# US 2019/0170337 A1 · Portable flashlight for underwater use > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 2019/0170337 A1 - Document ID: US20190170337A1 - Status: Published application - Kind: A1 - Application number: 16/094,611 - Filed: 2016-12-16 - Published: 2019-06-06 - Earliest claimed: 2016-04-18 - Inventors: Norbert SCHLAFER - Web page: https://patentgrep.com/patent/US20190170337A1 ## CPC - F21V 25/04: breaking the electric circuit - F21L 4/08: characterised by means for in situ recharging of the batteries or cells - F21V 23/04: the elements being switches (safety devices F21V25/00) - F21V 23/0414: {specially adapted to be used with portable lighting devices} - F21V 31/00: Gas-tight or water-tight arrangements - H02J 7/70: characterised by the mechanical construction - H02J 7/731: {specially adapted for holding portable devices containing batteries (H02J7/751 takes precedence)} - H02J 7/751: {concerning the insertion or the connection of the batteries} - H05B 47/105: in response to determined parameters - 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 - F21L: LIGHTING DEVICES OR SYSTEMS THEREOF, BEING PORTABLE OR SPECIALLY ADAPTED FOR TRANSPORTATION - H02J: ELECTRIC POWER NETWORKS; CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY - H05B: ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL - 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 object of the invention relates to a Portable flashlight for underwater use, which flashlight (10) has a waterproof casing (12), a rechargeable battery (14) arranged within it, a light source (15), as well as at least one charging connection (16, 16p, 16n) arranged on the external surface of the casing (12) and electrically isolated from the casing (12), and a first electric circuit (A1) is provided for ensuring electric connection between the rechargeable battery (14) and the at least one charging connection (16), and a second electric circuit (A2) is provided for ensuring electric connection between the rechargeable battery (14) and the light source (15). The portable flashlight comprises a charging switching unit (22) that has—a first switch (K11) connected to the first circuit (A1) for breaking the first circuit (A1) in a first position and for closing the first circuit (A1) in a second position, and—a charging switch controller (29) for controlling the first switch (K11) with the help of a first magnet (104) being outside the casing (12). ## Claims ### Claim 1 Portable flashlight for underwater use, which flashlight (10) has a waterproof casing (12), a rechargeable battery (14) arranged within it, a light source (15), as well as at least one charging connection (16, 16p, 16n) arranged on the external surface of the casing (12) and electrically isolated from the casing (12), and a first electric circuit (A1) is provided for ensuring electric connection between the rechargeable battery (14) and the at least one charging connection (16), and a second electric circuit (A2) is provided for ensuring electric connection between the rechargeable battery (14) and the light source (15) characterised by that it comprises a charging switching unit (22) that has a first switch (K11) connected to the first circuit (A1) for breaking the first circuit (A1) in a first position and for closing the first circuit (A1) in a second position, and a charging switch controller (29) for controlling the first switch (K11) with the help of a first magnet (104) being outside the casing (12). ### Claim 2 (depends on 1) Flashlight according to claim 1, characterised by that a first control circuit (V1) is established between the two contacts (16p′, 16n′) of the at least one charging connection (16), and the charging switch controller (29) comprises: a first magnetic switch (24) connected into the first control circuit (V1), and controlled by the first magnet (104) being outside the casing (12), the first magnetic switch (24) being provided for breaking the first control circuit (V1) in a first position and closing the first control circuit (V1) in a second position, and a first switch controller (26a), preferably formed as an electromagnet (26a′), connected into the first control circuit (V1) for switching the first switch (K11) from the first position to the second position. ### Claim 3 (depends on 2) Flashlight according to claim 2, characterised by that the first magnetic switch (24) is a reed relay or Hall sensor, and the charging switch controller (29) contains the first magnet (104) being outside the casing (12). ### Claim 4 (depends on 2, 3) Flashlight according to claim 2 or 3, characterised by that the charging switching unit (22) contains a first relay (26) with a performance of at least 30 watts, and the first switch controller (26a) and the first switch (K11) form a part of the first relay (26). ### Claim 5 (depends on 1) Flashlight according to claim 1, characterised by that the first switch (K11) of the charging switching unit (22) is a part of the first magnetic switch (24), preferably a reed relay or Hall sensor, and the charging switch controller (29) contains the first magnet (104) being outside the casing (12). ### Claim 6 (depends on 1, 2, 3, 4, 5) Flashlight according to any of claims 1 to 5, characterised by that it contains a disconnectable and reconnectable charging unit (102) suitable for charging the rechargeable battery (14) via the at least one charging connection (16), and the first magnet (104) is arranged in the charging unit (102). ### Claim 7 (depends on 1) Flashlight according to claim 1, characterised by that it contains an operating switching unit (23) that has a second switch (K21) connected into the second circuit (A2) for breaking the second circuit (A2) in a first position and for closing it in a second