Lock ring

{
  "publication_number": "US10441983B2",
  "country": "US",
  "kind": "B2",
  "title": "Lock ring",
  "abstract": "A lock ring that has a first ring half, a second ring half and a latch assembly. The first ring half includes a nest opening on a front portion of the first ring half, a back end portion of the first ring portion hingedly connected to a back end portion of the second ring half. The latch assembly is connected to a front portion of the second ring half. The latch assembly includes a connection arrangement and a spring system. The connection arrangement is designed to be releasably positionable in the nest opening. The spring system is designed to cause the front portions of the first and second ring halves to be drawn toward one another when the connection arrangement is positioned in the nest opening.",
  "claims": [
    "1. A lock ring comprising a first ring portion, a second ring portion and a latch assembly, said first ring portion including a nest having a nest opening on a front portion of said first ring portion, said latch assembly connected in and at least partially positioned in a latch cavity located in a front portion of said second ring portion, said latch cavity having a longitudinal axis, said latch assembly including a latch arrangement and a spring arrangement, a top portion of said latch arrangement configured to be releasably positionable in said nest opening when said lock ring is in a closed and locked position, said latch arrangement configured to move both in a plane that is non-parallel relative to the longitudinal axis of said latch cavity and in a plane that is parallel to said longitudinal axis of said latch cavity, a base portion of said latch arrangement engaging said spring arrangement to enable said spring arrangement to cause said base portion of said latch arrangement to move in said plane that is parallel to said longitudinal axis of said latch cavity, said spring arrangement creating a force on said base portion of said latch arrangement to cause at least one of said first and second ring portions to be drawn toward one another when said top portion of said latch arrangement is positioned in said nest opening, said front portion of each of said first and second ring portions has a front end, each of said first and second ring portions has an outer top surface, an inner bottom surface and a side surface positioned between said outer top surface and an inner bottom surface, said nest on said first ring portion at least partially positioned on said outer top surface of said first ring portion, said nest angling downwardly from said outer top surface of said first ring portion, said nest including a bottom slot, said bottom slot at least partially positioned below said nest opening, said latch cavity including a top opening, said front end of said second ring portion configured to contact or be positioned closely adjacent to said front end of said first ring portion when said first and second ring portions are in a locked position, said spring arrangement at least partially positioned in said latch cavity, at least a portion of said latch arrangement extending outwardly from said top opening of said latch cavity.",
    "2. The lock ring as defined in claim 1, wherein said spring arrangement includes a gas spring, a mechanical spring, or combinations thereof.",
    "3. The lock ring as defined in claim 1, including a hinge spring connected to said back portions of said first and second ring portions, said hinge spring is configured to bias together said front end portions of said first and second ring portions.",
    "4. The lock ring as defined in claim 1, wherein said first ring portion includes a safety detent, said safety detent including an extension member that is moveable between and retracted and extended position, said extension member biased outwardly to said extended position by a spring arrangement, at least a portion of said extension member extends outwardly from an outer surface of said first ring portion when in said extended position, at least a portion of said extension member moveable into an interior of said first ring portion when in said retracted position, said extension member configured to facilitate in maintaining said top portion of said latch arrangement of said latch assembly in said nest opening when said lock ring is in a locked position.",
    "5. The lock ring as defined in claim 4, wherein said detent spring arrangement of said safety detent outwardly biases said extension member by at least 1 pounds of force.",
    "6. The lock ring as defined in claim 1, wherein said top portion of said latch arrangement forms a T-shape configuration, said top portion including an arcuate top surface that is configured to engage corresponding arcuate surfaces in said nest when said top portion is releasably connected to said nest.",
    "7. The lock ring as defined in claim 1, wherein said first ring portion includes at least one radial hole.",
    "8. The lock ring as defined in claim 1, wherein said second ring portion includes at least one radial hole.",
    "9. The lock ring as defined in claim 1, wherein said nest opening includes a lead-in angle of about 20-70° from vertical.",
    "10. The lock ring as defined in claim 1, wherein said nest opening includes an exit angle of about 20-70° from horizontal.",
    "11. A method for using a lock ring comprising the steps of: a. providing a lock ring, said lock ring comprising a first ring portion, a second ring portion and a latch assembly, said first ring portion including a nest having a nest opening on a front portion of said first ring portion, said latch assembly connected in and at least partially positioned in a latch cavity located in a front portion of said second ring portion, said latch cavity having a longitudinal axis, said latch assembly including a latch arrangement and a spring arrangement, said latch arrangement configured to be releasably positionable in said nest opening when said lock ring is in a closed and locked position, said latch arrangement configured to move both in a plane that is non-parallel relative to the longitudinal axis of said latch cavity and in a plane that is parallel to said longitudinal axis of said latch cavity, a base portion of said latch arrangement engaging said spring