Patents by Inventor David O. Chenault

David O. Chenault 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: 6953917
    Abstract: A method and system for ensuring compliance with regulatory requirements to train, test, perform, evaluate and document identified covered tasks and provide the means to meet governmental and/or industrial standards including measuring applicable physical parameters, recording the steps involved and values of the parameters measured, comparing the steps and values recorded for each covered task with pre-established approved standards and providing a record identifying covered tasks that meet or that do not meet pre-selected approved standards.
    Type: Grant
    Filed: April 10, 2001
    Date of Patent: October 11, 2005
    Inventor: David O. Chenault
  • Publication number: 20010050278
    Abstract: A method and system for ensuring that installations of fittings to plastic pipe meet governmental and/or industrial standards includes measuring physical parameters employed in the application of fittings to plastic pipe, recording the steps involved and values of the parameters measured, comparing the steps and values recorded for each installation with pre-established approved standards and providing a record identifying installations that meet or that do not meet pre-selected approved standards.
    Type: Application
    Filed: April 10, 2001
    Publication date: December 13, 2001
    Inventor: David O. Chenault
  • Patent number: 4253895
    Abstract: This invention relates in general to the manufacture of segmented mirror solar collector troughs and specifically to the method and apparatus employed to initially subject the faceted segments to a lateral compression by the application of a vacuum prior to impregnating the segments in a fiberglass substrate which maintains the compressive force when the vacuum is removed.
    Type: Grant
    Filed: May 4, 1979
    Date of Patent: March 3, 1981
    Assignee: Toltec Industries Inc.
    Inventor: David O. Chenault