Patents by Inventor Stephen Winterbottom

Stephen Winterbottom has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Diaphragm for a valve
    Patent number: 8998174
    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.
    Type: Grant
    Filed: May 19, 2009
    Date of Patent: April 7, 2015
    Assignee: James Walker & Co. Ltd.
    Inventors: Peter John Warren, Stephen Winterbottom
  • Seal
    Publication number: 20110210521
    Abstract: A seal is described which has good low temperature flexibility and includes a core (3) comprising an elastomer, and an outer layer (7) on the core comprising an elastomer. In some examples described, the Tg of the core is greater than the Tg of the outer layer. Seals described have high chemical resistance as well as good resistance to explosive decompression.
    Type: Application
    Filed: July 16, 2009
    Publication date: September 1, 2011
    Applicant: JAMES WALKER & CO. LTD.
    Inventors: Peter John Warren, Stephen Winterbottom
  • Diaphragm For a Valve
    Publication number: 20110114868
    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.
    Type: Application
    Filed: May 19, 2009
    Publication date: May 19, 2011
    Applicant: JAMES WALKER & CO. LTD.
    Inventors: Peter John Warren, Stephen Winterbottom