Patent · US Expired

Vortex eliminator

US4253490A · kind A · utility

9Cited by
5References
6Claims
0Family size

Assignee

Inventor

Key dates

Filing dateMar 26, 1979
Grant dateMar 3, 1981
Priority date
Expiry dateMar 26, 1999

Classification

  • Technology area (CPC Y)Emerging Cross-Sectional Technologies
  • CPC primaryY10T137/86348
  • WIPO fieldEngines, pumps, turbines
  • WIPO sectorMechanical engineering

Abstract

In combination, a subterranean liquid storage tank, a pump suction pipe mounted therein and extending substantially vertically from the top of the tank toward the bottom thereof, and a disc member positioned below and in vertical alignment with the lower end of said pipe, the member having a pedestal which rests at the bottom of the storage tank, both the disc and said pedestal being flexible and compressible to a size enabling insertion into and withdrawal from the tank by way of the pipe. Preferably the disc and its supporting member will be made of a flexible foam.

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