发明名称 ONE-PIECE SELF VENTING DRAIN VALVE
摘要 <p>A self-venting drain valve for draining liquid from a vessel having an end opening through which liquid may drain and gas may simultaneously enter. The drain valve comprises a body portion and a stem portion. The body portion having a substantially tubular, internally threaded section and a vent permitting gas to enter. The stem portion has an externally threaded section and an aperture where liquid is permitted to drain from the vessel. The stem portion can be closed by engaging the externally threaded section with the internally threaded section, thereby preventing liquid and gas flow by sealing the vent and the aperture. The stem portion can be opened by disengaging the externally threaded section from the internally threaded section, thereby permitting liquid and gas flow simultaneously and separately by unsealing the aperture to permit liquid to drain from the vessel and unsealing the vent to permit gas to enter the vessel</p>
申请公布号 EP2126329(A1) 申请公布日期 2009.12.02
申请号 EP20080732313 申请日期 2008.03.14
申请人 HONEYWELL INTERNATIONAL INC. 发明人 GERWIN, WESTON, H.;LYNCH, MICHAEL, S.
分类号 F02M37/04;F02M37/16 主分类号 F02M37/04
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