Patent ID: 9243302
Filing Date: 2016-01-26
CPC Classification: A23L,C13B

Claim Text:
1. A maple syrup evaporator adapted for reducing and removing scale, comprising: a primary evaporator pan with a plurality of communicating subchambers such that boiled sap in said primary evaporator pan flows through said communicating subchambers, including, a first subchamber at one end of the flow path within said primary evaporator pan and a second subchamber at the other end of the flow path within said primary evaporator pan; a branched supply line for feeding sap to said first subchamber or alternatively to said second subchamber; a branched outlet for draining partially evaporated syrup from said second subchamber or alternatively from said first subchamber; valve means for selecting whether the sap is fed to said first subchamber or alternatively to said second subchamber, and for selecting whether partially evaporated syrup is drained from said second subchamber or alternatively from said first subchamber; such that control of said valve means may be used to reverse the direction of flow of sap through the primary evaporator pan and thereby re-dissolve built up scale deposits.