# US 2019/0170280 A1 · Torque Retention Arrangement > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 2019/0170280 A1 - Document ID: US20190170280A1 - Status: Published application - Kind: A1 - Application number: 16/273,467 - Filed: 2019-02-12 - Published: 2019-06-06 - Earliest claimed: 2014-02-07 - Assignees: Barnes Group Inc. - Applicants: Barnes Group Inc. - Inventors: John R. Otto - Web page: https://patentgrep.com/patent/US20190170280A1 ## CPC - F16L 23/036: characterised by the tensioning members, e.g. specially adapted bolts or C-clamps - F16B 31/028: {with a load-indicating washer or washer assembly} - F16B 31/04: for maintaining {a} tensile load - F16B 39/24: by means of washers, spring washers, or resilient plates that lock against the object (locking to the screw-thread F16B39/14 {, F16B39/34}, F16B39/36) - F16B 43/00: Washers or equivalent devices; Other devices for supporting bolt-heads or nuts (circlips F16B21/18; {for indicating tensile load F16B31/02; forming a whole with the bolt or nut F16B33/00; locking bolts or nuts by means of a fixed plate or ring, or washer-like resilient plates F16B39/10, F16B39/24}) - F16B 43/001: {for sealing or insulation} - F16L 23/24: specially adapted for unequal expansion of the parts of the joint - Y10T 29/49948: Multipart cooperating fastener [e.g., bolt and nut] - F16L: PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL - F16B: DEVICES FOR FASTENING OR SECURING CONSTRUCTIONAL ELEMENTS OR MACHINE PARTS TOGETHER, e.g. NAILS, BOLTS, CIRCLIPS, CLAMPS, CLIPS OR WEDGES; JOINTS OR JOINTING (couplings for transmitting rotation F16D) - Y10T: TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION ## Abstract A torque retention arrangement for a flange bolt connector for use with pipe. The torque retention arrangement a carrier body and a plurality of springs. The carrier body can include a plurality of spring holes equi-spaced around a circumference. A plurality of springs in a vertical stack can be mounted in each of the plurality of spring holes in the carrier. Each spring is in a convex orientation in a pre-torque condition and is in a planar orientation in a post-torque condition. ## Claims ### Claim at position 1 1-27. (canceled) ### Claim 28 A method for facilitating in the connecting together of two flanges, said method comprising: a. providing a first flange; b. providing a flange connection interface; c. providing a torque retention arrangement, said torque retention arrangement including: a carrier having a first side and a second side opposite from and spaced from said first side, said carrier includes a plurality of through spring holes spaced around a circumference of said carrier; a first set of springs stacked within a first spring hole of said carrier, said first set of springs including first and second springs, each of said springs in said first set of springs is aligned in a vertical arrangement so as to be able to receive a first bolt therethrough, said first spring in said first set of springs is configured to be non-coplanar with said carrier in a pre-torque orientation and a plurality of said springs in said first set of springs are configured to be coplanar with said carrier in a loaded and torqued orientation, said first spring of said first set of springs stacked above said second spring of said first set of springs, a top surface of said first spring of said first set of springs is positioned above said first side of said carrier in said pre-torque orientation, said first and second springs of said first set of springs configured to enable said top surface of said first spring of said first set of springs to move downwardly toward said first side of said carrier in said torque orientation; and, a second set of springs stacked within a second spring hole of said carrier, said first set of springs including a first and second springs, each of said springs in said second set of springs is aligned in a vertical arrangement so as to be able to receive a second bolt therethrough, said first spring in said second set of springs is configured to be non-coplanar with said carrier in a pre-torque orientation and a plurality of said springs in said second set of springs are configured to be coplanar with said carrier in a loaded and torqued orientation, said first spring of said second set of springs stacked above said second spring of said second set of springs, a top surface of said first spring of said second set of springs positioned above said first side of said carrier in said pre-torque orientation, said first and second springs of said second set of springs configured to enable said top surface of said first spring of said second set of springs to move downwardly toward said first side of said carrier in said torque orientation; d. inserting said torque retention arrangement adjacent to said first flange; e. inserting a body of said first bolt through said first flange and said flange connection interface such that said body of said first bolt passes through said first set of springs in the torque retention arrangement, a first bolt opening in said first flange, and a first bolt opening in said flange connection interface; f. inserting a body of said second bolt through said first flange and said flange connection interface such that said body of said second bolt passes through said second set of springs in the torque retention arrangement, a second bolt opening in said first flange, and a second bolt opening in said second flange connection interface; and, g. fastening and tightening