 502 and on an inner surface 518 of a housing 512 of the canopy socket assembly 508, respectively, which guides the mating connector assembly 576 of the canopy luminaire 502 into a locked position, with approximately 30° of rotation of the luminaire 502, as described in greater detail below. As shown in Figures 12, 13B and 14A and 14B, a spring-loaded electric plunger 510 is mounted within housing 512 of canopy cap assembly 508. Electric plunger 510 is keyed to an inner surface 518 of housing 512 of canopy cap assembly 508 to prevent rotation of electric plunger 510 within housing 512 during vertical movement of electric plunger 510 as described in detail below. In one embodiment, as shown in Figures 13B and 14A and 14B, the electric plunger 510 includes a cup-shaped bottom plate 609 having a bottom wall 611 and an annular side wall 613 extending upwardly from the bottom wall 611. A plurality of arcuate slots 615 and a central opening 617 are formed through the bottom wall 611, and each of the arcuate slots 615 has a respective arcuate slot wall 619 extending upwardly from the bottom wall 611. The central opening 617 includes a generally circular central opening wall 621 also extending upwardly from the bottom wall 611. As shown in Figures 12, 13B and 13C and 14A and 14B, a circular printed circuit board disc 623 is supported on the respective upper annular edges 625 of the walls of the arcuate groove 619 and the wall of the central opening 621, with the printed circuit board 623 electrically connected to the main electrical conductors 626 (Figures 14A and 14B). As shown in Figure 13C, the printed circuit board 623 has a bottom side 627 facing the plurality of arcuate slots 615 and the central opening 617. In one embodiment, the bottom side 627 of the printed circuit board 623 is provided with concentric circular electrical traces 629 and a central electrical pad 631. Each of the circular electrical traces 629 and the central electrical pad 631 are electrically connected to the primary electrical conductors 626 (Figures 14A and 14B). The circular electrical traces 629 are in register with the plurality of arcuate slots 615, and the central electrical pad 631 is in register with the central opening 617. With respect to Figures 12, 13B and 14A and 14B, the electric plunger 510 further includes a cap 633 that is mounted to an upper annular edge 635 of the annular side wall 613 of the lower plate 609 of the electric plunger 510 by fasteners 637 (Figure 13B). The cap 633 includes a central opening 639 to allow the electrically forming main conductors 626 to extend therethrough and be electrically connected to the printed circuit board 623 (Figures 14A and 14B). The lid 633 also includes four spring seats 641 extending upwardly from a top wall 643 of the lid 633 and configured to respectively receive four compression springs 645 within the spring seats 641. The compression springs 645 are captured between a bottom wall (not shown) of each spring seat 641 and a bottom wall 647 of the electrical wiring cabinet or junction box 530 as shown in Figures 14A and 14B. During installation of the canopy luminaire 502 into the canopy socket assembly 508 mounted on the canopy 504, the luminaire 502, with its mating connector assembly 576, engages the canopy socket assembly 508 in one of four orientations. As shown in Figures 14A and 14B, rotation of the luminaire 502 relative to the canopy cap assembly 508 engages the above-described cam / pusher features 515 and 517 which pull the luminaire 502 toward the canopy cap assembly 508 during rotation of the luminaire 502, while the free ends of the connecting pins 551a-551c of the luminaire coupling connecting assembly 576 and the circular electrical traces 629 and the central electrical pad 631 of the electrical plunger 510 simultaneously engage to establish an electrical connection between them.Once sufficient rotation of the luminaire 502 has occurred, for example, approximately 30°, the prongs 566 (Figures 13B and 14A) provided on the lower annular edge 568 of the spring-loaded electric plunger 510 located in the canopy socket assembly 508 engage the detent features 539 (Figure 13A) provided on the upper horizontal faces 541 of the four mounting tabs 598 provided on the mating connector assembly 576, thereby preventing the luminaire 502 from rotating further and locking it in place relative to the canopy 504 as shown in Figure 14B. In this position, the connector pins 551a-551c compress the springs 645 within the spring seats 641 in response to the engagement of the free ends of the connector pins 551a-551c with the printed circuit board 623 as shown in Figure 14B. Now referring to another exemplary embodiment of the present invention as shown in Figures 15 through 19B, there is provided a canopy light fixture mounting system 700, where the like numerals represent similar, though not necessarily identical, parts to the canopy light fixture mounting system 100 of Figures 1 through 7D, the canopy mounting system 300 of Figures 8 through 11C, and the canopy mounting system 500 of Figures 12 through 14B, with corresponding like parts numbered with a fore-number 7. Similar to the canopy luminaire mounting system 300 of Figures 8 through 11C and the canopy mounting system 500 of Figures 12 through 14B, the canopy luminaire mounting system 700 of this exemplary embodiment provides both a mechanical means of securing the canopy luminaire 702 to the canopy structure or cover 704 and a simultaneous electrical connection of the canopy luminaire 702 to electrical connections of a power source, from the underside 706 of the canopy cover 704 during installation of the canopy luminaire 702. In other words, topside access to a power source is not required during installation of the canopy luminaire 702 to the canopy cover 704. The canopy light fixture mounting system 700 comprises, in one embodiment, as shown in Figures 15, 16A, 18A and 18B, a canopy socket assembly 708 including a spring-loaded electric plunger 710 supported for vertical movement within a housing 712 of the canopy socket assembly 708. The electric plunger 710 includes an exterior surface 