Patent · US Expired

Cook-by-weight microwave oven

US4441002A · kind A · utility

27Cited by
13References
6Claims
0Family size

Assignee

Inventors

Key dates

Filing dateMar 1, 1982
Grant dateApr 3, 1984
Priority date
Expiry dateMar 1, 2002

Classification

  • Technology area (CPC H)Electricity
  • CPC primaryH05B6/72
  • WIPO fieldElectrical machinery, apparatus, energy
  • WIPO sectorElectrical engineering

Abstract

A microprocessor controlled microwave oven having a scale for providing a signal corresponding to the weight of a food body in the cavity to the microprocessor. Through a control panel, the operator inputs a second signal corresponding to the initial temperature of the food body. From these signal inputs, the microprocessor calculates the microwave exposure time period to raise the temperature of the food body to a predetermined temperature or to cook the food body. In accordance with the time period, the microprocessor then controls the magnetron through one or more active cycles as selected.

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