Patents by Inventor James K. Darnell

James K. Darnell 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).

  • Horizontal wellpointing method and apparatus
    Patent number: 3998065
    Abstract: A horizontal wellpointing system is provided wherein a trenching vehicle digs a trench while perforated flexible pipe having a filter material is placed along the trench. The pipe is covered as the trench is refilled and a subsequent evacuating pressure is applied to the pipe by an above ground pump.
    Type: Grant
    Filed: October 9, 1975
    Date of Patent: December 21, 1976
    Assignee: Charles F. Smith and Son, Inc.
    Inventor: James K. Darnell