Patents Assigned to GDC Engineering, Inc.
  • Ground water sampling device
    Patent number: 5327981
    Abstract: A groundwater sampler is disclosed which is adapted for reuse at multiple depths during a single boring, which is simple in design, which may be built with but a small number of parts, which is easy to used which is easy to decontaminate, and which is resistant to clogging from silts and fine sands.
    Type: Grant
    Filed: September 21, 1992
    Date of Patent: July 12, 1994
    Assignee: GDC Engineering, Inc.
    Inventor: Michael A. Morgan