Patent · US Active

Electronically controlled hot water recirculation pump

US8594853B2 · kind B2 · utility

4Cited by
3References
1Claims
0Family size

Assignee

Inventors

Key dates

Filing dateFeb 17, 2011
Grant dateNov 26, 2013
Priority date
Expiry dateFeb 1, 2032

Classification

  • Technology area (CPC F)Mechanical Engineering; Lighting; Heating
  • CPC primaryF24D19/1051
  • WIPO fieldThermal processes and apparatus
  • WIPO sectorMechanical engineering

Abstract

A water pump controlled by a microcontroller and operated to pump hot water for specific recirculation periods during a multi-day cycle. The recirculation periods are determined from hot water usage data logged by the microcontroller during a logging period occurring in the previous multi-day cycle. A preferred cycle is during a seven-day, or one-week, period.

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