Patents by Inventor David Brin Tidwell

David Brin Tidwell 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: 8181888
    Abstract: A method to assemble a nozzle-fastener assembly including: inserting a hollow stem through a wash liquid direction device; inserting the hollow stem through a mounting block; positioning an inside surface of the mounting block against a curved surface of a wash liquid distribution pipe and an outside surface of the block against the wash liquid direction device; attaching the nozzle-fastener to an aperture in the pipe such that an inlet to the hollow stem is in fluid communication with a wash liquid passage in the pipe, wherein the stem extends through the mounting block and the wash liquid direction device, and the stem includes a outlet for the wash liquid passing through the hollow stem and to the wash liquid direction device, and wherein the wash liquid direction device and mounting block are held together by the attachment of the nozzle-fastener to the aperture in the wash liquid pipe.
    Type: Grant
    Filed: May 3, 2010
    Date of Patent: May 22, 2012
    Assignee: Andritz Inc.
    Inventors: Todd S. Grace, David Hollis Gordy, David Brin Tidwell
  • Publication number: 20100205796
    Abstract: A method to assemble a nozzle-fastener assembly including: inserting a hollow stem through a wash liquid direction device; inserting the hollow stem through a mounting block; positioning an inside surface of the mounting block against a curved surface of a wash liquid distribution pipe and an outside surface of the block against the wash liquid direction device; attaching the nozzle-fastener to an aperture in the pipe such that an inlet to the hollow stem is in fluid communication with a wash liquid passage in the pipe, wherein the stem extends through the mounting block and the wash liquid direction device, and the stem includes a outlet for the wash liquid passing through the hollow stem and to the wash liquid direction device, and wherein the wash liquid direction device and mounting block are held together by the attachment of the nozzle-fastener to the aperture in the wash liquid pipe.
    Type: Application
    Filed: May 3, 2010
    Publication date: August 19, 2010
    Applicant: Andritz Inc
    Inventors: Todd S. Grace, David Hollis Gordy, David Brin Tidwell
  • Patent number: 7708207
    Abstract: A nozzle assembly for spraying a wash liquid towards a pulp mat, the assembly including an integral fastener-nozzle having a conduit for the wash liquid, an outlet to the conduit for discharging the wash liquid and an attachment to secure the fastener-nozzle to an aperture in a wash liquid pipe, and a wash liquid direction device extending outwardly from the pipe and adapted to direct the wash liquid from the outlet towards the pulp mat.
    Type: Grant
    Filed: September 5, 2006
    Date of Patent: May 4, 2010
    Assignee: Andritz Inc.
    Inventors: Todd S. Grace, David Hollis Gordy, David Brin Tidwell
  • Publication number: 20070163630
    Abstract: A nozzle assembly for spraying a wash liquid towards a pulp mat, the assembly including an integral fastener-nozzle having a conduit for the wash liquid, an outlet to the conduit for discharging the wash liquid and an attachment to secure the fastener-nozzle to an aperture in a wash liquid pipe, and a wash liquid direction device extending outwardly from the pipe and adapted to direct the wash liquid from the outlet towards the pulp mat.
    Type: Application
    Filed: September 5, 2006
    Publication date: July 19, 2007
    Applicant: ANDRITZ INC
    Inventors: Todd S. Grace, David Hollis Gordy, David Brin Tidwell