Patents by Inventor Dan Clarahan

Dan Clarahan 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).

  • Publication number: 20100206505
    Abstract: A machine and process for production of wet formed fibrous webs, in which the web is formed from a suspension on a fabric and subjected to a final drying process such as a Yankee dryer roll, while further subjecting the Web to an intermediate drying on a high-heat-transfer roll, with or without hood, before the final drying process. The intermediate dryer roll has a solid, gas-impermeable surface, and a localized heat source directly heats the dryer to a higher temperature than in the final drying process.
    Type: Application
    Filed: February 13, 2009
    Publication date: August 19, 2010
    Inventors: Dan Clarahan, Ron Gropp, Frances Ropp, Paul Arnold
  • Publication number: 20100206506
    Abstract: A machine and process for production of a fibrous web, with a forming section (2) in which the web is formed from a pulp suspension on a fabric (3) and with a final drying unit (4). In at least one further drying step, a rotatable dryer (5) with a hood (6) is located after the forming section (2) and before the final drying unit (4). The additional dryer (5) has a gas-impermeable exterior surface (7) which is directly heated by a combustion unit such a gas or oil fired burner (9).
    Type: Application
    Filed: February 13, 2009
    Publication date: August 19, 2010
    Inventors: Dan Clarahan, Ron Gropp, Frances Gropp, Paul Arnold