Patent · US Expired

Storage pond

US4451173A · kind A · utility

11Cited by
9References
4Claims
0Family size

Assignee

Inventors

Key dates

Filing dateJul 9, 1982
Grant dateMay 29, 1984
Priority date
Expiry dateJul 9, 2002

Classification

  • Technology area (CPC Y)Emerging Cross-Sectional Technologies
  • CPC primaryY02E30/30
  • WIPO fieldEngines, pumps, turbines
  • WIPO sectorMechanical engineering

Abstract

A pond for the storage of hazardous materials, such as irradiated nuclear fuel elements, under water. Upper (8) and lower (6) impervious membranes extend without interruption beneath the floor (1) of the pond and the edges of the membranes lead into a trench (9) surrounding the pond. Any leakage through the floor is directed normally by the upper membrane (8) into the trench (9). The lower membrane (6) provides an additional impervious barrier in the event of a leak in the upper membrane (8) and again directs the leakage into the trench thereby avoiding contamination of the ground beneath the pond.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.