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Vent apparatus

  • US 6,383,072 B2
  • Filed: 03/06/2001
  • Issued: 05/07/2002
  • Est. Priority Date: 06/06/1995
  • Status: Expired due to Fees
First Claim
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1. A vent apparatus comprising:

  • a base member including a securing flange adapted to receive external fastening elements to allow said flange to be secured to a surface;

    an attaching portion on said base member which protrudes outwardly from said securing flange and defines a fluid passage;

    said attaching portion including a locking portion defining a plurality of discrete locking locations; and

    a cover member engageable with said locking portion of said base member to adjustably secure said cover member to said base member at a plurality of predetermined distances from said securing flange corresponding to said plurality of discrete locking locations.

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