Patent · US Expired

Circulating water heater

US4065054A · kind A · utility

8Cited by
4References
1Claims
0Family size

Assignee

Inventor

Key dates

Filing dateJun 3, 1976
Grant dateDec 27, 1977
Priority date
Expiry dateJun 3, 1996

Classification

  • Technology area (CPC F)Mechanical Engineering; Lighting; Heating
  • CPC primaryF24D3/08
  • WIPO fieldThermal processes and apparatus
  • WIPO sectorMechanical engineering

Abstract

In a circulating water heater, a water heater is located in a flow circuit connected in parallel with a domestic water circuit. A heating circuit is connected in parallel with the domestic water circuit. A change-over valve interconnects the flow circuit containing the water heater with the domestic water circuit and the valve is also connected to the heating circuit. A short-circuit line including a pump interconnects the supply flow line and the return flow line in the flow circuit containing the water heater.

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