US3777803A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Control for air conditioning apparatus
Assignee: Carrier Corp
•
Filing: 1972-06-05
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Granted: 1973-12-11
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Expires: 1992-06-05
Abstract
Abstract A control arrangement for an air conditioning system adapted to serve a plurality of zones, a master control being provided in the control arrangement to energize and deenergize the zone thermostats, the master control energizing the individual zone thermostats in response to a preselected temperature variation from the zone thermostat set point in a respresentative zone, deenergization of the zone thermostats by the master control allowing the temperature in each of the zones to increase or decrease from the zone thermostat set point and reduce the load on the air conditioning system for weekend and nighttime operation.
Inventors
- 👤 R Wood
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 22:52
CPC Classifications
F; F24; F24F; F24F3/00; F24F3/044; F24F3/048; F24F3/052; F24F3/0527
Claims Analysis
Total Claims: 3
Claim 1
Independent Claim
133 words
A method for controlling an air conditioning system serving a plurality of zones comprising the steps of: providing heated air to the zones requiring heating and cool air to the zones requiring cooling in response to temperature control means located in each zone served by the air conditioning system, deenergizing the temperature control means in each zone in response to a predetermined temperature in a zone having heat gains and heat losses representative of the heat gains and heat losses in the remainder of the zones to allow the temperature of each zone to vary from the temperature set point of temperature control means located therein; and energizing the temperature responsive means in each zone when the temperature of the representative zone is below the predetermined temperature and the representative zone requires heating.
Claim 2
Independent Claim
133 words
A method for controlling an air conditioning system serving a plurality of zones comprising the steps of: providing heated air to the zones requiring heating and cool air to the zones requiring cooling in response to temperature control means located in each zone served by the air conditioning system, deenergizing the temperature control means in each zone in response to a predetermined temperature in a zone having heat gains and heat losses representative of the heat gains and heat losses in the remainder of the zones to allow the temperature of each zone to vary from the temperature set point of temperature control means located therein; and energizing the temperature responsive means in each zone when the temperature of the representative zone is below the predetermined temperature and the representative zone requires heating.
Claim 3
Dependent Claim
43 words
A method for controlling an air conditioning system according to claim 1 further including the step of energizing the temperature responsive means in each zone when the temperature of the representative zone is above the predetermined temperature and the representative zone requires cooling.
References Cited (Backward Citations)
US3051451A
Cited
US3116786A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1976-12-10 | 1977-06-11 | 1977-12-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-12-10 | 1981-06-11 | 1981-12-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-12-10 | 1985-06-11 | 1985-12-11 | $7700.00 | Window Closed / Lapsed |