US3170304A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Refrigeration system control
Assignee: Carrier Corp
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Filing: 1963-09-26
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Granted: 1965-02-23
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Expires: 1983-09-26
Abstract
No abstract record available.
Inventors
- 👤 Harry T Hale
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 04:56
CPC Classifications
F; F25; F25B; F25B47/00; F25B47/02; F25B47/022; F25B47/025
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
189 words
IN A CONTROL ARRANGEMENT FOR A REVERSE CYCLE REFRIGERATION SYSTEM HAVING COMPRESSION MEANS, AN OUTDOOR COIL, REFRIGERANT METERING MEANS, AND AN INDOOR COIL CONNECTED TO REFRIGERANT FLOW RELATIONSHIP OPERABLE UPON ENERGIZATION OF THE COMPRESSION MEANS TO COOL, REVERSEING MEANS EFFECTIVE TO CONNECT THE COMPRESSION MEANS, INDOOR COIL, REFRIGERANT METERING MEANS, AND OUTDOOR COIL IN REFRIGERANT FLOW RELATIONSHIP OPERABLE UPON ENERGIZATION OF THE COMPRESION MEANS TO HEAT, THE COMBINATION OF MEANS FOR DEFROSTING THE OUTDOOR COIL INCLUDING FIRST MEANS ACTUATED IN RESPONSE TO A PREDETERMINED OUTDOOR COIL CONDITION TO READY SAID DEFROSTING MEANS FOR OPERATION AND SECOND MEANS PERIODICALLY ACTUATED TO READY SAID DEFROSTING MEANS FOR OPERATION, SAID DEFROSTING MEANS BEING RESPONSIVE TO THE SUBSTANTIALLY SIMULTANEOUS ACTUATION OF SAID FIRST AND SECOND MEANS TO DEFROST SAID OUTDOOR COIL, SAID SECOND MEANS BEING ADAPTED TO TERMINATE OUTDOOR COIL DEFROST AFTER A PREDETERMINED TIME INTERVAL, SAID FIRST MEANS INTERVENING TO TERMINATE OUTDOOR COIL DEFROST DURING SAID PREDETERMINED TIME INTERVAL IN RESPONSE TO A SECOND OUTDOOR COIL CONDITION, AND MEANS FOR REGULATING SAID DEFROSTING MEANS IN RESPONSE TO ENERGIZATION OF SAID COMPRESSION MEANS TO PREVENT START-UP OF THE SYSTEM ON THE DEFROST CYCLE.
Claim 2
Dependent Claim
189 words
IN A CONTROL ARRANGEMENT FOR A REVERSE CYCLE REFRIGERATION SYSTEM HAVING COMPRESSION MEANS, AN OUTDOOR COIL, REFRIGERANT METERING MEANS, AND AN INDOOR COIL CONNECTED TO REFRIGERANT FLOW RELATIONSHIP OPERABLE UPON ENERGIZATION OF THE COMPRESSION MEANS TO COOL, REVERSEING MEANS EFFECTIVE TO CONNECT THE COMPRESSION MEANS, INDOOR COIL, REFRIGERANT METERING MEANS, AND OUTDOOR COIL IN REFRIGERANT FLOW RELATIONSHIP OPERABLE UPON ENERGIZATION OF THE COMPRESION MEANS TO HEAT, THE COMBINATION OF MEANS FOR DEFROSTING THE OUTDOOR COIL INCLUDING FIRST MEANS ACTUATED IN RESPONSE TO A PREDETERMINED OUTDOOR COIL CONDITION TO READY SAID DEFROSTING MEANS FOR OPERATION AND SECOND MEANS PERIODICALLY ACTUATED TO READY SAID DEFROSTING MEANS FOR OPERATION, SAID DEFROSTING MEANS BEING RESPONSIVE TO THE SUBSTANTIALLY SIMULTANEOUS ACTUATION OF SAID FIRST AND SECOND MEANS TO DEFROST SAID OUTDOOR COIL, SAID SECOND MEANS BEING ADAPTED TO TERMINATE OUTDOOR COIL DEFROST AFTER A PREDETERMINED TIME INTERVAL, SAID FIRST MEANS INTERVENING TO TERMINATE OUTDOOR COIL DEFROST DURING SAID PREDETERMINED TIME INTERVAL IN RESPONSE TO A SECOND OUTDOOR COIL CONDITION, AND MEANS FOR REGULATING SAID DEFROSTING MEANS IN RESPONSE TO ENERGIZATION OF SAID COMPRESSION MEANS TO PREVENT START-UP OF THE SYSTEM ON THE DEFROST CYCLE.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1968-02-23 | 1968-08-24 | 1969-02-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-02-23 | 1972-08-24 | 1973-02-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-02-23 | 1976-08-24 | 1977-02-23 | $7700.00 | Window Closed / Lapsed |