# US 2021/0172073 A1 · Selectively removable marine engine anode > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 2021/0172073 A1 - Document ID: US20210172073A1 - Status: Published application - Kind: A1 - Application number: 16/704,882 - Filed: 2019-12-05 - Published: 2021-06-10 - Earliest claimed: 2019-12-05 - Assignees: Zimar International, Inc. - Applicants: Zimar International, Inc. - Inventors: Jose Alegre; Juan Carlos Alegre - Web page: https://patentgrep.com/patent/US20210172073A1 ## CPC - C23F 13/005: {Anodic protection} - C23F 13/10: Electrodes characterised by the structure (C23F13/16 takes precedence) - C23F 13/18: Means for supporting electrodes - F02B 77/04: Cleaning of, preventing corrosion or erosion in, or preventing unwanted deposits in, combustion engines - C23F 2213/31: Immersed structures, e.g. submarine structures - Y02E 60/10: Energy storage using batteries - C23F: NON-MECHANICAL REMOVAL OF METALLIC MATERIAL FROM SURFACE (working metal by laser beams B23K26/00; desurfacing by applying flames B23K7/00; working of metal by electro-erosion B23H; producing decorative effects by removing surface material, e.g. by engraving, by etching, B44C1/22; electrolytic etching or polishing C25F); INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL; MULTI-STEP PROCESSES FOR SURFACE TREATMENT OF METALLIC MATERIAL INVOLVING AT LEAST ONE PROCESS PROVIDED FOR IN CLASS C23 AND AT LEAST ONE PROCESS COVERED BY SUBCLASS C21D OR C22F OR CLASS C25 - F02B: INTERNAL-COMBUSTION PISTON ENGINES; COMBUSTION ENGINES IN GENERAL (gas-turbine plants F02C; hot-gas or combustion-product positive-displacement engine plants F02G) - Y02E: REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION ## Abstract A selectively removable engine anode having a metallic anode base with a threaded configuration disposed proximal to a lower end thereon and on an outer surface, a flanged platform extending radially along a longitudinal length of the base to define an outer flange diameter, and a cantilevered retention member directly coupled to the flanged platform and having a diameter less than the outer flange diameter. The anode includes a galvanic anode with a first anode end coupled to the flanged platform, a second anode free end opposing the first anode end, and an anode length separating the first anode end and the second anode free end, wherein the galvanic anode and the flanged platform encapsulate the cantilevered retention member, the anode base is selectively removably couplable to a plug that is operably configured to be selectively coupled to a marine engine. ## Claims ### Claim 1 A selectively removable engine anode comprising: an anode base having a first end, a second end opposing the first end, a longitudinal length separating the first and second ends, a threaded configuration disposed proximal to the first end and on an outer surface of the anode base, a flanged platform extending radially along the longitudinal length to define an outer flange diameter, and a cantilevered retention member with first member end directly coupled to the flanged platform, including the second end of the anode base, and defining a retention member diameter less than the outer flange diameter; and a galvanic anode with a first anode end coupled to the flanged platform, a second anode free end opposing the first anode end, and an anode length separating the first anode end and the second anode free end, the galvanic anode and the flanged platform encapsulating the cantilevered retention member. ### Claim 2 (depends on 1) The selectively removable engine anode according to claim 1, wherein: the galvanic anode is of a cylindrical shape. ### Claim 3 (depends on 2) The selectively removable engine anode according to claim 2, wherein: the galvanic anode has a uniform diameter spanning the anode length. ### Claim 4 (depends on 3) The selectively removable engine anode according to claim 3, wherein: the outer flange diameter and the uniform diameter are substantially identical. ### Claim 5 (depends on 4) The selectively removable engine anode according to claim 4, wherein: the galvanic anode is substantially of at least one of a zinc material, an aluminum material, and a magnesium material. ### Claim 6 (depends on 1) The selectively removable engine anode according to claim 1, wherein the cantilevered retention member further comprises: a retention member length separating the first member end and the second end, wherein the second end is the terminal end of the cantilevered retention member; and an arcuate notch defined thereon along the retention member length, the arcuate notch having a portion of the galvanic anode disposed therein. ### Claim 7 (depends on 6) The selectively removable engine anode according to claim 6, wherein the cantilevered retention member further comprises: a distal portion continually tapering in diameter until reaching the terminal end of the cantilevered retention member. ### Claim 8 (depends on 7) The selectively removable engine anode according to claim 7, wherein the flanged platform further comprises: a lower surface and an upper surface opposing the lower surface and substantially planar. ### Claim 9 (depends on 1) The selectively removable engine anode according to claim 1, further comprising: an engine plug having a lower end, an upper end defining a plug aperture and