초록 ▼

An electrical control system for regulating the humidity of an enclosed atmosphere in a dough proof box or the like, comprising a cast metal steamer tray, incorporating an electrical heating element operable to heat the tray between selected upper and lower temperature limits determined by a thermos

An electrical control system for regulating the humidity of an enclosed atmosphere in a dough proof box or the like, comprising a cast metal steamer tray, incorporating an electrical heating element operable to heat the tray between selected upper and lower temperature limits determined by a thermostat responsive to temperatures of the tray casting. A time controlled valve supplies water to the tray for selected time intervals when the thermostat senses the tray\s upper temperature. A humidistat controls operation of the thermostat. As a result, the steamer tray is heated between high and low limits and supplied with measured amounts of water to effect rapid generation of limited quantities of steam to satisfy the humidity levels demanded by the humidistat.

대표청구항 ▼

Apparatus for controlling the humidity of an enclosed atmosphere comprising: an open top steamer tray, a heater in intimate heat transfer relation with said tray, a time regulated valve operable to supply water to said tray for selected time periods, thermal responsive means operably responsive to t

Apparatus for controlling the humidity of an enclosed atmosphere comprising: an open top steamer tray, a heater in intimate heat transfer relation with said tray, a time regulated valve operable to supply water to said tray for selected time periods, thermal responsive means operably responsive to the temperature of said tray for activating and deactivating said heater when said tray reaches selected low and high temperatures, respectively, and for actuating said valve to supply water to said tray when said heater is deactivated at said high temperature, and humidity responsive means for controlling activation of said thermal responsive means.