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ANIMAL HOUSING

  • US 3,877,420 A
  • Filed: 11/15/1973
  • Issued: 04/15/1975
  • Est. Priority Date: 11/15/1973
  • Status: Expired due to Term
First Claim
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1. A controlled environment animal housing system, comprising:

  • an enclosure having an air passageway in a wall thereof, housing means permeable to vertical air flow carried within said enclosure and set back from said air passageway, blower means mounted in said enclosure to suck air downwardly through said housing means, said bloweer means having a blown air output directed within said enclosure to a space above said housing means for producing a vertical downward air flow through and past said housing means. exhaust means adapted to vent from said enclosure some of the blown air output of said blower means, and thereby establish an inward replenishing flow of air through said air passageway, said vertical downward air flow and said set back of said housing means cooperating to cause said inward replenishing flow of air to by-pass said housing means, and filter means positioned in the blown air output path of said blower means to filter the air introduced into said housing means and vented from said enclosure.

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