703 that is keyed to an interior surface 718 of an annular side wall 720 of the housing 712 to prevent rotation of the electric plunger 719 relative to the housing 712 during vertical movement of the plunger 710 within the housing 712 as described in greater detail below. In this embodiment, a luminaire 702 is provided having a mating connector assembly 776 including three radially outwardly projecting electrical connector blades 705a-705c (Figures 15A, 17A to 17C and 19A and 19B) that provide electrical connection of the luminaire 702 to the canopy cap assembly 708 mounted on a canopy cover 704 in a manner described in detail below. As shown in Figures 17A and 17B, the mating connector assembly 776 includes a bottom wall 715 and an annular side wall 717 extending upwardly from the bottom wall 715. The mating connector assembly 776 includes an inverted cup-shaped connector mount 719 having a top wall 721 and an annular side wall 723 extending downwardly from the top wall 721. The connector assembly 719 is mounted within the annular side wall 717 of the mating connector assembly 776 and is supported by four compression springs 723 for vertical floating movement of the connector support 719 relative to the bottom wall 715 of the mating connector assembly 776 as shown in Figure 17A.Springs 723 are mounted about four respective fasteners 731 that extend upwardly from bottom wall 715 of mating connector assembly 776 and bias connector assembly 719 upwardly relative to bottom wall 715. Fasteners 731 are threaded to bottom wall 715 of mating connector assembly 776 and have unthreaded free ends 733 that are received in unthreaded holes 735 formed in top wall 721 of connecting bracket 719 (FIGS. 17B and 18A). The floating connector mount 719 is prevented from rotating relative to the remainder of the mating connector assembly 776 by four horizontally oriented fasteners 737 extending radially inwardly from the mating connector assembly 776 through the annular sidewall 717 of the mating connector assembly 776, as shown in Figure 17B. The four horizontally oriented fasteners 737 have free ends 739 that are received for vertical travel in respective vertical channels 741 provided in the annular sidewall 717 of the mating connector assembly 776. An electrical connector blade assembly 743 is mounted to the top wall 721 of the connector support 719 via fasteners 745 as shown in Figure 17B. As shown in Figures 17A and 17B, the electrical connector blade assembly 743 comprises, in one embodiment, a vertical stack of three spacer plates 747a-747c, each of which supports a respective electrical connector blade 705a-705c extending radially outward beyond an outer circumferential wall 751 of the electrical connector blade assembly 743. A cap 753 is mounted to the upper spacer plate 747a. As shown in Figures 17B and 17C, the three electrical connector blades 705a-705c are vertically offset from each other by spacer plates 747a-747c, and each of the electrical connector blades 705a-705c is circumferentially offset from an adjacent electrical connector blade 749a-749c in 90° increments. The spacer plates 747a-747c are fabricated from an electrically insulating polymeric material. As shown in Figures 17A and 17B, the top wall 721 of the connector assembly 719 includes multiple openings 755 formed therethrough to allow the internal electrical wiring of the luminaire 757 to pass through the openings 755 to be electrically connected to the three electrical connector blades 705a-705c. As shown in Figures 17A and 17C, each of the electrical connector blades 705a-705c includes a respective screw-actuated clamp 759a-759c to securely establish an electrical connection of the internal electrical wiring of the luminaire 757 to the electrical connector blades 705a-705c. Referring now to Figures 15, 16A and 16B and 18A and 18B, the electric plunger 710 comprises, in one embodiment, a vertical stack of four annular spacer plates 761a-761d, with the lower three annular spacer plates 761b-761d each supporting a respective annular electrical connector plate 763a-763c. As shown in FIG. 16B , the four annular spacer plates 761a-761d are joined together by four fasteners 765 extending vertically through openings 767 formed through the respective annular spacer plates 761a-761d. Four threaded nuts 769 are provided for threadably engaging the lower threaded ends 771 of the four fasteners 765. When the four annular spacer plates 761a-761c are assembled together, with the three annular electrical connector plates 763a-763c supported on the upper surfaces 773b-773d of the three lower annular spacer plates 761b-761d, annular horizontal channels 775 are formed between an upper surface 777a-777c of each annular electrical connector plate 763a-763c and a respective lower surface 779a-779c of an adjacent annular spacer plate 761a-761c, i.e., the lower surfaces 779a-779c of the three upper annular spacer plates 761a-761c as shown in Figures 18A and 18B.The horizontal annular channels 775 are configured to allow respective electrical connecting blades 705a-705c to rotate within the horizontal annular channels 775 during rotation of the luminaire 702 as described in detail below, thereby establishing an electrical connection between each of the electrical connecting blades 705a-705c and a respective annular electrical connecting plate 763a-763c as shown in Figure 19B. Primary replacement conductors (not shown) are routed through grommet 754 provided in bottom wall 742 of electrical wiring enclosure or junction box 730 to each of annular electrical connecting plates 763a-763c. Each of the three upper annular spacer plates 761a-761c includes a respective screw actuated clamp 783 for securely establishing an electrical connection of the primary conductors (not shown) to annular electrical connecting plates 763a-763c as shown in Figure 16B. A spring locking mechanism 820, a locking ring 724, and an annular seal 728 are provided with the canopy light fixture locking system 700 similar to the various other embodiments described in detail above in connection with Figures 1 through 14B. As shown in Figures 15, 16A and 16B and 18A and 18B, the