Patent ID: 7770806
Filing Date: 2010-08-10
Classification: F24F,F25B,G05D,Y02B

Abstract:
1. An apparatus for maintaining a substantially constant temperature within a space within an enclosure, the apparatus comprising: a variable-capacity temperature changing system for changing the temperature within the space by at least one of adding heat to or removing heat from the space; a temperature sensor positioned and configured to sense a present temperature within at least one of the space or air drawn from the space; an input device configured to receive an input temperature set point from an operator of the temperature changing system; a controller that is in communication with the input device and in control of the variable-capacity temperature changing system, wherein the controller is configured to automatically continuously gradually change the capacity of the variable-capacity temperature changing system so that the temperature within the space asymptotically approaches the input temperature set point, and wherein the controller comprises: