# US 8,465,179 B2 · LED lighting device > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 8,465,179 B2 - Document ID: US8465179B2 - Status: Granted - Kind: B2 - Application number: 13/107,389 - Filed: 2011-05-13 - Published: 2012-01-19 - Granted: 2013-06-18 - Earliest claimed: 2008-05-01 - Assignees: CAO Group, Inc. - Applicants: Stan Thurgood; Jim Malfitano; Lijian Geng - Inventors: Stan Thurgood; Jim Malfitano; Lijian Geng - Web page: https://patentgrep.com/patent/US8465179B2 ## CPC - F21V 19/0015: {Fastening arrangements intended to retain light sources} - F21K 9/232: specially adapted for generating an essentially omnidirectional light distribution, e.g. with a glass bulb - F21K 9/238: Arrangement or mounting of circuit elements integrated in the light source - F21V 19/04: with provision for changing light source, e.g. turret {(auxiliary devices for cleaning, placing, or removing incandescent lamps H01K3/32, fluorescent lamps H01J9/006)} - F21V 23/006: {the substrate being distinct from the light source holder} - F21V 23/002: {Arrangements of cables or conductors inside a lighting device, e.g. means for guiding along parts of the housing or in a pivoting arm} - F21Y 2107/40: on the sides of polyhedrons, e.g. cubes or pyramids - 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 - F21K: NON-ELECTRIC LIGHT SOURCES USING LUMINESCENCE; LIGHT SOURCES USING ELECTROCHEMILUMINESCENCE; LIGHT SOURCES USING CHARGES OF COMBUSTIBLE MATERIAL; LIGHT SOURCES USING SEMICONDUCTOR DEVICES AS LIGHT-GENERATING ELEMENTS; LIGHT SOURCES NOT OTHERWISE PROVIDED FOR - 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 The present invention is a light generation device utilizing higher efficiency LED's while also allowing for interface with current lighting interfaces. The LED's are replaceable in the unit and may be interchanged with other LED's to affect lighting mood and style or simply for replacement in the event an LED ceases to function. ## Claims ### Claim 1 A lighting device having a plurality of replaceable LEDs, comprising: a heat dissipating body having a first end and a second end spaced from the first end; a screw-base interface configured for attachment to the first end of the heat dissipating body and further configured to attach to and receive electrical power from a standard Edison-type socket; an electrically insulative member positioned between the screw-base and the first end of the heat dissipating body; a cap member having an outer surface extending between a base region and a second region spaced from the base region, the base region being configured for attachment to the second end of the dissipative body, the cap member having a plurality of apertures spaced about the outer surface; a plurality of inserts, one insert positioned within each aperture and configured to receive a socket base; a plurality of socket bases, one socket base positioned within each insert; and a plurality of LEDs, one LED removably threaded into each socket. ### Claim 2 (depends on 1) The lighting device of claim 1, further comprising a circuit board configured to receive alternating current from the screw-base and provide direct current to the plurality of LEDs. ### Claim 3 (depends on 1) The lighting device of claim 1, wherein the heat dissipating body comprises a cylindrical outer surface and a plurality of cooling fins spaced on the cylindrical outer surface. ### Claim 4 (depends on 1) The lighting device of claim 1, further comprising three sets of apertures, inserts, socket bases and LEDs grouped together and spaced equally about the outer surface of the cap member. ### Claim 5 A lighting device, comprising: a heat dissipating body having a first end and a second end spaced from the first end; a screw-base configured for attachment to the first end of the heat dissipating body and further configured to attach to and receive electrical power from an electric socket; a cap member having an outer surface extending between a base region and a second region spaced from the base region, the base region being configured for attachment to the second end of the dissipative body; at least one aperture on the outer surface of the cap member; a socket base extending through the aperture; and a replaceable LED attached to the socket base, wherein the LED includes a threaded base sized and configured for threading attachment to the socket base. ### Claim 6 (depends on 5) The lighting device of claim 5, further comprising a control circuit board located at least partially within the heat dissipating body and electrically connected to the screw-base. ### Claim 7 (depends on 6) The lighting device of claim 6, wherein the control circuit board is further electrically connected to the socket base. ### Claim 8 (depends on 7) The lighting device of claim 7, wherein the socket base is configured to remain electrically connected to the control circuit board when the LED is removed through the threading attachment to the socket base. ### Claim 9 A light source device, comprising: a heat dissipating body having a first end and a second end spaced from the first end, the heat dissipating body having a plurality of cooling fins extending outwardly; a screw-base interface attached to the first end of the heat dissipating body and configured to attach to and receive electrical power from a standard Edison-type socket; an electrically insulative member positioned between the screw-base imd the first end of the neat dissipating body; a cap member having an outer surface that has a substantially cone/conical shape that is truncated extending between a base region and a second region spaced from the base region, the base region being attached to the second end of the dissipative body; a plurality of apertures spaced about the outer surface of the cap member; a plurality of inserts, one insert positioned within each aperture; a plurality of socket bases, one socket base positioned within each insert; a plurality of LEDs, one LED positioned at least partially within each socket base; and a circuit board positioned at least partially within the heat dissipating body and configured to receive alternating current from the screw-base and provide direct current to the plurality of LEDs. ### Claim 10 (depends on 9) The lighting device of claim 9, wherein the cap member comprises a plurality of facets facing different directions and wherein each set of apertures, inserts, socket bases and LEDs is positioned on a corresponding separate facet. ### Claim 11 (depends on 10) The lighting device of claim 10, wherein at least one socket base is electrically connected to the circuit board. ### Claim 12 (depends on 11) The lighting device of claim 11, wherein the plurality of LEDs are removeably positioned within the corresponding plurality of socket bases. ### Claim 13 (depends on 12) The lighting device of claim 12, wherein the plurality of LEDs are positioned to emit light in more than one direction.