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Vented ball valve with lock-out ring

  • US 5,360,036 A
  • Filed: 08/24/1992
  • Issued: 11/01/1994
  • Est. Priority Date: 08/24/1992
  • Status: Expired due to Term
First Claim
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1. A vented valve assembly comprising:

  • a valve body having first and second flow-through ends with a valve member receiving chamber thereinbetween;

    a valve member disposed within said chamber, said valve member having a throughbore therein in operable alignment with said first end second flow-through ends and at least one valve member vent hole in flow communication with said throughbore;

    means to rotate said valve member in and out of flow-through alignment with said first and second ends, said means to rotate said valve member comprising a stem extending through and being rotatably mounted within a stem receiving passage within said valve body communicating with said chamber, said stem being in cooperative relationship with said valve member; and

    ,atmospheric vent means in selected flow communication with said valve member vent hole, cooperative with said means to rotate said valve member, said atmospheric vent means including said valve body having a vent hole therethrough in flow communication with said atmosphere and a stem receiving passage, said stem receiving passage being in flow communication with said valve body vent hole and said chamber, said stem and stem receiving passage comprising sealing means selectively positionable providing a seal above, on, or below said valve body vent hole for controlling the venting of said fluids.

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