Invention Grant
- Patent Title: Diaphragm for a valve
- Patent Title (中): 阀门隔膜
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Application No.: US12993020Application Date: 2009-05-19
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Publication No.: US08998174B2Publication Date: 2015-04-07
- Inventor: Peter John Warren , Stephen Winterbottom
- Applicant: Peter John Warren , Stephen Winterbottom
- Applicant Address: GB Woking, Surrey
- Assignee: James Walker & Co. Ltd.
- Current Assignee: James Walker & Co. Ltd.
- Current Assignee Address: GB Woking, Surrey
- Agency: Hodgson Russ LLP
- Priority: GB0809084.7 20080519
- International Application: PCT/GB2009/050537 WO 20090519
- International Announcement: WO2009/141647 WO 20091126
- Main IPC: F16K31/00
- IPC: F16K31/00 ; F16K1/00 ; F16K15/00 ; B32B25/08 ; B32B7/12 ; B32B25/14 ; F16K7/12 ; B29C35/02 ; B29C65/50 ; B29C65/00 ; B29K21/00 ; B29L31/00
Abstract:
A diaphragm (20) for a diaphragm valve is described. The diaphragm (20) has a body (22) comprising a first elastomer and a resistant layer (24) comprising a second elastomer having a different composition or formulation. Diaphragms described in examples have good flexibility with a high level of chemical resistance and low surface adhesion. A fixing attachment for fixing the diaphragm in the valve is also described.
Public/Granted literature
- US20110114868A1 Diaphragm For a Valve Public/Granted day:2011-05-19
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