upper annular spacer plate 761a of the electric plunger 710 includes four spring seats 785 that each receive a respective spring 787. In one embodiment, each of the springs 787 is vertically oriented and has a free end 789 supported in the respective spring seat 785 and opposite free ends 791 of the springs 787 receive respective protrusions 793 extending downwardly from the bottom wall 742 of the electrical system, wiring enclosure or junction box 730. The protrusions 793 are in vertical register with the respective free ends 791 of the springs 787 and the four spring seats 785. The free ends 791 of the springs 787 receive the respective protrusions 793 so that the respective positions of the springs 787 are held between the spring seats 785 and the protrusions 793.The four springs 787 are located between the four spring seats 785 and the bottom wall 742 of the electrical wiring enclosure or junction box 730 such that the springs 787 force the electrical plunger 710 downwardly within the housing 712, but the springs 787 are compressible so as to allow the electrical plunger 710 to move upwardly within the housing 712 in response to a vertical upward force being applied to the electrical plunger 710 as will be described in greater detail below. As shown in Figures 16B and 19A and 19B, each of the annular spacer plates 761a-761c is provided with four lobes 803 extending radially outward in 90° increments from a central opening 805 of each annular spacer plate 747a-747c. The four lobes 803 provided on each annular spacer plate 761a-761d are provided to allow the three electrical connector blades 705a-705c of the mating connector assembly 776 to vertically travel within the electrical plunger 710 prior to rotation of the luminaire 702 relative to the canopy socket assembly 708 during installation of the luminaire 702 into the canopy cover 704. During installation of the canopy luminaire 702 into the canopy socket assembly 708 mounted on the canopy cover 704, the luminaire 702, with its mating connector assembly 776, is inserted into the canopy socket assembly 708 as shown in Figure 18A in one of four orientations, spaced 90° apart, as described above. The mounting tabs 798 of the mating connector assembly 776 are free to move vertically upwardly within the respective vertical channels 724 formed in the annular side wall 720 of the housing 712 until the upper annular edge 807 of the mating connector assembly 776 abuts the lower horizontal faces (not shown) of the ribs 722 provided in the annular side wall 120 of the housing 712 of the canopy cap assembly 708 as described above. Once the upper annular edge 807 of the mating connector assembly 776 abuts the lower horizontal faces (not shown) of the ribs 722, the light fixture 702 with its mating connector assembly 776 is free to rotate relative to the canopy cap assembly 708 as shown in Figures 19A and 19B such that the ramped forward faces 704a of the mounting tabs 798 mate with a facing face 770a of a respective prong 766 provided on a bottom surface 779d of the lower annular spacer plate 761d (Figures 16A and 16B and 18A). As the luminaire 702 and its mating connector assembly 776 rotate further counterclockwise, the forward ramp faces 704a of the mounting tabs 798 cause the prongs 766, and thus the electric plunger 710, to move vertically upward to a raised position within the housing 712 against the bias of the springs 787 as the prongs 766 ride up the respective forward ramp faces 704a of the mounting tabs 798. In response to further rotation of the luminaire 702 and its mating connector assembly 776, the prongs 766 travel across the respective horizontal upper faces 900 of the mounting tabs 798 while the horizontal lower faces 902 of the mounting tabs 798 engage the respective horizontal projections 908 provided on the inner surface 718 of the housing 712 as shown in Figure 18B. Once sufficient rotation has occurred, e.g., about 30°, the prongs 766 descend the rear ramp faces 704b of the respective mounting tabs 798 as described above to lock the luminaire 702 into the canopy cap assembly 708 as shown in Figure 18B. In this locked position, the electric plunger 710 descends from its temporary raised position in response to downward force applied to the electric plunger 710 by the springs 787 such that the bottom surface 779d of the electric plunger 710, i.e., the bottom surface 779d of the lowermost annular spacer plate 761d, abuts the upper annular edge 807 of the mating connector assembly 776 of the luminaire 702 as shown in Figure 18B.Furthermore, in this locked position, each mounting lug 798 is trapped between a respective vertical side wall 716 (Figure 18A) of a respective vertical channel 724 of the housing 712 and a respective prong 766 engaged with a rear ramp face 704b of each mounting lug 798 as described in detail above. In the locked position as shown in Figures 18B and 19B, the electrical connector blades 705a-705c rotate in the respective annular horizontal channels 775 to thereby establish an electrical connection between each of the electrical connector blades 705a-705c and a respective annular electrical connector plate 763a-763c as shown in Figure 19B. Each of the canopy luminaire mounting systems 100, 300, 500 and 700 of the present invention, as described in detail above, provides the following advantages: (i) greater reliability and quality of lighting installation; (i) Reduced labor time and simplicity in luminaire installation; (iii) requires only one penetration hole through the canopy cover; (iv) eliminates the need to install the luminaire before making the electrical connections at the top of the canopy, allowing for flexibility in the workplace when making the electrical adjustment; and (v) eliminates the need to access the top of the canopy for maintenance and / or luminaire removal. While preferred embodiments have been described above with reference to the drawings, one skilled in the art will understand that these embodiments have been provided for illustrative purposes only and should in no way be construed as limiting the scope of the present invention which is defined by the claims.

