Patents by Inventor Stephen W Nelson

Stephen W Nelson 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).

  • Method and apparatus for providing a purified resource in a manufacturing facility
    Patent number: 6146266
    Abstract: A method and apparatus provides a resource capable of affecting the manufacture of a product to a bay and a chase. Clean resource is supplied to the bay where it is used to affect the manufacture of a product in one or more steps highly sensitive to contaminants in the resource. The resource contaminated by the manufacture of the product is then sent to a chase where it is further used to affect the manufacture of the same or a different product in steps that are less sensitive to the contamination of the resource. Because the bay is most sensitive to contaminants in the resource, the impurified resource received at the chase may not adversely affect the manufacture of products in the chase and thus, supplying a clean resource to the chase is unnecessary.
    Type: Grant
    Filed: November 17, 1997
    Date of Patent: November 14, 2000
    Assignee: CH2MHill Industrial Design Corporation
    Inventors: Michael D O'Halloran, Wilmar A Kohne, Stephen W Nelson
  • Apparatus for providing a purified resource in a manufacturing facility
    Patent number: 5972060
    Abstract: A method and apparatus provides a resource capable of affecting the manufacture of a product to a bay and a chase. Clean resource is supplied to the bay where it is used to affect the manufacture of a product in one or more steps highly sensitive to contaminants in the resource. The resource contaminated by the manufacture of the product is then sent to a chase where it is further used to affect the manufacture of the same or a different product in steps that are less sensitive to the contamination of the resource. Because the bay is most sensitive to contaminants in the resource, the impurified resource received at the chase may not adversely affect the manufacture of products in the chase and thus, supplying a clean resource to the chase is unnecessary.
    Type: Grant
    Filed: October 9, 1996
    Date of Patent: October 26, 1999
    Assignee: CH2MHill Industrial Design Corporation
    Inventors: Michael D O'Halloran, Wilmar A Kohne, Stephen W Nelson