Patents by Inventor Bradley B. Nielsen

Bradley B. Nielsen 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: 4452619
    Abstract: A pleated media filter element is disclosed which includes pleat spacers which are an integral structural part of the pleated media. The construction of the pleat spacers is accomplished by scoring on the unfolded media a continuous line pattern upon the portion of the media which, when folded, forms a pleat tip of the element. When the scored media is folded into pleats the patterns each define areas on the respective pleat tips which are integral structural parts of the media itself. The configuration of the pattern causes a portion of the media at the pleat tip to project transversely relative to the respective pleat, serving thereby as an integral spacer to space the pleat apart from the pleats on either side thereof.
    Type: Grant
    Filed: June 18, 1982
    Date of Patent: June 5, 1984
    Assignee: Donaldson Company, Inc.
    Inventors: Mervin E. Wright, Sheila C. Peyraud, Bradley B. Nielsen