position, and an operating switch controller (30) controlling the second switch (K21) with the help of a second magnet (105) being outside the casing (12). ### Claim 8 (depends on 7) Flashlight according to claim 7, characterised by that it contains a disconnectable and reconnectable charging unit (102) suitable for charging the rechargeable battery (14) via the at least one charging connection (16), and the first magnet (104) is arranged in the charging unit (102), and the charging unit (102) is formed as a docking unit, which can be connected to the flashlight in the case that the second magnet (105) being outside the casing (12) is removed from the casing (12). ### Claim 9 (depends on 2, 3, 4) Flashlight according to any of claims 2 to 4, characterised by that it contains an operating switching unit (23) that has a second switch (K21) connected into the second circuit (A2) for breaking the second circuit (A2) in a first position and for closing it in a second position, and an operating switch controller (30) controlling the second switch (K21) using the second magnet (105) being outside the casing (12). ### Claim 10 (depends on 9) Flashlight according to claim 9, characterised by that it contains a disconnectable and reconnectable charging unit (102) suitable for charging the rechargeable battery (14) via the at least one charging connection (16), and the first magnet (104) is arranged in the charging unit (102), and the charging unit (102) is formed as a docking unit, which can be connected to the flashlight in the case that the second magnet (105) outside the casing (12) is removed from the casing (12). ### Claim 11 (depends on 9, 10) Flashlight according to claim 9 or 10, characterised by that a control circuit (V2) is formed between the two poles of the rechargeable battery (14), and the operating switch controller (30) contains: a second magnetic switch (25) connected into the second control circuit (V2), controlled by a second magnet (105) being outside the casing (12) for breaking the second control circuit (V2) in a first position and for closing it in a second position, and a second switching controller (27a)—preferably formed as a second electromagnet (27a′)—connected into the second control circuit (V2) and controlled by the second magnetic switch (25), for switching the second switch (K21) from the first position to the second position. ### Claim 12 (depends on 11) Flashlight according to claim 11, characterised by that the second magnetic switch (25) is a reed relay or Hall sensor, and the operating switch controller (30) contains the second magnet (105) being outside of the casing (12). ### Claim 13 (depends on 11, 12) Flashlight according to claim 11 or 12, characterised by that the operating switching unit (23) contains a second relay (27) with a performance of at least 30 watts, and the second switching controller (27a) and the second switch (K21) are parts of the second relay (27). ### Claim 14 (depends on 11, 12, 13) Flashlight according to any of claims 11 to 13, characterised by that the charging switching unit (22) contains a first auxiliary switch (K12) inserted in the second control circuit (V2), breaking the second control circuit (V2) in a first position, and closing it in a second position, and the first auxiliary switch (K12) is controlled by the charging switch controller (29) connected into the first control circuit (V1). ### Claim 15 (depends on 14) Flashlight according to claim 14, characterised by that the charging switching unit (22) contains a first relay (26) with a performance of at least 30 watts, and the first switch controller (26a), the first switch (K11) and the first auxiliary switch (K12) form a part of the first relay (26). ### Claim 16 (depends on 11, 12, 13, 14, 15) Flashlight according to any of claims 11 to 15, characterised by that the operating switching unit (23) contains a second auxiliary switch (K22) inserted in the first control circuit (V1) breaking the first control circuit (V1) in a first position and closing it in a second position and the second auxiliary switch (K22) is controlled by the operating switch controller (30) connected into the second control circuit (V2). ### Claim 17 (depends on 16) Flashlight according to claim 16, characterised by that the operating switching unit (23) contains a second relay (27) with a performance of at least 30 watts, and the second switching controller (27a), the second switch (K21) and the second auxiliary switch (K22) form a part of the second relay (27). ### Claim 18 (depends on 7, 8, 9, 10) Flashlight according to any of claims 7 to 10, characterised by that the second switch (K21) of the operating switching unit (23) is a part of a second magnetic switch (25), preferable a reed relay or a Hall sensor, and the operating switch controller (30) contains the second magnet (105) being outside of the casing (12). ### Claim 19 (depends on 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18) Flashlight according to any of claims 1 to 18, characterised by that the light source (15) is an LED, preferably a High Power LED and/or COB LED. ### Claim 20 (depends on 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19) Flashlight according to any of claims 1 to 19, characterised by that the waterproof casing (12) contains a frame (12a) and a light-transmitting region (12b) that permits at least a part of visible light to pass through it. ### Claim 21 (depends on 20) Flashlight according to claim 20, characterised by that the light-transmitting region (12b) is plate acrylic glass or plate glass. ### Claim 22 (depends on 20, 21) Flashlight according to claim 20 or 21, characterised by that the frame (12a) preferably has a cylindrical mantle shape and is made from anodised aluminium coated with a plastic film.