a nut to an end of said first and second bolts to cause said first flange and said flange connection interface to be drawn together and to cause said springs in said first and second spring sets to move to said loaded and torqued orientation and a plurality of springs in said first and second spring sets becoming coplanar with said carrier, and wherein aligning at least one of said springs in each of said first and second spring sets to be coplanar with said carrier indicates a proper torque force, and wherein a top surface of said second spring of said first and second set of springs is positioned below said top surface of said carrier when said first and second set of springs are in said post-torque orientation. ### Claim 29 (depends on 28) The method as defined in claim 28, wherein said torque retention arrangement is configured to enable a user to visually determine that said springs in said first and second spring sets are in said loaded and torqued orientation with said carrier so as to be able to determine that a proper torque force has been applied to said nuts. ### Claim 30 (depends on 28) The method as defined in claim 28, wherein at least one of said springs in said first and second sets of springs is a disc spring. ### Claim 31 (depends on 29) The method as defined in claim 29, wherein at least one of said springs in said first and second sets of springs is a disc spring. ### Claim 32 (depends on 28) The method as defined in claim 28, wherein all of said springs in said first and second set of springs are non-coplanar with said carrier in said pre-torque orientation. ### Claim 33 (depends on 31) The method as defined in claim 31, wherein all of said springs in said first and second set of springs are non-coplanar with said carrier in said pre-torque orientation. ### Claim 34 (depends on 28) The method as defined in claim 28, wherein at least one of said springs in said first and second set of springs includes a coating, said coating designed to perform one or more functions selected from the group consisting of inhibiting a) corrosion of said spring, b) sticking together of adjacently positioned springs, c) impaired movement of adjacently positioned springs, d) excessive or undesired wear of said spring, and e) damage to said spring. ### Claim 35 (depends on 33) The method as defined in claim 33, wherein at least one of said springs in said first and second set of springs includes a coating, said coating designed to perform one or more functions selected from the group consisting of inhibiting a) corrosion of said spring, b) sticking together of adjacently positioned springs, c) impaired movement of adjacently positioned springs, d) excessive or undesired wear of said spring, and e) damage to said spring. ### Claim 36 (depends on 28) The method as defined in claim 28, wherein said carrier includes an O-ring around a perimeter of at least one of said spring holes of said carrier, said O-ring configured to facilitate in forming a seal about said at least one spring hole during and after said step of fastening and tightening a nut to an end of said first and second bolts. ### Claim 37 (depends on 33) The method as defined in claim 33, wherein said carrier includes an O-ring around a perimeter of at least one of said spring holes of said carrier, said O-ring configured to facilitate in forming a seal about said at least one spring hole when said during and after said step of fastening and tightening a nut to an end of said first and second bolts. ### Claim 38 (depends on 28) The method as defined in claim 28, wherein said carrier includes a flap plate at least partially inserted in said first spring hole of said carrier to limit downward movement of a peripheral edge of at least one of said springs in said first set of springs as said spring moves from said pre-torque orientation to said torqued orientation. ### Claim 39 (depends on 33) The method as defined in claim 33, wherein said carrier includes a flap plate at least partially inserted in said first spring hole of said carrier to limit downward movement of a peripheral edge of at least one of said springs in said first set of springs as said spring moves from said pre-torque orientation to said torqued orientation. ### Claim 40 (depends on 28) The method as defined in claim 28, including a flexible seal positioned in each of said first and second spring holes, said flexible seal in said first spring hole engaging a plurality of said springs in said first set of springs and positioned between an outer peripheral edge of said springs and a first inner wall surface of said first spring hole, said flexible seal in said second spring hole engaging a plurality of said springs in said second set of springs and positioned between an outer peripheral edge of said springs and a second inner wall surface of said second spring hole, said springs in said first set of springs causing said flexible seal to deform as said springs move from said pre-torque orientation to said torqued orientation, said springs in said second set of springs causing said flexible seal to deform as said springs move from said pre-torque orientation to said torqued orientation. ### Claim 41 (depends on 33) The method as defined in claim 33, including a flexible seal positioned in each of said first and second spring holes, said flexible seal in said first spring hole engaging a plurality of said springs in said first set of springs and positioned between an outer peripheral edge of said springs and a first inner wall surface of said