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公开(公告)号：US20170298605A1
公开(公告)日：2017-10-19
申请号：US15637695
申请日：2017-06-29
发明人： William A. Stanaland
CPC分类号： E03F5/041 , E03C1/296 , E03F5/0407 , Y10T137/266
摘要： An anti-oscillation valve for and in a trap primer to restrict the flow of water from the supply line to an upper chamber of the trap primer and to facilitate the flow of water from the upper chamber to the supply line. The anti-oscillation valve having a body with a water supply bore provided therethrough. The bore includes portions defining an inlet and an outlet. First and second bore shoulders are formed in the bore. A filter screen is retained in engagement with the first bore shoulder. An anti-oscillation valve disc freely rests on the second bore shoulder and is retained between the first bore shoulder and the second bore shoulder. The anti-oscillation valve disc includes a valve disc orifice defined through and communicating the inlet with the outlet.
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公开(公告)号：US20170298606A1
公开(公告)日：2017-10-19
申请号：US15637771
申请日：2017-06-29
发明人： William A. Stanaland
CPC分类号： E03C1/296 , E03F5/0407 , E03F5/041 , Y10T137/266
摘要： A method for distributing water from a trap primer to at least one trap. The method includes providing a trap primer having an upper chamber separated by a flexible diaphragm from a lower chamber, and having a resilient gas enclosure located in the lower chamber. Water is provided to the trap primer at a line pressure charging the upper and lower chambers. As a result of a reduction in line pressure, the diaphragm is disengaged from a valve stem opening an orifice and causing the flow of water from the lower chamber to at least one trap.
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