Claims

1. A canopy luminaire mounting system, comprising: a canopy socket assembly configured to be mounted on a canopy structure; and a canopy luminaire having a coupling connector assembly configured to be received by the canopy socket assembly, wherein the canopy luminaire is detachably secured to the canopy socket assembly in response to relative rotation of the canopy luminaire and the canopy socket assembly.

2. The canopy luminaire mounting system according to claim 1, further characterized in that the canopy luminaire is detachably fixed to the canopy socket assembly in response to rotation of the canopy luminaire with respect to the canopy socket assembly.

3. The canopy luminaire mounting system according to claim 1, further characterized in that the canopy socket assembly is configured to be received in a canopy penetration hole formed in the canopy structure from a lower side of the canopy structure, and further wherein the canopy socket assembly includes a spring-locking mechanism that is configured to engage with the upper part of the canopy structure to retain the canopy socket assembly in the canopy penetration hole.

4. The canopy luminaire mounting system according to claim 3, further characterized in that it further comprises a locking ring fixed to the canopy socket assembly and configured to fit into the top of the canopy structure.

5. The canopy luminaire mounting system according to claim 4, further characterized in that it further comprises an outwardly directed radial annular flange provided next to one end of the canopy bushing assembly and an annular gasket disposed around the canopy bushing assembly and configured to be placed between the annular flange and the lower side of the canopy structure.

6. The canopy luminaire mounting system according to claim 1, further characterized in that the canopy socket assembly includes at least one electrical contact and the canopy luminaire coupling connector assembly includes at least one second electrical contact that cooperates with the at least one first electrical contact to establish an electrical connection between them.

7. The canopy luminaire mounting system according to claim 1, further characterized in that the canopy socket assembly includes at least one electrical contact and the canopy luminaire coupling connector assembly includes at least one second electrical contact that cooperates with the at least one first electrical contact to establish an electrical connection between them in response to the relative rotation of the canopy luminaire and the canopy socket assembly.

8. The canopy mounting luminaire system according to claim 6, further characterized in that the at least one first electrical contact comprises an electrical connector disposed at a remote end of a wiring harness and the at least one second electrical contact comprises an electrical socket that is configured to connect electrically with the electrical connector.

