Patent · US Expired

Water purification system

US4035240A · kind A · utility

3Cited by
9References
1Claims
0Family size

Inventor

Key dates

Filing dateMar 13, 1975
Grant dateJul 12, 1977
Priority date
Expiry dateMar 13, 1995

Classification

  • Technology area (CPC Y)Emerging Cross-Sectional Technologies
  • CPC primaryY02A20/00
  • WIPO fieldChemical engineering
  • WIPO sectorChemistry

Abstract

The water purification apparatus of this invention is used in combination with a domestic hot water heating tank and comprises a water container mounted on top of the tank. Hot tank water is supplied to the container through a passage controlled by a float-actuated needle valve. Water in the container receives additional heat from a heat-radiating pipe which extends from the tank through the container and back to the tank to maintain a continuous circulation. Water vapor formed in the container is carried away through a duct and condenses. A receptacle is provided for receiving condensate from the discharge outlet of the duct.

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