Patents Assigned to Digive Limited of York House
  • Method of making a product
    Patent number: 6387319
    Abstract: A method of making a product which is generally impervious to water including the steps of making a generally homogenous mixture of slate particles and clay, setting the mixture as necessary to produce a formable composition, forming the wet mixture to a desired configuration, at least partially drying the formed mixture and subjecting the dried formed mixture to a temperature of at least 1145° C. for a time sufficient for at least some of the clay to convert into a binder to bind together the slate particles.
    Type: Grant
    Filed: January 5, 2001
    Date of Patent: May 14, 2002
    Assignee: Digive Limited of York House
    Inventor: John Dutton