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Method and apparatus for adjusting the pitch of a fan blade

  • US 6,592,328 B1
  • Filed: 04/17/2001
  • Issued: 07/15/2003
  • Est. Priority Date: 04/17/2001
  • Status: Expired due to Fees
First Claim
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1. A pitch adjusting assembly for varying the pitch of a fan blade coupled to a hub, said hub rotatable on a hub axis, said fan blade rotatable relative to the hub on a blade axis, said pitch adjusting assembly comprising:

  • a first element rotatable on a first element axis and presenting an elongated pin; and

    a second element rotatable on a second element axis and defining an elongated slot, said pin movable about the first element axis and said slot movable about the second element axis, said element axes being at least substantially perpendicular to one another, said pin extending at least substantially parallel to one of the axes, said slot elongated at least substantially parallel to the other of the axes, said slot receiving the pin at a location offset from both of the axes.

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