Patents by Inventor David R. Nassano

David R. Nassano 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).

  • Patent number: 5496487
    Abstract: The present invention provides a process which produces high density detergent compositions especially suitable for commercialization as a compact detergent product. The process can be easily retrofitted into existing spray drying detergent-making production plants in that it utilizes existing equipment so as to economize the transition from "tower" based to "non-tower" based detergent manufacturing plants. The process comprises the steps of: (a) agglomerating starting detergent ingredients in a mixer/densifier such that detergent agglomerates having a density of at least 650 g/l are formed; (b) conditioning the agglomerates in a spray-drying tower so as to enhance the free flowability of the detergent agglomerates: and (c) admixing adjunct detergent ingredients in the detergent agglomerates, thereby producing the high density granular detergent composition.
    Type: Grant
    Filed: August 26, 1994
    Date of Patent: March 5, 1996
    Assignee: The Procter & Gamble Company
    Inventors: Scott W. Capeci, David R. Nassano, Robert G. Welch
  • Patent number: 5108646
    Abstract: A process for making detergent builder agglomerates by mixing crystalline aluminosilicate or layered silicate detergent builder with selected binder in an energy-intensive mixer to form free flowing agglomerates. The binder is an anionic synthetic surfactant paste or a water-soluble polymer containing at least about 50% by weight of ethylene oxide, and optionally may contain minor amounts of ethoxylated nonionic surfactant. The agglomerates are also substantially free of amorphous alkali metal silicates if free water is present.
    Type: Grant
    Filed: October 26, 1990
    Date of Patent: April 28, 1992
    Assignee: The Procter & Gamble Company
    Inventors: Lisa A. Beerse, David R. Nassano, Eugene J. Pancheri, John A. Sagel