arrangement to enable said spring arrangement to cause said base portion of said latch arrangement to move in said plane that is parallel to said longitudinal axis of said latch cavity, said spring arrangement creating a force on said base portion of said latch arrangement to cause at least one of said first and second ring portions to be drawn toward one another when said top portion of said latch arrangement is positioned in said nest opening, said front portion of each of said first and second ring portions has a front end, each of said first and second ring portions has an outer top surface, an inner bottom surface and a side surface positioned between said outer top surface and an inner bottom surface, said nest on said first ring portion at least partially positioned on said outer top surface of said first ring portion, said nest angling downwardly from said outer top surface of said first ring portion, said nest including a bottom slot, said bottom slot at least partially positioned below said nest opening, said latch cavity including a top opening, said front end of said second ring portion configured to contact or be positioned closely adjacent to said front end of said first ring portion when said first and second ring portions are in a locked position, said spring arrangement at least partially positioned in said latch cavity, at least a portion of said latch arrangement extending outwardly from said top opening of said latch cavity; b. positioning said first and second ring portions about a member; and, c. inserting said latch arrangement into said nest opening to secure said lock ring in said closed and locked position.",
    "12. The method as defined in claim 11, wherein said spring arrangement includes a gas spring, a mechanical spring, or combinations thereof.",
    "13. The method as defined in claim 11, including a hinge spring connected to said back portions of said first and second ring portions, said hinge spring is configured to bias together said front end portions of said first and second ring portions.",
    "14. The method as defined in claim 11, wherein said first ring portion includes a safety detent, said safety detent including an extension member that is moveable between and retracted and extended position, said extension member biased outwardly to said extended position by a spring arrangement, at least a portion of said extension member extends outwardly from an outer surface of said first ring portion when in said extended position, at least a portion of said extension member moveable into an interior of said first ring portion when in said retracted position, said extension member configured to facilitate in maintaining a portion of said top portion of said latch arrangement of said latch assembly in said nest opening when said lock ring is in a locked position.",
    "15. The method as defined in claim 11, wherein said top portion of said latch arrangement forms a T-shape configuration, said top portion including an arcuate top surface that is configured to engage corresponding arcuate surfaces in said nest when said top portion is releasably connected to said nest.",
    "16. A lock ring comprising a first ring portion, a second ring portion and a latch assembly configured to releasably connect said first and second ring portions, each of said first and second ring portions has a front portion with a front end, a rear portion, an outer top surface, an inner bottom surface and a side surface positioned between said outer top surface and said inner bottom surface, said front portion of said first ring portion including a nest, said nest at least partially positioned on said outer top surface of said first ring portion, said nest including a nest opening, said nest angles downwardly from said outer top surface of said first ring portion, said nest including a bottom slot, said bottom slot at least partially positioned below said nest opening, said front portion of said second ring portion including a latch cavity having a longitudinal axis, said latch cavity including a top opening, said front end of said second ring portion configured to contact or be positioned closely adjacent to said front end of said first ring portion when said first and second ring portions are in a locked position, said latch assembly including a spring arrangement and a latch arrangement, said spring arrangement at least partially positioned in said latch cavity, at least a portion of said latch arrangement positioned outside latch cavity, said latch arrangement configured to move in both a plane that is non-parallel relative to the longitudinal axis of said latch cavity and in a plane that is parallel to said longitudinal axis of said latch cavity, said latch arrangement includes a base portion and a top portion, said base portion of said latch arrangement engaging said spring arrangement to enable said spring arrangement to cause said base portion of said latch arrangement to move in said plane that is parallel to said longitudinal axis of said latch cavity, said top portion of said latch arrangement configured to be at least partially positionable in said nest opening and to releasably connect to said nest of said first ring portion, said spring arrangement configured to create a force on said latch arrangement so as to cause said front portions of said first and second ring portions to be drawn toward one another when said top portion of said latch arrangement is positioned in said nest, said spring arrangement including one or more mechanical springs, fluid springs or combinations thereof.",
    "17. The lock ring as defined in claim 16, wherein said rear portion of said first and second ring portions are movably connected together.",
    "18. The lock ring as defined in claim 16, wherein said nest of said first ring portion includes a safety detent, said safety detent including an extension member that is moveable between retracted and extended positions, said extension member biased outwardly to said extended position by a detent spring arrangement, at least a portion of said extension member extends outwardly from an outer surface of said first ring portion when in said extended position, at least a portion of said extension member moveable into an interior of said first ring portion when in said retracted position, said safety detent configured to inhibit said top portion of said latch arrangement from inadvertently disconnecting from said nest when said top portion is positioned in said nest.",