first spring hole, said flexible seal in said second spring hole engaging a plurality of said springs in said second set of springs and positioned between an outer peripheral edge of said springs and a second inner wall surface of said second spring hole, said springs in said first set of springs causing said flexible seal to deform as said springs move from said pre-torque orientation to said torqued orientation, said springs in said second set of springs causing said flexible seal to deform as said springs move from said pre-torque orientation to said torqued orientation. ### Claim 42 (depends on 28) The method as defined in claim 28, wherein said carrier is flexible and includes a side slot to enable said carrier to be fitted about a pipe during said step of inserting said torque retention arrangement adjacent to said first flange. ### Claim 43 (depends on 33) The method as defined in claim 33, wherein said carrier is flexible and includes a side slot to enable said carrier to be fitted about a pipe during said step of inserting said torque retention arrangement adjacent to said first flange. ### Claim 44 (depends on 28) The method as defined in claim 28, wherein said springs in said first set of springs has a total height in said loaded and torqued orientation that is equal to or less than a thickness of a portion of said carrier that includes said first set of springs, said springs in said second set of springs has a total height in said loaded and torqued orientation that is equal to or less than a thickness of a portion of said carrier that includes said second set of springs. ### Claim 45 (depends on 33) The method as defined in claim 33, wherein said springs in said first set of springs has a total height in said loaded and torqued orientation that is equal to or less than a thickness of a portion of said carrier that includes said first set of springs, said springs in said second set of springs has a total height in said loaded and torqued orientation that is equal to or less than a thickness of a portion of said carrier that includes said second set of springs. ### Claim 46 (depends on 28) The method as defined in claim 28, wherein each of said first and second set of springs include a coating around an exterior perimeter of said first and second set of springs. ### Claim 47 (depends on 33) The method as defined in claim 33, wherein each of said first and second set of springs include a coating around an exterior perimeter of said first and second set of springs. ### Claim 48 (depends on 28) The method as claimed in claim 28, wherein said carrier includes a plurality of fingers extending outwardly from a center of said carrier, a first finger includes one of said spring holes that includes said first set of springs, a second finger includes one of said spring holes that includes said second set of springs. ### Claim 49 (depends on 33) The method as defined in claim 33, wherein said carrier includes a plurality of fingers extending outwardly from a center of said carrier, a first finger includes one of said spring holes that includes said first set of springs, a second finger includes one of said spring holes that includes said second set of springs. ### Claim 50 (depends on 28) The method as defined in claim 28, including first and second grommets, said first grommet positioned in and connected to said first spring hole, said first grommet including said first set of springs, said first set of springs positioned in an interior cavity of said first grommet, said second grommet positioned in and connected to said second spring hole, said second grommet including said second set of springs, said second set of springs positioned in an interior cavity of said second grommet. ### Claim 51 (depends on 33) The method as defined in claim 33, including first and second grommets, said first grommet positioned in and connected to said first spring hole, said first grommet including said first set of springs, said first set of springs positioned in an interior cavity of said first grommet, said second grommet positioned in and connected to said second spring hole, said second grommet including said second set of springs, said second set of springs positioned in an interior cavity of said second grommet. ### Claim 52 (depends on 28) The method as defined in claim 28, including wherein said step of inserting includes inserting said torque retention arrangement at least partially between said first flange and said flange connection interface while said torque retention arrangement is in a pre-torque orientation. ### Claim 53 (depends on 33) The method as defined in claim 33, including wherein said step of inserting includes inserting said torque retention arrangement at least partially between said first flange and said flange connection interface while said torque retention arrangement is in a pre-torque orientation. ### Claim 54 (depends on 28) The method as defined in claim 28, wherein said carrier is a one-piece carrier. ### Claim 55 (depends on 33) The method as defined in claim 33, wherein said carrier is a one-piece carrier. ### Claim 56 (depends on 28) The method as defined in claim 28, wherein said plurality of spring holes are equi-spaced around a circumference of said carrier. ### Claim 57 (depends on 33) The method as defined in claim 33, wherein said plurality of spring holes are equi-spaced around a circumference of said carrier. ### Claim 58 (depends on 28) The method as defined in claim 28, wherein said flange connection interface is a second flange.