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Head gear apparatus

  • US 6,393,617 B1
  • Filed: 06/16/2000
  • Issued: 05/28/2002
  • Est. Priority Date: 01/16/1998
  • Status: Expired due to Term
First Claim
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1. A head gear apparatus, comprising:

  • a head covering configured to rest on a head of a user; and

    a fan supported by said head covering, said fan having (i) a number of blades, and (ii) a motor for rotating said number of blades in a path of movement, wherein each of said number of blades defines (i) a leading blade surface relative to said path of movement, and (ii) a trailing blade surface relative to said path of movement, and wherein (i) said leading blade surface possesses a convex shape, and (ii) said trailing blade surface possesses a concave shape.

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