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Drain valve for freight container

  • US 20060180205A1
  • Filed: 01/23/2006
  • Published: 08/17/2006
  • Est. Priority Date: 01/22/2005
  • Status: Abandoned Application
First Claim
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1. A drain valve for installation in a floor, the valve comprising:

  • a generally tubular housing having an open upper end and an open lower end and laterally closed side walls therebetween;

    a bottom plate closing lower housing end, formed with a throughgoing lower hole, and formed around the lower hole, with an upwardly directed lower valve seat;

    a top plate closing the upper housing end, formed with a throughgoing upper hole, and formed around the respective hole with a downwardly directed upper valve seat; and

    a floatable valve body in the hosing between the plates and movable between an upper position fitted in and blocking the upper seat and clear of the lower seat and a lower position fitted in the lower seat and clear of the upper seat, flow only being possible through the housing in an intermediate position of the ball clear of both of the seats.

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