Patents by Inventor David McCarville

David McCarville 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: 5980693
    Abstract: An extended nip press apparatus is disclosed for pressing a web of paper extending therethrough. The apparatus includes a rotatable backing roll and a press shoe having a concave surface which cooperates with the backing roll. The arrangement is such that the concave surface and the backing roll define therebetween an elongated pressing section for the passage therethrough of the web. The shoe includes an upstream portion and a device for urging the upstream portion toward the backing roll. A downstream portion extends from the upstream portion, the downstream portion being resiliently disposed relative to the upstream portion. A further device selectively urges the downstream portion toward the backing roll for controlling a pressure profile applied by the shoe to the web for inhibiting delamination of the web.
    Type: Grant
    Filed: March 26, 1998
    Date of Patent: November 9, 1999
    Assignee: Beloit Technologies, Inc.
    Inventors: Shihua Liang, David McCarville, David Lange