Cover for a secondary part of a linear motor

{
  "publication_number": "US2010109449A1",
  "country": "US",
  "kind": "A1",
  "title": "Cover for a secondary part of a linear motor",
  "abstract": "The invention relates to a cover (20) for a secondary part (2) of an electrical linear motor (1), wherein the secondary part (2) includes at least one first and one second secondary partial element (12), and wherein each secondary partial element (12) comprises a toothed profile, and wherein the cover (20) extends over the toothed profiles of the first and second secondary partial elements (12), forming a continuous surface. The invention further relates to a secondary part (2) comprising a cover (20) and a linear motor (1) comprising a secondary part (2) and a cover (20).",
  "claims": [
    "20. A cover for a secondary part of an electrical linear motor, said secondary part comprising first and second secondary part elements, each having a toothed profile, wherein the cover extends over the toothed profiles of the first and second secondary part elements and forms a continuous surface.",
    "21. The cover of claim 20, wherein one of the first and second secondary part elements is constructed in the form of a laminated core having a plurality of laminates, wherein the laminates are arranged in parallel relationship to a movement direction of a primary part of the linear motor.",
    "22. The cover of claim 20, wherein the cover is formed from a plurality of parts.",
    "23. The cover of claim 22, wherein the first secondary part element has a first cover, and the second secondary part element has a second cover, said first and second covers being connectable to one another.",
    "24. The cover of claim 23, wherein one of the first and second covers is formed by a cured encapsulation compound.",
    "25. The cover of claim 23, wherein one of the first and second secondary part elements is constructed in the form of a laminated core having a plurality of laminates, wherein one of the first and second covers is formed by a corresponding laminate section of the laminates of the laminated core of the one secondary part element.",
    "26. The cover of claim 23, wherein one of the first and second covers is formed by a flat covering plate and is fixed to the toothed profile of the secondary part.",
    "27. The cover of claim 23, wherein the first and second covers are connectable to one another by a filling material.",
    "28. The cover of claim 27, wherein the filling material includes plastic.",
    "29. The cover of claim 20, wherein the cover is constructed in the form of a single-piece covering plate.",
    "30. The cover of claim 29, further comprising connecting elements for attaching the covering plate to the toothed profiles of the first and second secondary part elements.",
    "31. The cover of claim 29, wherein each of the first and second secondary part elements has a cured encapsulation compound, said covering plate being constructed for attachment to the cured encapsulation compound.",
    "32. The cover of claim 31, further comprising connecting elements for attaching the covering plate to the toothed profiles of the first and second secondary part elements, wherein the connecting elements are arranged at a predeterminable distance apart on the cover such that the connecting elements are fixable to the encapsulation compound in an area of butt joints between the first and second secondary part elements.",
    "33. The cover of claim 31, wherein the cured encapsulation compound has two opposite sides, each provided with a slot, said covering plate being insertable into the slots.",
    "34. A secondary part of an electrical linear motor, comprising: at least two secondary part elements, each secondary part element having a toothed profile; and a cover constructed to extend over the toothed profiles of the two secondary part elements and to form a continuous surface.",
    "35. The secondary part of claim 34, wherein the cover is a single-piece construction.",
    "36. The secondary part of claim 34, wherein the cover is comprised of several parts.",
    "37. The secondary part of claim 34, wherein the cover is formed by a cured encapsulation compound.",
    "38. The secondary part of claim 34, wherein the cover is constructed in the form of a flat covering plate and fixed to the toothed profile of the secondary part elements.",
    "39. The secondary part of claim 36, wherein the parts of the covers are connectable to one another by a filling material.",
    "40. The secondary part of claim 34, wherein the filling material includes plastic.",
    "41. The secondary part of claim 34, further comprising connecting elements for attaching the cover to the toothed profiles of the secondary part elements.",
    "42. The secondary part of claim 34, wherein each of the secondary part elements has a cured encapsulation compound, said cover being constructed for attachment to the cured encapsulation compound.",
    "43. The secondary part of claim 42, further comprising connecting elements for attaching the cover to the toothed profiles of the secondary part elements, wherein the connecting elements are arranged at a predeterminable distance apart on the cover such that the connecting elements are fixable to the encapsulation compound in an area of butt joints between the first and second secondary part elements.",
    "44. The secondary part of claim 42, wherein the cured encapsulation compound has two opposite sides, each provided with a slot, said cover being insertable into the slots.",
    "45. A linear motor, comprising: a secondary part including at least two secondary part elements, each having a toothed profile; a primary part interacting with the secondary part; and a cover extending as one part or a plurality of parts over the toothed profiles of the two secondary part elements and forming a continuous surface.",
    "46. The linear motor of claim 45, wherein one of the first and second secondary part elements is constructed in the form of a laminated core having a plurality of laminates, wherein the laminates are arranged in parallel relationship to a movement direction of the primary part of the linear motor.",
    "47. The linear motor of claim 45, wherein one of the secondary part elements has a first cover, and the other one of the second secondary part elements has a second cover, said first and second covers being connectable to one another.",
    "48. The linear motor of claim 47, wherein one of the first and second covers is formed by a cured encapsulation compound.",
    "49. The linear motor of claim 47, wherein one of the secondary part elements is constructed in the form of a laminated core having a plurality of laminates, wherein one of the first and second covers is formed by a corresponding laminate section of the laminates of the laminated core of the one secondary part element.",
    "50. The linear motor of claim 47, wherein one of the first and second covers is formed by a flat covering plate and is fixed to the toothed profile of the secondary part elements.",
    "51. The linear motor of claim 47, wherein the first and second covers are connectable to one another by a filling material.",
    "52. The linear motor of claim 51, wherein the filling material includes plastic.",
    "53. The linear motor of claim 45, wherein the cover is constructed in the form of a single-piece covering plate.",
    "54. The linear motor of claim 53, further comprising connecting elements for attaching the covering plate to the toothed profiles of the first and second secondary part elements.",
    "55. The linear motor of claim 53, wherein each of the secondary part elements has a cured encapsulation compound, said covering plate being constructed for attachment to the cured encapsulation compound.",
    "56. The linear motor of claim 55, further comprising connecting elements for attaching the cover to the toothed profiles of the secondary part elements, wherein the connecting elements are arranged at a predeterminable distance apart on the cover such that the connecting elements are fixable to the encapsulation compound in an area of butt joints between the secondary part elements.",
    "57. The linear motor of claim 55, wherein the cured encapsulation compound has two opposite sides, each provided with a slot, said covering plate being insertable into the slots.",
    "58. The linear motor of claim 45, wherein the secondary part defines a movement path for the primary part."
  ],
  "cpc": [
    "H02K 41/02"
  ],
  "assignees": [
    "SIEMENS AG"
  ],
  "filing_date": "2008-03-25",
  "publication_date": "2010-05-06",
  "priority_date": "2007-03-26",
  "application_number": "US-53291508-A",
  "family_id": "39682720",
  "citations": [
    "JP2002176762A",
    "JPH05168218A",
    "US2008136268A1",
    "US2008246350A1",
    "US4661730A",
    "US5169054A",
    "US5179304A",
    "US6545375B2",
    "US7205687B2",
    "US7851951B2"
  ]
}