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Waterproof casing

  • US 5,285,894 A
  • Filed: 01/11/1993
  • Issued: 02/15/1994
  • Est. Priority Date: 01/09/1992
  • Status: Expired due to Term
First Claim
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1. A waterproof casing for containing equipment in a watertight manner, comprising:

  • an air flow opening formed in said waterproof casing; and

    an air-permeable waterproof sheet formed of a film and a supporting member and attached to an inside surface of said waterproof casing with said film closing said air flow opening, said film being adapted to let air but not water pass therethrough and said supporting member being adapted to let both air and water pass therethrough.

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