    "19. The lock ring as defined in claim 17, wherein said nest of said first ring portion includes a safety detent, said safety detent including an extension member that is moveable between retracted and extended positions, said extension member biased outwardly to said extended position by a detent spring arrangement, at least a portion of said extension member extends outwardly from an outer surface of said first ring portion when in said extended position, at least a portion of said extension member moveable into an interior of said first ring portion when in said retracted position, said safety detent configured to inhibit said top portion of said latch arrangement from inadvertently disconnecting from said nest when said top portion is positioned in said nest.",
    "20. The lock ring as defined in claim 19, wherein said nest includes a plurality of said safety detents.",
    "21. The lock ring as defined in claim 16, including a hinge spring connected to said back end portions of said first and second ring portions, said hinge spring biasing together said front portions of said first and second ring portions.",
    "22. The lock ring as defined in claim 20, including a hinge spring connected to said back end portions of said first and second ring portions, said hinge spring biasing together said front portions of said first and second ring portions.",
    "23. The lock ring as defined in claim 16, wherein said top portion of said latch arrangement form a T-shape configuration, said top portion including an arcuate top surface configured to engage corresponding arcuate surfaces in said nest when said top portion is releasably connected to said nest.",
    "24. The lock ring as defined in claim 22, wherein said top portion of said latch arrangement form a T-shape configuration, said top portion including an arcuate top surface configured to engage corresponding arcuate surfaces in said nest when said top portion is releasably connected to said nest.",
    "25. The lock ring as defined in claim 16, wherein a longitudinal axis of said top portion of said latch arrangement is angled at least 10° from a longitudinal axis of said latch cavity when said top portion of said latch arrangement is releasably connected to said nest.",
    "26. The lock ring as defined in claim 24, wherein a longitudinal axis of said top portion of said latch arrangement is angled at least 10° from a longitudinal axis of said latch cavity when said top portion of said latch arrangement is releasably connected to said nest.",
    "27. The lock ring as defined in claim 16, wherein each of said first and second ring portions includes a plurality of radial holes that pass fully through the side surface of said first and second ring portions.",
    "28. The lock ring as defined in claim 16, wherein said nest opening includes a lead-in angle of about 20-70° from vertical, and said nest opening includes an exit angle of about 20-70° from horizontal.",
    "29. The lock ring as defined in claim 16, further including a limit arrangement that limits movement of said base portion of said latch arrangement along said longitudinal axis of said latch cavity.",
    "30. The lock ring as defined in claim 16, wherein said spring arrangement includes a fluid spring to cause said base portion of said latch arrangement to move along said longitudinal axis of said latch cavity.",
    "31. A method for using a lock ring comprising the steps of: a. providing a lock ring, said lock ring comprising a first ring portion, a second ring portion and a latch assembly configured to releasably connect said first and second ring portions, each of said first and second ring portions has a front portion with a front end, a rear portion, an outer top surface, an inner bottom surface and a side surface positioned between said outer top surface and said inner bottom surface, said front portion of said first ring portion including a nest, said nest at least partially positioned on said outer top surface of said first ring portion, said nest including a nest opening, said nest angles downwardly from said outer top surface of said first ring portion, said nest including a bottom slot, said bottom slot at least partially positioned below said nest opening, said front portion of said second ring portion including a latch cavity having a longitudinal axis, said latch cavity including a top opening, said front end of said second ring portion configured to contact or be positioned closely adjacent to said front end of said first ring portion when said first and second ring portions are in a locked position, said latch assembly including a spring arrangement and a latch arrangement, said spring arrangement at least partially positioned in said latch cavity, at least a portion of said latch arrangement positioned outside latch cavity, said latch arrangement configured to move in both a plane that is non-parallel relative to the longitudinal axis of said latch cavity and in a plane that is parallel to said longitudinal axis of said latch cavity, said latch arrangement includes a base portion and a top portion, said base portion of said latch arrangement engaging said spring arrangement to enable said spring arrangement to cause said base portion of said latch arrangement to move in said plane that is parallel to said longitudinal axis of said latch cavity, said top portion of said latch arrangement configured to be at least partially positionable in said nest opening and to releasably connect to said nest of said first ring portion, said spring arrangement configured to create a force on said latch arrangement so as to cause said front portions of said first and second ring portions to be drawn toward one another when said top portion of said latch arrangement is positioned in said nest, said spring arrangement including one or more mechanical springs, fluid springs or combinations thereof; b. positioning said first and second ring portions about a member; and, c. inserting said top portion of said latch arrangement into said nest opening to secure said lock ring in said locked position.",
