Stud hole protection for a horseshoe

{
  "publication_number": "US11388898B2",
  "country": "US",
  "kind": "B2",
  "title": "Stud hole protection for a horseshoe",
  "abstract": "Stud hole protection (13, 60), to be inserted into a threaded stud hole (12) in a horseshoe (10). The stud hole protection (13, 60) comprises a stud hole core (21, 81). The peripheral parts of the stud hole core (21, 81) are at least partly provided with a thread connection element (23, 62) of a softer material than the material of the stud hole core (21, 81) and which thread connection element (23, 62) connects to the thread (51) of the stud hole (12) in the horseshoe (10) when the stud hole protection (13, 60) is mounted.",
  "claims": [
    "1. A stud hole protection to be inserted into a threaded stud hole in a horseshoe, the stud hole protection comprising: a stud hole core, and a thread connection element of a softer material than a material of the stud hole core, wherein the thread connection element is formed as a jacket which surrounds the stud hole core, wherein the thread connection element is configured to contact threading of the threaded stud hole in the horseshoe and prevent the material of the stud hole core from contacting the threading of the threaded stud hole in the horseshoe when the stud hole protection is mounted in the threaded stud hole in the horseshoe, wherein the softer material of the thread connection element extends from a bottom of the stud hole core to a top of the stud hole core.",
    "2. The stud hole protection of claim 1, wherein the stud hole core is substantially cylindrical.",
    "3. The stud hole protection of claim 1, wherein the stud hole core is of metal.",
    "4. The stud hole protection of claim 1, wherein the thread connection element is of a polymeric material.",
    "5. The stud hole protection of claim 1, wherein the stud hole core is provided with gripping means configured to clamp against the thread connection element.",
    "6. The stud hole protection of claim 1, wherein the thread connection element is formed as a connector basket having a top ring connected to a bottom slab by a number of connecting elements.",
    "7. The stud hole protection of claim 6, wherein the stud hole core is provided with grooves in which the connecting elements partly are inserted, so that the grooves are configured to act conveyingly on the connector basket upon mounting by screwing-in the stud hole protection.",
    "8. The stud hole protection of claim 6, wherein the number of connecting elements is three.",
    "9. The stud hole protection of claim 1, wherein the jacket comprises a number of integrated wings.",
    "10. The stud hole protection of claim 9, wherein the number of integrated wings of the thread connection element is three.",
    "11. The stud hole protection of claim 9, wherein the stud hole core is provided with three to five plate-shaped wings directed radially out from the center axis of the stud hole core and having edge-positioned recesses.",
    "12. The stud hole protection of claim 11, wherein each plate-shaped wing is provided with only one edge-positioned recess.",
    "13. The stud hole protection of claim 11, wherein at least two of the edge-positioned recesses are situated at an equal axial distance from the bottom of the stud hole core.",
    "14. The stud hole protection of claim 1, wherein the stud hole core is plate-shaped with edge-positioned recesses.",
    "15. The stud hole protection of claim 1, wherein the jacket encases the stud hole core."
  ],
  "description_excerpt": "The present invention relates to a horseshoe and particularly a horseshoe that is provided with detachable studs.\n\nOn slippery ground, horseshoes having studs are used. Said studs may be integrated with the horseshoe wherein the entire horseshoe has to be replaced when the studs are to be removed. In addition, there are horseshoes having threaded holes for detachable studs. Problems of said horseshoes are that the threaded holes are difficult to keep intact when studs are not fitted. Dirt is collected in the threads of the holes, which are difficult to clean before the studs should be fitted. An even greater problem is that load of several hundred kilos against a threaded hole because of stone and the like will deform the threads and makes it impossible that a stud can be fitted in the thread.\n\nFrom the English document GB 2465635 it is known that a horseshoe of steel is provided with threaded holes to allow the fitting of studs. The document also shows that this threaded hole is protected by a foam plug having a high density and high proportion of closed cells of a material that resists wearing, fluid absorption and hydrolysis. A problem is, however, that the threads risk being deformed upon heavy load against the plug since the foam plug is pressed into the threaded hole wherein a metal stud cannot be screwed-in. In addition, dirt is pressed up and into the threaded holes.\n\nThe French document FR 2612048 shows a threaded protective plug of nylon or plastic to protect a threaded hole in a horseshoe in which a stud can be fitted by removing the plug and replacing the same by the stud.",
  "cpc": [
    "A01L 7/00",
    "A01L 7/04",
    "A01L 7/06",
    "F16B 33/004"
  ],
  "ipc": [
    "A01L 7/00",
    "A01L 7/04",
    "A01L 7/06",
    "F16B 33/00"
  ],
  "assignees": [
    "Malma Dental AB"
  ],
  "inventors": [
    "Thomas Mähl"
  ],
  "filing_date": "2017-02-22",
  "publication_date": "2022-07-19",
  "grant_date": "2022-07-19",
  "priority_date": "2016-02-29",
  "application_number": "US-201716079157-A",
  "family_id": "59744299",
  "cited_by_count": 0,
  "citations": [
    "US1361744A",
    "US1508129A",
    "US2049544A",
    "US2137062A",
    "US2381177A",
    "DE2651660A1",
    "US4791692A",
    "FR2612048A1",
    "DE4418169A1",
    "US5732482A",
    "DE202004010771U1",
    "WO2005082193A1",
    "US20080115946A1",
    "DE202007001379U1",
    "DE102006039441A1",
    "EP1992223A1",
    "GB2451112A",
    "US20090044959A1",
    "US20090084560A1",
    "DE202008007406U1",
    "GB2465635A",
    "WO2012160260A1",
    "GB2561670A"
  ]
}