发明名称 Toilet discharge valve assembly having moveable buoyant float therein
摘要 A toilet flush valve that has a moveable buoyant float therein, wherein the float has an open bottom end to trap air therein and wherein the housing includes controls to selectively release air to allow the float to move upwardly therein to permit flushing. By timing when one or two air vents on the housing are open, the duration and volume of the flush can be controlled, with the buoyancy provided by the water lifting the float to open the flush valve. This provides a flushing system with minimal activation energy.
申请公布号 US9359752(B2) 申请公布日期 2016.06.07
申请号 US201313943991 申请日期 2013.07.17
申请人 Fluidmaster, Inc. 发明人 Le Tuan;Cook Steve;Sampson Adam
分类号 E03D1/14 主分类号 E03D1/14
代理机构 Gordon Rees Scully Mansukhani LLP 代理人 Gordon Rees Scully Mansukhani LLP
主权项 1. A flush valve, comprising: (a) a housing dimensioned to be positioned over a drain in a toilet tank; (b) a float assembly being vertically moveable within the housing, the float assembly configured to seal the drain when the float assembly is in a lowered position, and to open the drain when the float assembly is in a raised position, wherein the float assembly comprises a float having an open bottom end to trap air therein, and wherein an air chamber is formed between the interior of the housing and the exterior of the float assembly; (c) an air passageway connecting the air chamber in the housing to external ambient air; (d) an actuator for selectively opening and closing the air passageway; and (e) an air passageway continuously connecting the interior of the float to external ambient air through a flush cycle, thereby keeping the air pressure in the interior of the float at ambient pressure through the flush cycle.
地址 San Juan Capistrano CA US