Patents by Inventor Alan Melvin Van Sloten

Alan Melvin Van Sloten 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).

  • Process for producing cement clinker containing blast furnace slag
    Patent number: 5976243
    Abstract: Undried blast furnace slag, for example, granulated blast furnace slag having a water content of 3 to 20, generally 5 to 15%, by weight, is introduced to hot clinker in a cooler downstream of a cement kiln; the water is volatilized or evaporated in the cooler to provide a cement clinker having an effective content of dried blast furnace slag free of water; this permits use of blast furnace slag in a blended cement without the need for separate special steps for drying the slag.
    Type: Grant
    Filed: September 24, 1998
    Date of Patent: November 2, 1999
    Assignee: Lafarge Canada Inc.
    Inventors: David Bridson Oates, Alan Melvin Van Sloten, Kevin Moire Cail