Abstract The present invention discloses an energy conserving thermostat for controlling the supply of energy within a commercial or industrial building during unoccupied periods and for providing additional energy to the building when required. The present system includes: a night thermostat for establishing a low temperature necessary for the maintenance of the building during a non-occupancy period; a seven-day timer clock calibrated for every hour of each day, with manually adjustable pins on the clock settable for a time interval within each day during which a normal comfort condition is required; mechanical switch means responsive to such pins of the clock; electrical switch means including a relay energized by operation of the mechanical switch; and an override timer including a time meter and a manually operable switch to increase the time setting for any day wherein an unusual supply of energy is required within a zone of the building. The extra time of such setting is recorded on a time clock meter. The timer clock is provided in a locked box to prevent a tenant from varying the timer clock setting.
An apparatus for controlling the supply of energy in a heating zone and recording any excess supply of the energy, when required in said zone, comprising: (a) a day thermostat allowing a temperature necessary for normal comfort conditions during an occupancy period; (b) a night thermostat allowing a temperature necessary for a maintenance of said zone during a non-occupancy period; (c) a seven-day timer clock calibrated for time of each day with manually adjustable pins on said clock to set a time interval on each day during which normal comfort conditions with the day thermostat are required; (d) a mechanical switch means responsive to the pins of said clock; (e) an electrical switch means including a relay energized by an operation of said mechanical switch means; and (f) an override timer including a time clock meter and a manually operable switch to increase the time on any given day when a usual supply of energy is required in said zone; said time being recorded on the time clock meter.
Claim 2
Independent Claim
169 words
An apparatus for controlling the supply of energy in a heating zone and recording any excess supply of the energy, when required in said zone, comprising: (a) a day thermostat allowing a temperature necessary for normal comfort conditions during an occupancy period; (b) a night thermostat allowing a temperature necessary for a maintenance of said zone during a non-occupancy period; (c) a seven-day timer clock calibrated for time of each day with manually adjustable pins on said clock to set a time interval on each day during which normal comfort conditions with the day thermostat are required; (d) a mechanical switch means responsive to the pins of said clock; (e) an electrical switch means including a relay energized by an operation of said mechanical switch means; and (f) an override timer including a time clock meter and a manually operable switch to increase the time on any given day when a usual supply of energy is required in said zone; said time being recorded on the time clock meter.
Claim 3
Dependent Claim
51 words
The apparatus as recited in claim 1, further comprising: a locked box inside which said seven-day timer clock, mechanical switch means, and electrical switch means are connected; and said override timer comprising the timer clock meter and the manually operable switch are mounted from the inside to outside of said box.
Claim 4
Dependent Claim
39 words
The apparatus as recited in claim 1 in which the manually operable override switch, when in the "on" position, activates a relay that simultaneously disconnects the night thermostat and connects the day thermostat and energizes the recording clock meter.