发明名称 |
CHECK VALVE FLAP FOR FLUID INJECTOR |
摘要 |
A backflow-prevention system that substantially prevents contaminant backflow at a treatment site. The system includes a fluid ejector tube for insertion into the patient's mouth and a backflow prevention device that receives fluid from the fluid ejector tube. The backflow prevention device includes an internally positioned valve member. The valve member limits contaminant backflow. The valve member is movable between open and closed positions based on a vacuum pressure condition in the system.
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申请公布号 |
US2012305100(A1) |
申请公布日期 |
2012.12.06 |
申请号 |
US201213584398 |
申请日期 |
2012.08.13 |
申请人 |
BUSHMAN RICHARD PAUL;SCHUELLER JERRY;RJC PRODUCTS LLC |
发明人 |
BUSHMAN RICHARD PAUL;SCHUELLER JERRY |
分类号 |
E03C1/10 |
主分类号 |
E03C1/10 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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