opposing the lower end, a plug length separating the lower and upper ends of the engine plug, and defining and enclosing, with a plug inner sidewall surface, a plug channel spanning from the plug aperture into engine plug along the plug length, the engine plug having an outer threaded configuration disposed proximal to the upper end of the engine plug and on an outer surface of the engine plug and having an inner threaded configuration disposed proximal to the upper end of the engine plug and on the plug inner sidewall surface, the inner threaded configuration of the engine plug selectively removably coupled to the threaded configuration of the anode base and the outer threaded configuration of the engine plug operably configured to be selectively removably couplable to a threaded engagement on a marine engine. ### Claim 10 (depends on 9) The selectively removable engine anode according to claim 9, wherein the anode base further comprises: an attachment portion with the threaded configuration disposed thereon, including an upper end disposed proximal to the flanged platform, including the first end, and defining an attachment length separating the first end and the upper end of the attachment portion, wherein the plug channel only partially spans the plug length and is of a length greater than the attachment length. ### Claim 11 (depends on 10) The selectively removable engine anode according to claim 10, wherein the engine plug further comprises: a polygonal nut disposed proximal to the lower end of the engine plug and surrounding the attachment portion. ### Claim 12 A selectively removable engine anode comprising: an anode base of a substantially rigid metallic material having a first end, a second end opposing the first end, a longitudinal length separating the first and second ends, a threaded configuration disposed proximal to the first end and on an outer surface of the anode base, a platform disposed on the longitudinal length, and a cantilevered retention member: extending upwardly from the platform; with the second end of the anode base; with a retention member length separating the second end and the platform, wherein the second end is the terminal end of the cantilevered retention member; and defining an arcuate notch defined thereon along the retention member length; and a galvanic anode with a second anode free end and surrounding and directly coupled to the cantilevered retention member, the arcuate notch having a portion of the galvanic anode disposed therein. ### Claim 13 (depends on 12) The selectively removable engine anode according to claim 12, wherein the platform further comprises: a flanged portion spanning circumferentially and extending radially along the longitudinal length of the anode base to define an outer flange diameter, wherein the cantilevered retention member includes a first member end directly coupled to the flanged portion of the platform and defines a retention member diameter less than the outer flange diameter. ### Claim 14 (depends on 13) The selectively removable engine anode according to claim 13, wherein the galvanic anode further comprises: a first anode end coupled to the flanged platform and opposing the second anode free end and having an anode length separating the first anode end and the second anode free end, the galvanic anode and the flanged platform encapsulating the cantilevered retention member. ### Claim 15 (depends on 14) The selectively removable engine anode according to claim 14, further comprising: an engine plug having a lower end, an upper end defining a plug aperture and opposing the lower end, a plug length separating the lower and upper ends of the engine plug, and defining and enclosing, with a plug inner sidewall surface, a plug channel spanning from the plug aperture into engine plug along the plug length, the engine plug having an outer threaded configuration disposed proximal to the upper end of the engine plug and on an outer surface of the engine plug and having an inner threaded configuration disposed proximal to the upper end of the engine plug and the plug inner sidewall surface, the inner threaded configuration of the engine plug selectively removably coupled to the threaded configuration of the anode base and the outer threaded configuration of the engine plug operably configured to be selectively removably couplable to a threaded engagement on a marine engine. ### Claim 16 (depends on 15) The selectively removable engine anode according to claim 15, wherein the anode base further comprises: an attachment portion with the threaded configuration disposed thereon, including an upper end disposed proximal to the flanged platform, including the first end, and defining an attachment length separating the first end and the upper end of the attachment portion, wherein the plug channel only partially spans the plug length and is of a length greater than the attachment length. ### Claim 17 (depends on 16) The selectively removable engine anode according to claim 16, wherein the engine plug further comprises: a polygonal nut disposed proximal to the lower end of the engine plug and surrounding the attachment portion. ### Claim 18 (depends on 1) The selectively removable engine anode according to claim 1, wherein: the galvanic anode is of a cylindrical shape and has a uniform diameter spanning the anode length.