Patent ID: 7913925
Filing Date: 2011-03-29
Classification: G05D

Abstract:
1. A thermostatic controller adapted for receiving a temperature input indicative of a temperature in a space, the controller comprising a housing having a translucent portion thereof illuminated by a light that changes color as a function of the temperature in the space; a temperature sensitive element for sensing the temperature, the temperature sensitive element being operatively connected to the illuminated translucent portion of the housing for causing the housing to change color as a function of the temperature as sensed by the temperature sensing element; one or more light emitting elements operatively attached to both the illuminated translucent portion of the housing and the temperature sensitive element and emitting light of varying colors as a function of the temperature; wherein the translucent portion thereof is illuminated by the one or more light emitting elements; and a light pipe apparatus operatively connecting the one or more light emitting elements to the translucent portion of the housing.