Patents by Inventor Kofi Aduwusu

Kofi Aduwusu 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 capillary dewatering of foam materials and foam materials produced thereby
    Patent number: 6240654
    Abstract: A method and several exemplary apparatus for capillary dewatering of foam materials. The apparatus may include felt which is applied to an exposed face of the foam material, or a double felt arrangement applied to two opposed surfaces of the foam material. The apparatus may provide a temperature differential between the two exposed surfaces of the foam material. An alternative embodiment utilizes a roll having a capillary dewatering medium. The capillary dewatering medium may be maintained at a vacuum either above or below the breakthrough vacuum of the capillaries. The disclosed apparatus and method is particularly useful for dewatering foams having relatively fine open capillaries.
    Type: Grant
    Filed: October 13, 2000
    Date of Patent: June 5, 2001
    Assignee: The Proctor & Gamble Company
    Inventors: Gerald Martin Weber, Osman Polat, Daniel Joseph Valerio, Jr., Kofi Aduwusu, Thomas Allen Desmarais
  • Process for capillary dewatering of foam materials and foam materials produced thereby
    Patent number: 6158144
    Abstract: This invention relates to a method and several exemplary apparatus for capillary dewatering of foam materials. The apparatus may include felt which is applied to an exposed face of the foam material, or a double felt arrangement applied to two opposed surfaces of the foam material. The apparatus may provide a temperature differential between the two exposed surfaces of the foam material. An alternative embodiment utilizes a roll having a capillary dewatering medium. The capillary dewatering medium may be maintained at a vacuum either above or below the breakthrough vacuum of the capillaries. The disclosed apparatus and method are particularly useful for dewatering foams having relatively fine open capillaries.
    Type: Grant
    Filed: July 14, 1999
    Date of Patent: December 12, 2000
    Assignee: The Procter & Gamble Company
    Inventors: Gerald Martin Weber, Osman Polat, Daniel Joseph Valerio, Jr., Kofi Aduwusu, Thomas Allen Desmarais