CN101614292B - 倒流防止器 - Google Patents
倒流防止器 Download PDFInfo
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- CN101614292B CN101614292B CN2009100632509A CN200910063250A CN101614292B CN 101614292 B CN101614292 B CN 101614292B CN 2009100632509 A CN2009100632509 A CN 2009100632509A CN 200910063250 A CN200910063250 A CN 200910063250A CN 101614292 B CN101614292 B CN 101614292B
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CN2009100632509A CN101614292B (zh) | 2009-07-21 | 2009-07-21 | 倒流防止器 |
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CN2009100632509A CN101614292B (zh) | 2009-07-21 | 2009-07-21 | 倒流防止器 |
Publications (2)
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CN101614292A CN101614292A (zh) | 2009-12-30 |
CN101614292B true CN101614292B (zh) | 2011-05-18 |
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CN2009100632509A Active CN101614292B (zh) | 2009-07-21 | 2009-07-21 | 倒流防止器 |
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Families Citing this family (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN101776168B (zh) * | 2010-03-12 | 2011-11-23 | 曾祥炜 | 梭式高温高压焊接止回阀 |
CN101985989A (zh) * | 2010-10-12 | 2011-03-16 | 杭州春江阀门有限公司 | 一种带有故障发信装置的倒流防止器 |
CN102072342B (zh) * | 2010-12-04 | 2012-07-04 | 福建高中压阀门科技有限公司 | 同轴双止回阀瓣差程装置 |
CN103511687B (zh) * | 2013-09-17 | 2017-01-04 | 天津市倒流防止器制造有限公司 | 一种新型倒流防止器结构 |
TWI537529B (zh) * | 2015-02-17 | 2016-06-11 | Separate gas tools | |
CN110220021B (zh) * | 2019-06-20 | 2024-04-09 | 浙江班尼戈流体控制有限公司 | 一种户用防爆管一体阀 |
Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN2371405Y (zh) * | 1999-04-18 | 2000-03-29 | 宋绍章 | 旋启式燃气阀 |
CN2381857Y (zh) * | 1999-08-17 | 2000-06-07 | 北京融洋技术研究所 | 液体逆流防止器 |
CN2395103Y (zh) * | 1999-06-21 | 2000-09-06 | 姜校林 | 磁力预紧密封式止回阀 |
CN2744741Y (zh) * | 2004-08-19 | 2005-12-07 | 李四波 | 防污隔断阀 |
CN201288864Y (zh) * | 2008-10-29 | 2009-08-12 | 张明亮 | 焊接式不锈钢倒流防止器 |
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2009
- 2009-07-21 CN CN2009100632509A patent/CN101614292B/zh active Active
Patent Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN2371405Y (zh) * | 1999-04-18 | 2000-03-29 | 宋绍章 | 旋启式燃气阀 |
CN2395103Y (zh) * | 1999-06-21 | 2000-09-06 | 姜校林 | 磁力预紧密封式止回阀 |
CN2381857Y (zh) * | 1999-08-17 | 2000-06-07 | 北京融洋技术研究所 | 液体逆流防止器 |
CN2744741Y (zh) * | 2004-08-19 | 2005-12-07 | 李四波 | 防污隔断阀 |
CN201288864Y (zh) * | 2008-10-29 | 2009-08-12 | 张明亮 | 焊接式不锈钢倒流防止器 |
Non-Patent Citations (1)
Title |
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JP特开平11-223268A 1999.08.17 |
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CN101614292A (zh) | 2009-12-30 |
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Legal Events
Date | Code | Title | Description |
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C06 | Publication | ||
PB01 | Publication | ||
C10 | Entry into substantive examination | ||
SE01 | Entry into force of request for substantive examination | ||
C14 | Grant of patent or utility model | ||
GR01 | Patent grant | ||
C56 | Change in the name or address of the patentee |
Owner name: WUHAN DAYU VALVE CO., LTD. Free format text: FORMER NAME: WUHAN DAYU VALVE MANUFACTURING CO., LTD. |
|
CP03 | Change of name, title or address |
Address after: 430056 Hubei city of Wuhan province Wuhan economic and Technological Development Zone Science and Technology Industrial Park Yang Dun Patentee after: Wuhan Dayu Valve Co., Ltd. Address before: 430056 Hubei city of Wuhan province Zhuankou Wuhan economic and Technological Development Zone Science and Technology Industrial Park Wuhan Dun Yang Yu Valve Manufacturing Co. Ltd Patentee before: Wuhan Dayu Valve Manufacturing Co., Ltd. |