Patents Assigned to Electronic Environmental Controls Inc.
  • Patent number: 5475364
    Abstract: Rooms in a building each have a heating, ventilating and air conditioning system (HVAC), a room control unit having a temperature controller, and various sensors. The control unit monitors the presence of persons in the room, determines the season, sets back the temperature in an empty room by a variable amount which the HVAC can restore in a given time, and restores the temperature to the previous user request when the user returns but to a standard temperature if the user has newly checked in. An outside hallway panel briefly displays, when interrogated by a maid, a person's presence. By monitoring maid requests, door status and maid activity, the unit indicates on a room map whether the room is being cleaned, clean, or ready to rent. By establishing the heat loss/gain (l/g) factor of a room with the HVAC off and comparing it with the time to heat or cool the room, HVAC failures are determined. By comparing a room's l/g factor with those of its neighbors, room environment failures are determined.
    Type: Grant
    Filed: April 28, 1994
    Date of Patent: December 12, 1995
    Assignee: Electronic Environmental Controls Inc.
    Inventor: Ran Kenet
  • Patent number: 5309146
    Abstract: Rooms in a building each have a heating, ventilating and air conditioning system (HVAC), a room control unit having a temperature controller, and various sensors. The control unit monitors the presence of persons in the room, determines the season, sets back the temperature in an empty room by a variable amount which the HVAC can restore in a given time, and restores the temperature to the previous user request when the user returns but to a standard temperature if the user has newly checked in. An outside hallway panel briefly displays, when interrogated by a maid, a person's presence. By monitoring maid requests, door status and maid activity, the unit indicates on a room map whether the room is being cleaned, clean, or ready to rent. By establishing the heat loss/gain (lg) factor of a room with the HVAC off and comparing it with the time to heat or cool the room, HVAC failures are determined. By comparing a room's lg factor with those of its neighbors, room environment failures are determined.
    Type: Grant
    Filed: September 24, 1992
    Date of Patent: May 3, 1994
    Assignee: Electronic Environmental Controls Inc.
    Inventor: Ran Kenet
  • Patent number: 5165465
    Abstract: Rooms in a building each have a heating, ventilating and air conditioning system (HVAC), a room control unit having a temperature controller, and various sensors. The control unit monitors the presence of persons in the room, determines the season, sets back the temperature in an empty room by a variable amount which the HVAC can restore in a given time, and restores the temperature to the previous user request when the user returns but to a standard temperature if the user has newly checked in. An outside hallway panel briefly displays, when interrogated by a maid, a person's presence. By monitoring maid requests, door status and maid activity, the unit indicates on a room map whether the room is being cleaned, clean, or ready to rent. By establishing the heat loss/gain (lg) factor of a room with the HVAC off and comparing it with the time to heat or cool the room, HVAC failures are determined. By comparing a room's lg factor with those of its neighbors, room environment failures are determined.
    Type: Grant
    Filed: January 25, 1990
    Date of Patent: November 24, 1992
    Assignee: Electronic Environmental Controls Inc.
    Inventor: Ran Kenet