Patent · US Expired

Programmable electronic thermostat

US4308991A · kind A · utility

220Cited by
7References
2Claims
0Family size

Assignee

Inventors

Key dates

Filing dateJul 7, 1980
Grant dateJan 5, 1982
Priority date
Expiry dateJul 7, 2000

Classification

  • Technology area (CPC F)Mechanical Engineering; Lighting; Heating
  • CPC primaryF23N2237/06
  • WIPO fieldControl
  • WIPO sectorInstruments

Abstract

A space thermostat for controlling temperature at different levels during different time periods includes a programmable microprocessor which has been pre-programmed to provide a plurality of chronologically annunciated displays. Each display contains a time and temperature within a specific time range. A multi-segment keyboard is provided to enable the homeowner to set the correct clock time and day of the week, to recall each display, and to change, if necessary, the time and temperature of each display so as to establish a desired seven-day time-temperature schedule.

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