Patents Assigned to Energy Efficiency Systems
  • Device for measuring and indicating relative energy in a heat storage unit
    Patent number: 4459040
    Abstract: A computing and indicating device having a display which is calibrated through a range of 0% to 100% of usable heat energy remaining in a heat storage unit. The limits of such range are adjustable to meet the desires of the user. A plurality of comparators compare the temperature of the heat storage unit to biasing signals of progressively different values. Each comparator is effective to energize one of a plurality of displays. Each display represents a different percent of usable heat remaining.
    Type: Grant
    Filed: March 9, 1981
    Date of Patent: July 10, 1984
    Assignee: Energy Efficiency Systems
    Inventor: Dennis L. Vories