9. The canopy luminaire mounting system according to claim 3, further characterized in that the at least one first electrical contact comprises a plurality of first electrical contacts and the at least one second electrical contact comprises a plurality of second electrical contacts.

10. The canopy luminaire mounting system according to claim 7, further characterized in that at least one electrical contact is provided on an electrical plunger mounted for vertical movement within the canopy bushing assembly.

11. The canopy luminaire mounting system according to claim 10, further characterized in that the electric plunger is keyed to an inner surface of the canopy bushing assembly to prevent rotation of the electric plunger within the canopy bushing assembly.

12. The canopy luminaire mounting system according to claim 11, further characterized in that the electric plunger is vertically deflected with respect to the canopy bushing assembly by at least one spring mounted between the electric plunger and the canopy bushing assembly.

13. The canopy luminaire mounting system according to claim 1, further characterized in that it further comprises a piston mounted for vertical movement within the canopy bushing assembly.

14. The canopy luminaire mounting system according to claim 13, further characterized in that the plunger is keyed to an inner surface of the canopy bushing assembly to prevent rotation of the electric plunger within the canopy bushing assembly.

15. The canopy luminaire mounting system according to claim 14, further characterized in that the plunger is vertically deflected with respect to the canopy bushing assembly by at least one spring mounted between the plunger and the canopy bushing assembly.

16. The canopy luminaire mounting system according to claim 1, further characterized in that the coupling connector assembly includes an annular side wall and a plurality of mounting tabs extending radially outward from the annular side wall.

17. The canopy luminaire mounting system according to claim 16, further characterized in that the plurality of mounting tabs are configured to cooperate with an inner surface of the canopy socket assembly to detachably secure the canopy luminaire to the canopy socket assembly in response to relative rotation of the canopy luminaire and the canopy socket assembly.

18. The canopy luminaire mounting system according to claim 1, further characterized in that it additionally comprises a connector assembly supported by the coupling connector assembly.

19. The canopy luminaire mounting system according to claim 18, further characterized in that the connector assembly supports an electrical connector electrically coupled to the luminaire.

20. The canopy luminaire mounting system according to claim 18, further characterized in that the connector assembly supports a plurality of male electrical contacts.

21. The canopy luminaire mounting system according to claim 18, further characterized in that the connector base supports a plurality of spring-deflected connector pins.

22. The canopy luminaire mounting system according to claim 18, further characterized in that the connector base supports a plurality of electrical connector vanes.

23. The canopy luminaire mounting system according to claim 10, further characterized in that the electric plunger supports a plurality of female electrical contacts.

24. The canopy luminaire mounting system according to claim 10, further characterized in that the electric plunger supports a plurality of electric traces and / or electric pads.

25. The canopy luminaire mounting system according to claim 10, further characterized in that the electric piston supports a plurality of annular electrical connector plates. iviA / a / zuzz / uiii 26. A method for installing a canopy luminaire in a canopy structure, comprising: mounting a canopy socket assembly through a penetration hole in the canopy structure from a lower side of the canopy structure; and supporting the canopy socket assembly in the penetration hole by coupling a spring-locking mechanism attached to the canopy socket assembly with an upper portion of the canopy structure to retain the canopy socket assembly in the canopy penetration hole.

27. The method according to claim 26, further characterized in that it additionally comprises the step of attaching a locking ring to the canopy bushing assembly that attaches to the top of the canopy structure.

28. A method for installing a canopy luminaire in a canopy structure, comprising: mounting a canopy socket assembly through a penetration hole in the canopy structure from a lower side of the canopy structure; and inserting a canopy luminaire coupling connector assembly into the canopy socket assembly, wherein the canopy luminaire is detachably fixed to the canopy socket assembly in response to relative rotation of the canopy luminaire and the canopy socket assembly.

29. The method according to claim 28, further characterized in that the coupling connector assembly includes an annular side wall and a plurality of mounting tabs extending radially outward from the annular side wall.

30. The method according to claim 29, further characterized in that the plurality of mounting tabs cooperate with an inner surface of the canopy socket assembly to detachably secure the canopy luminaire to the canopy socket assembly in response to relative rotation of the canopy luminaire and the canopy socket assembly.

31. The method according to claim 29, further characterized in that the canopy socket assembly includes at least a first electrical contact and the canopy luminaire coupling connector assembly includes at least a second electrical contact that cooperates with the at least a first electrical contact to establish an electrical connection between them in response to the relative rotation of the canopy luminaire and the canopy socket assembly.

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