# US 9,039,256 B2 · LED lamp with cover having through holes > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 9,039,256 B2 - Document ID: US9039256B2 - Status: Granted - Kind: B2 - Application number: 13/971,855 - Filed: 2013-08-21 - Published: 2014-10-02 - Granted: 2015-05-26 - Earliest claimed: 2013-03-26 - Assignees: Hon Hai Precision Industry Co., Ltd. - Applicants: Hon Hai Precision Industry Co., Ltd. - Inventors: Te-Yuan Kung - Web page: https://patentgrep.com/patent/US9039256B2 ## CPC - F21K 9/23: Retrofit light sources for lighting devices with a single fitting for each light source, e.g. for substitution of incandescent lamps with bayonet or threaded fittings - F21K 9/60: Optical arrangements integrated in the light source, e.g. for improving the colour rendering index or the light extraction - F21V 3/02: characterised by the shape - F21V 11/14: with many small apertures - F21V 29/506: of globes, bowls or cover glasses - F21K 9/238: Arrangement or mounting of circuit elements integrated in the light source - F21K 9/90: Methods of manufacture - F21V 3/06: characterised by the material - 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} - F21V 23/006: {the substrate being distinct from the light source holder} - F21Y 2115/10: Light-emitting diodes [LED] - 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 - F21V: FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, 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 An LED lamp includes a base, a head connected to the base, an LED mounted on the base and a cover fixed on the base and covering the LED. The cover is made of metal and defines a plurality of through holes therein. ## Claims ### Claim 1 An LED (light emitting diode) lamp comprising: a head; a base connected to the head; an LED mounted on the base; and a cover fixed on the base and covering the LED, the cover defining a plurality of through holes therein; wherein the through holes are arranged in a plurality of rows along a height direction of the cover, and a number of the through holes firstly increases and then decreases from a top row towards a bottom row of the through holes. ### Claim 2 (depends on 1) The LED lamp of claim 1, wherein the cover is made of opaque material. ### Claim 3 (depends on 1) The LED lamp of claim 1, wherein the cover is made of metal. ### Claim 4 (depends on 1) The LED lamp of claim 1, wherein the LED is located lower than a bottom row of the through holes. ### Claim 5 (depends on 1) The LED lamp of claim 1, wherein each of the through holes is circular. ### Claim 6 (depends on 1) The LED lamp of claim 1, wherein the cover comprises a housing and a flange extending downwardly from the housing, the through holes being defined in the housing. ### Claim 7 (depends on 6) The LED lamp of claim 6, wherein the housing comprises a hemispherical upper portion and a conical lower portion, the lower portion gradually expanding from the flange towards the upper portion of the housing. ### Claim 8 (depends on 6) The LED lamp of claim 6, wherein the base comprises a plate supporting the LED and a sleeve extending downwardly from the plate, the flange of the cover surrounding an outer circumferential face of the sleeve. ### Claim 9 (depends on 8) The LED lamp of claim 8, wherein an inner circumferential face of the flange interferingly abuts against the outer circumferential face of the sleeve. ### Claim 10 (depends on 8) The LED lamp of claim 8, wherein the base further comprises an annular protrusion formed on the outer circumferential face of the sleeve, a bottom of the flange abutting against a top face of the annular protrusion. ### Claim 11 (depends on 10) The LED lamp of claim 10, wherein the top face of the annular protrusion is parallel to the plate, the annular protrusion has an inclined bottom face directly connecting the outer circumferential face of the sleeve. ### Claim 12 (depends on 8) The LED lamp of claim 8, wherein the base further comprises a ring formed on a bottom of the sleeve, the ring being inserted to the head. ### Claim 13 (depends on 12) The LED lamp of claim 12, wherein the ring, the sleeve and the plate cooperative enclose a chamber in the base, a drive module being received in the chamber. ### Claim 14 (depends on 12) The LED lamp of claim 12, wherein the head comprises a wall, a connecting tip and an insulative band interconnecting the wall and the connection tip, the wall of the head surrounding the ring of the base. ### Claim 15 (depends on 14) The LED lamp of claim 14, wherein an outer thread is formed on an outer circumferential face of the ring of the base, and an inner thread is formed on an inner circumferential face of the wall of the head, the outer thread interferingly engaging with the inner thread. ### Claim 16 (depends on 1) The LED lamp of claim 1, wherein the LED lamp is an LED light bulb.