Plasma electrolytic oxidation (PEO) coated peelable shims

{
  "publication_number": "US11015259B2",
  "country": "US",
  "kind": "B2",
  "title": "Plasma electrolytic oxidation (PEO) coated peelable shims",
  "abstract": "A method for producing a laminated shim includes subjecting a shim stock to a plasma electrolytic oxidization (PEO) process to create a PEO shim, applying an adhesive layer of an adhesive to a surface of the PEO shim, stacking at least one other PEO shim onto the adhesive layer of the PEO shim to create a stack of PEO shims, and pressing the stack of PEO shims together to create a PEO coated peelable laminate.",
  "claims": [
    "1. A laminated shim comprising: first and second sheets of plasma electrolytic oxidization (PEO) shim stock, each sheet having upper and lower planar surfaces, each upper and lower planar surface having a PEO layer thereon; and an adhesive layer of an adhesive on the PEO layers and between the first and second sheets for adhering the first and second sheets of PEO shim stock together, the adhesive including a resin, a hardener and an acetone and having a resin to hardener to acetone ratio of 1:3:6 by weight.",
    "2. The laminated shim of claim 1, wherein the PEO shim stock includes any one of PEO layers of corundum on aluminum, or PEO layers of spinel on magnesium, or PEO layers of rutile on titanium.",
    "3. The laminated shim of claim 1, wherein the adhesive is adhered such that the first sheet of PEO shim stock is peelably removable from the second sheet of PEO shim stock.",
    "4. The laminated shim of claim 1 further comprising: a plurality of further sheets of the PEO shim stock stacked with the first and second sheets of PEO shim stock, wherein each of the plurality of further sheets of the PEO shim stock has the adhesive layer therebetween.",
    "5. The laminated shim of claim 1, wherein the first and second sheets of PEO shim stock each have a thickness of 0.001 inch to 0.010 inch.",
    "6. The laminated shim of claim 1, wherein the layer of the adhesive has a thickness that is less than a thickness of the first or second sheet of PEO shim stock."
  ],
  "description_excerpt": "The embodiments disclosed herein relate to gap management manufacturing, and, in particular to surface bonded laminated shims for managing gaps.\n\nShims are thin, often tapered or wedge-shaped pieces of material that are used to fill small gaps or spaces between component parts such as assembly items. Shims may be of particular applicability in the aerospace and defense industries. During manufacturing assembly, close gaps may be created when multiple components are assembled because of manufacturing tolerances.\n\nThe tolerances between component parts may create a varied thickness of gaps. Laminated shims may be used to fill these gaps. Laminated shims are stacks of shims that are adhered together that may be peelably separated based on the particular thickness of the gap. Shims may be full surface bonded laminated shims, edge bonded shims, tapered shims, solid shims, or machined parts. However, conventional laminated shims may not provide desirable material properties on all layers of the laminated shim. Where the shims do not have the same level of quality of properties of the surrounding components, the shim may become the weakest link in the assembly. Accordingly, there is a need for an improved laminated shim.",
  "cpc": [
    "C25D 11/026",
    "B32B 15/00",
    "B32B 15/017",
    "B32B 2255/06",
    "B32B 2255/20",
    "B32B 37/12",
    "B32B 7/06",
    "B32B 7/12",
    "C25D 11/18",
    "F16B 11/006",
    "F16B 43/00",
    "F16J 15/06"
  ],
  "ipc": [
    "B32B 15/00",
    "B32B 15/01",
    "B32B 37/12",
    "B32B 7/06",
    "B32B 7/12",
    "C25D 11/02",
    "C25D 11/18",
    "F16B 11/00",
    "F16B 43/00",
    "F16J 15/06"
  ],
  "assignees": [
    "Voss Innovative Technologies Corp"
  ],
  "inventors": [
    "Peter Voss",
    "Stephen Forrest",
    "Kapilan Paramanathan",
    "Deoram Singh"
  ],
  "filing_date": "2017-02-15",
  "publication_date": "2021-05-25",
  "grant_date": "2021-05-25",
  "priority_date": "2016-02-17",
  "application_number": "US-201716071644-A",
  "family_id": "59624812",
  "cited_by_count": 0,
  "citations": [
    "US4526641A",
    "EP0667233A1",
    "US6085414A",
    "US8518839B2",
    "US6896785B2",
    "US20050082699A1",
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    "EP2147777A1",
    "US20120031765A1",
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    "EP2327541A1",
    "US8828215B2",
    "US8808523B2",
    "US8808522B2"
  ]
}