# US 12,009,650 B1 · Apparatus for an electric feedthrough for high temperature, high pressure, and highly corrosive environments > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 12,009,650 B1 - Document ID: US12009650B1 - Status: Granted - Kind: B1 - Application number: 18/388,296 - Filed: 2023-11-09 - Granted: 2024-06-11 - Earliest claimed: 2023-11-09 - Assignees: First Ammonia Motors, Inc. - Applicants: First Ammonia Motors, Inc. - Inventors: James L. Wall, II - Web page: https://patentgrep.com/patent/US12009650B1 ## CPC - H02G 3/22: Installations of cables or lines through walls, floors or ceilings, e.g. into buildings - F16L 5/10: by using sealing rings or sleeves only - H01B 17/26: Lead-in insulators; Lead-through insulators - H02G: INSTALLATION OF ELECTRIC CABLES OR LINES, OR OF COMBINED OPTICAL AND ELECTRIC CABLES OR LINES - F16L: PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL - H01B: CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES (selection for magnetic properties H01F1/00; waveguides H01P {; printed circuits H05K}) ## Abstract The present invention relates, in general, to an apparatus for an electrical power feedthrough suitable for use in high temperature, high pressure, and/or corrosive environments, such as, for example, within ammonia cracking (i.e., dissociation) systems. The present invention is fabricated from conductive nickel alloys which have high melting temperatures, and which are resistant to corrosion at high temperatures, as well as non-conductive ceramic materials which provide electrical insulation between the systems that feedthrough is coupled to. ## Claims ### Claim 1 An electric feedthrough for conducting electric currents, comprising: a pass-thru stud having a seat located between first and second threaded distal ends; a first pair of nickel alloy washers disposed between a first pair of threaded nuts disposed on the first threaded distal end of the pass-thru stud; a plug disposed on the pass-thru stud, the plug having an aperture and a threaded portion; an insulating sleeve disposed within the aperture; a counterbore washer disposed on the pass-thru stud adjacent to the threaded portion of the plug; a second pair of nickel alloy washers disposed on the pass-thru stud and located within the counterbore washer; a first ceramic washer disposed on the pass-thru stud between the counterbore washer and the seat; a third pair of nickel alloy washers disposed between a second pair of threaded nuts disposed on the second threaded distal end of the pass-thru stud; a second ceramic washer disposed on the pass-thru stud between a pair of metallic washers; and a body disposed on the pass-thru stud, the body covering the second ceramic washer, the pair of metallic washers, the seat of the pass-thru stud, the first ceramic washer, the counterbore washer, and the second pair of nickel allow washers, wherein the body has internal threading which couples to the threaded portion of the plug. ### Claim 2 (depends on 1) The electric feedthrough of claim 1, wherein the first and second pair of nickel alloy washers are made from an alloy of nickel containing chromium and iron. ### Claim 3 (depends on 1) The electric feedthrough of claim 1, wherein the pair of metallic washers are made from silver. ### Claim 4 (depends on 1) The electric feedthrough of claim 1, wherein the pair of metallic washers are made from vermiculite. ### Claim 5 (depends on 1) The electric feedthrough of claim 1, wherein the second threaded distal end of the pass-thru stud is capable of insertion into an aperture of a pressure vessel. ### Claim 6 (depends on 1) The electric feedthrough of claim 1, wherein a conductor delivering current from an external power source is secured between the first pair of nickel alloy washers. ### Claim 7 (depends on 1) The electric feedthrough of claim 1, wherein the first and second ceramic washers are made from silicon nitride. ### Claim 8 (depends on 5) The electric feedthrough of claim 5, wherein the pressure vessel is an electric catalyst unit. ### Claim 9 An electric feedthrough for conducting electric currents in a high temperature, high pressure, and highly corrosive environment, comprising: a pass-thru stud having a seat with a first face and a second face; a first ceramic washer disposed on the pass-thru stud adjacent the first face of the seat; a counterbore washer disposed on the pass-thru stud adjacent the ceramic washer; a pair of washers made from an alloy of nickel containing chromium and iron located within the counterbore washer; a plug disposed on the pass-through stud adjacent to the counterbore washer, the plug having a threaded portion; a second ceramic washer located between a pair of metallic washers disposed on the pass-thru stud adjacent the second face of the seat; and a body having internal threading, the internal threading capable of coupling to the threaded portion of the plug. ### Claim 10 (depends on 9) The electric feedthrough of claim 9, wherein the pair of metallic washers are made from silver. ### Claim 11 (depends on 9) The electric feedthrough of claim 9, wherein the pair of metallic washers are made from vermiculite. ### Claim 12 (depends on 9) The electric feedthrough of claim 9, wherein a sealed environment is formed when the internal threading of the body is coupled to the threaded portion of the plug. ### Claim 13 (depends on 9) The electric feedthrough of claim 9, wherein the pass-thru stud further comprises first and second distal ends, the first and second distal ends each capable of coupling to a conductor. ### Claim 14 (depends on 9) The electric feedthrough of claim 9, wherein the pass-thru stud is capable of insertion into an aperture of a pressure vessel. ### Claim 15 (depends on 14) The electric feedthrough of claim 14, wherein the pressure vessel is an electric catalyst unit. ### Claim 16 An electric feedthrough for conducting electric currents in a high temperature, high pressure, and highly corrosive environment, comprising: a pass-thru stud having a seat with a first face and a second face; a first ceramic washer disposed on the pass-thru stud adjacent the first face of the seat; a counterbore washer disposed on the pass-thru stud adjacent the ceramic washer; a pair of washers made from an alloy of nickel containing chromium and iron located within the counterbore washer; a plug disposed on the pass-through stud adjacent to the counterbore washer, the plug having a threaded portion; a second ceramic washer located between a pair of silver washers disposed on the pass-thru stud adjacent the second face of the seat; and a body having internal threading, the internal threading capable of coupling to the threaded portion of the plug. ### Claim 17 (depends on 16) The electric feedthrough of claim 16, wherein a sealed environment is formed when the internal threading of the body is coupled to the threaded portion of the plug. ### Claim 18 (depends on 16) The electric feedthrough of claim 16, wherein the pass-thru stud further comprises first and second distal ends, the first and second distal ends each capable of coupling to a conductor. ### Claim 19 (depends on 16) The electric feedthrough of claim 16, wherein the pass-thru stud is capable of insertion into an aperture of a pressure vessel. ### Claim 20 (depends on 19) The electric feedthrough of claim 19, wherein the pressure vessel is an electric catalyst unit.