Patents by Inventor Colin E Tallis

Colin E Tallis 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).

  • Potable water supply components
    Patent number: 5919519
    Abstract: A method of treating a potable water supply component, for example a pipe, pipe coupling or tap body, made of a leaded copper-based alloy such as a brass or gun metal, in order to inhibit the leach out of lead from the alloy by potable water during service, comprises treating at least internal surfaces of the component with an aqueous solution of an acid that forms a substantially water insoluble compound with lead. The acid is preferably ortho-phosphoric acid.
    Type: Grant
    Filed: May 17, 1995
    Date of Patent: July 6, 1999
    Assignee: IMI Yorkshire Fittings Limited
    Inventor: Colin E Tallis