# US 10,309,163 B2 · Pipe coupling > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 10,309,163 B2 - Document ID: US10309163B2 - Status: Granted - Kind: B2 - Application number: 14/891,359 - Filed: 2014-05-16 - Published: 2016-03-24 - Granted: 2019-06-04 - Earliest claimed: 2013-05-17 - Assignees: Morph Packers Limited - Applicants: Meta Downhole Limited - Inventors: Peter Wood; Daniel O'Brien - Web page: https://patentgrep.com/patent/US10309163B2 ## CPC - E21B 17/046: with ribs, pins, or jaws, and complementary grooves or the like, e.g. bayonet catches - E21B 17/042: Threaded - E21B 17/043: with locking means - F16L 13/141: {by crimping or rolling from the outside} - F16L 13/147: {by radially expanding the inner part (F16L13/168 takes precedence)} - E21B: EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS - F16L: PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL ## Abstract A coupling system between tubulars such as tubing, pipes, casing and liner for location in a well bore in which profiled sections (46, 50) on the tubulars (12, 14) are connected using a radially applied force to form a metal to metal sealed connection. Embodiments are provided in which the profiled sections are grooved and/or tapered, additional profiles are provided to prevent relative rotation of the tubulars, the radial force is applied inwardly, outwardly or in both directions, and a connector is used as an additional tubular member to form the coupling. ## Claims ### Claim 1 A non-threaded coupling system between first and second tubular members comprising: a first tubular member having a first end with an inner surface and an outer surface, a first profiled section extending circumferentially and continuously around the outer surface and the inner surface being co-linear with a central axis of the coupling system; a second tubular member having a first end with an inner surface and an outer surface, a second profiled section extending circumferentially and continuously around the inner surface, the outer surface being co-linear with a central axis of the coupling system; the first end of the first tubular member being inserted within the first end of the second tubular member so that the profiled sections are coaxial and by application of a force applied radially inwards on a surface opposite a profiled section in a direction orthogonal to the central axis, creating a metal to metal seal between the tubular members at the profiled sections. ### Claim 2 (depends on 1) A non-threaded coupling system according to claim 1 wherein the first and second tubular members have the same outer diameter and inner diameter. ### Claim 3 (depends on 1) A non-threaded coupling system according to claim 1 wherein the first profiled section comprises one or more circumferential grooves formed on the outer surface of the first end. ### Claim 4 (depends on 3) A non-threaded coupling system according to claim 3 wherein the first profiled section comprises a plurality of circumferential grooves formed on the outer surface of the first end and a continuous annular rim is formed between each pair of grooves. ### Claim 5 (depends on 4) A non-threaded coupling system according to claim 4 wherein grooves are formed on the first and second profiled sections and each groove on the first and second profiled section is arranged to mate with a rim on the opposing second and first profiled section, respectively. ### Claim 6 (depends on 1) A non-threaded coupling system according to claim 1 wherein the second profiled section comprises one or more circumferential grooves formed on the inner surface of the first end. ### Claim 7 (depends on 1) A non-threaded coupling system according to any claim 1 wherein the first profiled section is a reverse of the second profiled section so that the sections perfectly mate causing an interference fit when the force is applied. ### Claim 8 (depends on 1) A non-threaded coupling system according to any claim 1 wherein the first profiled section is tapered. ### Claim 9 (depends on 1) A non-threaded coupling system according to claim 1 wherein the second profiled section is tapered. ### Claim 10 (depends on 1) A non-threaded coupling system according to claim 1 wherein the first tubular member includes a third profiled section at an end face and the second tubular member includes a fourth profiled section at an end face wherein the third and fourth profiled sections mate to prevent relative rotation of the tubular members. ### Claim 11 (depends on 10) A non-threaded coupling system according to claim 10 wherein the third profiled section comprises at least one lug on the end face and the fourth profiled section comprises at least one notch, each notch being sized to receive a lug when the force is applied. ### Claim 12 (depends on 10) A non-threaded coupling system according to claim 10 wherein the fourth profiled section comprises at least one lug on the end surface and the third profiled section comprises at least one notch. ### Claim 13 (depends on 1) A non-threaded coupling system according to claim 1 wherein the second tubular member is a connector.