基本信息:
- 专利标题： Sewer relief valve
- 专利标题（中）：通风皮瓣漏极线。
- 申请号：EP84305986.6 申请日：1984-08-31
- 公开(公告)号：EP0172966A1 公开(公告)日：1986-03-05
- 发明人： Houston, James M., Jr. , Baker, John W.
- 申请人： Houston, James M., Jr. , Baker, John W.
- 申请人地址： 651 Brighton Drive Lawrenceville Georgia 30245 US
- 专利权人： Houston, James M., Jr.,Baker, John W.
- 当前专利权人： Houston, James M., Jr.,Baker, John W.
- 当前专利权人地址： 651 Brighton Drive Lawrenceville Georgia 30245 US
- 代理机构： Dealtry, Brian
- 主分类号： E03F5/12
- IPC分类号： E03F5/12 ; E03F5/08
摘要：
An improved sewer relief valve which is vandal-proof and automatically opens responsive to a back flow of sewage and drain water within a plumbing system.
The sewer relief valve comprises a coupling member (15) adapted to connect to a sewer line and including a material flow opening (23), a lid (22) connectable to said coupling member to obstruct said material flow opening of said coupling member means (36) for locking said lid in obstruction of said material flow opening of said coupling member; float means (30) comprising a buoyant member (31) operatively disposed within said coupling; and means (40, 41, 85) for venting a build-up of air pressure within said coupling member to allow a back flow of sewage to rise within said coupling member and displace said float means, for unlocking said lid and permitting the lid to be opened so as to unblock said material flow opening.
The sewer relief valve comprises a coupling member (15) adapted to connect to a sewer line and including a material flow opening (23), a lid (22) connectable to said coupling member to obstruct said material flow opening of said coupling member means (36) for locking said lid in obstruction of said material flow opening of said coupling member; float means (30) comprising a buoyant member (31) operatively disposed within said coupling; and means (40, 41, 85) for venting a build-up of air pressure within said coupling member to allow a back flow of sewage to rise within said coupling member and displace said float means, for unlocking said lid and permitting the lid to be opened so as to unblock said material flow opening.