    "32. The method as defined in claim 31, wherein said rear portion of said first and second ring portions are movably connected together.",
    "33. The method as defined in claim 31, wherein said nest of said first ring portion includes a safety detent, said safety detent including an extension member that is moveable between retracted and extended positions, said extension member biased outwardly to said extended position by a detent spring arrangement, at least a portion of said extension member extends outwardly from an outer surface of said first ring portion when in said extended position, at least a portion of said extension member moveable into an interior of said first ring portion when in said retracted position, said safety detent configured to inhibit said top portion of said latch arrangement from inadvertently disconnecting from said nest when said top portion is positioned in said nest.",
    "34. The method as defined in claim 32, wherein said nest of said first ring portion includes a safety detent, said safety detent including an extension member that is moveable between retracted and extended positions, said extension member biased outwardly to said extended position by a detent spring arrangement, at least a portion of said extension member extends outwardly from an outer surface of said first ring portion when in said extended position, at least a portion of said extension member moveable into an interior of said first ring portion when in said retracted position, said safety detent configured to inhibit said top portion of said latch arrangement from inadvertently disconnecting from said nest when said top portion is positioned in said nest.",
    "35. The method as defined in claim 31, including a hinge spring connected to said back end portions of said first and second ring portions, said hinge spring biasing together said front portions of said first and second ring portions.",
    "36. The method as defined in claim 34, including a hinge spring connected to said back end portions of said first and second ring portions, said hinge spring biasing together said front portions of said first and second ring portions.",
    "37. The method as defined in claim 31, wherein said top portion of said latch arrangement form a T-shape configuration, said top portion including an arcuate top surface configured to engage corresponding arcuate surfaces in said nest when said top portion is releasably connected to said nest.",
    "38. The method as defined in claim 36, wherein said top portion of said latch arrangement form a T-shape configuration, said top portion including an arcuate top surface configured to engage corresponding arcuate surfaces in said nest when said top portion is releasably connected to said nest.",
    "39. The method as defined in claim 31, wherein a longitudinal axis of said top portion of said latch arrangement is angled at least 10° from a longitudinal axis of said latch cavity when said top portion of said latch arrangement is releasably connected to said nest.",
    "40. The method as defined in claim 38, wherein a longitudinal axis of said top portion of said latch arrangement is angled at least 10° from a longitudinal axis of said latch cavity when said top portion of said latch arrangement is releasably connected to said nest.",
    "41. The method as defined in claim 31, further including a limit arrangement that limits movement of said base portion of said latch arrangement along said longitudinal axis of said latch cavity.",
    "42. The method as defined in claim 40, further including a limit arrangement that limits movement of said base portion of said latch arrangement along said longitudinal axis of said latch cavity.",
    "43. The lock ring as defined in claim 31, wherein said spring arrangement includes a fluid spring to cause said base portion of said latch arrangement to move along said longitudinal axis of said latch cavity.",
    "44. The lock ring as defined in claim 42, wherein said spring arrangement includes a fluid spring to cause said base portion of said latch arrangement to move along said longitudinal axis of said latch cavity."
  ],
  "description_excerpt": "The present invention is a continuation of U.S. application Ser. No. 14/306,896 filed Jun. 17, 2014, which in turn claims priority on U.S. Provisional Application Ser. No. 61/836,841 filed Jun. 19, 2013, which is incorporated herein by reference.\n\nThe present invention is directed to lock rings in general, particularly to lock rings that include a spring biased locking mechanism, more particularly to lock rings that include a fluid spring biased locking mechanism, still more particularly to lock rings that include a gas spring biased locking mechanism, and yet more particularly to lock rings that include a gas spring biased locking mechanism used in retaining a choke assembly used in the processing of metals. The lock rings of the present invention can be used for rolling mill applications.\n\nPrior art lock rings are typically made of metal and consist of two ring halves that are connected by a hinge on one end and a latching mechanism on the other end. One such prior art lock ring is illustrated in FIG. 1. The latching mechanism typically consists of a bolt that is connected to one half and pivots over to the other half when in a closed position. Nut(s) and washers are then tightened via hand and/or power tool to achieve the clamping force. This method of closure creates inconsistencies due to the operator, and also yields a geometry that is susceptible to interference issues. The torque of the nut can be different from operator to operator and must be verified to hold any consistency. If the nut is not properly tightened, the lock ring may inadvertently open during use.",
  "cpc": [
    "B21B 31/07",
    "F16B 21/186",
    "F16D 1/116",
    "Y10T 24/44376",
    "Y10T 29/49947"
  ],
  "ipc": [
    "B21B 31/07",
    "F16B 21/18",
    "F16D 1/116"
  ],
  "assignees": [
    "Barnes Group Inc"
  ],
  "inventors": [
    "Thomas Gaines",
    "Marc Pentecost",
    "Dan Frank",
    "Steve Reilly"
  ],
  "filing_date": "2017-07-25",
  "publication_date": "2019-10-15",
  "grant_date": "2019-10-15",
  "priority_date": "2013-06-19",
  "application_number": "US-201715658852-A",
  "family_id": "51014147",
  "cited_by_count": 0,
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  ]
}