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Internal chamfering device and method

  • US 8,388,277 B2
  • Filed: 05/09/2008
  • Issued: 03/05/2013
  • Est. Priority Date: 05/09/2008
  • Status: Active Grant
First Claim
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1. A method of forming an opening in a layered structure, comprising:

  • providing a layered structure including a first layer and a second layer, a near-zero gap interface defined between said first layer and said second layer and a first fay surface on said first layer at said interface and a second fay surface on said second layer at said interface;

    providing an opening through said layered structure such that said opening extends through said first layer and said second layer;

    providing an internal chamfering device comprising a device housing and a tool bit extendable from said device housing; and

    working simultaneously said opening in said fay surface of said first layer and said opening in said fay surface of said second layer by inserting said internal chamfering device in said opening and extending said tool bit from said device housing of said internal chamfering device without separating said first layer and said second layer.

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