Patents by Inventor John F. Lange

John F. Lange 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 making a high density detergent composition which includes selected recycle streams for improved agglomerate
    Patent number: 5516448
    Abstract: A process for continuously preparing high density detergent composition is provided. The process comprises the steps of: (a) continuously charging a detergent surfactant paste and dry starting detergent material into a high speed mixer/densifier to obtain agglomerates; (b) mixing the agglomerates in a moderate speed mixer/densifier to further densify, build-up and agglomerate the agglomerates; (c) feeding the agglomerates into a conditioning apparatus for improving the flow properties of the agglomerates and for separating the agglomerates into a first agglomerate mixture and a second agglomerate mixture; (d) recycling the first agglomerate mixture into the high speed mixer/densifier for further agglomeration; (e) admixing adjunct detergent ingredients to the second agglomerate mixture so as to form the high density detergent composition.
    Type: Grant
    Filed: September 20, 1994
    Date of Patent: May 14, 1996
    Assignee: The Procter & Gamble Company
    Inventors: Scott W. Capeci, John F. Lange, David J. Smith, Nigel S. Roberts
  • Process for making a high density detergent composition in a single mixer/densifier with selected recycle streams for improved agglomerate properties
    Patent number: 5489392
    Abstract: A process for continuously preparing high density detergent composition is provided. The process comprises the steps of: (a) continuously charging a detergent surfactant paste and dry starting detergent material into a mixer/densifier for densification and build-up to obtain agglomerates; (b) feeding the agglomerates into a conditioning apparatus for improving the flow properties of the agglomerates and for separating the agglomerates into a first agglomerate mixture and a second agglomerate mixture; (d) recycling the first agglomerate mixture into the mixer/densifier for further agglomeration; (e) admixing adjunct detergent ingredients to the second agglomerate mixture so as to form the high density detergent composition.
    Type: Grant
    Filed: September 20, 1994
    Date of Patent: February 6, 1996
    Assignee: The Procter & Gamble Company
    Inventors: Scott W. Capeci, John F. Lange, David J. Smith, Nigel S. Roberts