US3147797A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Heating and cooling air conditioning system
Assignee: Trane Co
•
Filing: 1961-04-07
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Granted: 1964-09-08
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Expires: 1981-04-07
Abstract
No abstract record available.
Inventors
- 👤 Robert G Miner
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 12:13
CPC Classifications
F; F24; F24F; F24F3/00; F24F3/06; F24F3/10; Y; Y10; Y10T; Y10T137/00; Y10T137/2496; Y10T137/2559; Y10T137/2562
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
240 words
AN AIR CONDITIONING SYSTEM FOR A SPACE HAVING A PLURALITY OF ZONES WITH EACH ZONE HAVING A PLURALITY OF AREAS WITH SIMILAR HEATING AND COOLING REQUIREMENTS, A SOURCE OF HOT FLUID, A SOURCE OF COLD FLUID, A FIRST CONDUIT CONNECTED TO SAID SOURCE OF HOT FLUID FOR CONDUCTING HOT FLUID FROM SAID SOURCE OF HOT FLUID TO THE ZONES, A SECOND CONDUIT CONNECTED TO SAID SOURCE OF COLD FLUID FOR CONDUCTING COLD FLUID FROM SAID SOURCE OF COLD FLUID TO THE ZONES, A THIRD CONDUIT CONNECTED TO SAID SOURCE OF HOT FLUID FOR CONDUCTING HOT FLUID FROM THE ZONES BACK TO SAID SOURCE OF HOT FLUID, A FOURTH CONDUIT CONNECTED TO SAID SOURCE OF COLD FLUID FOR CONDUCTING COLD FLUID FROM THE ZONES BACK TO SAID SOURCE OF COLD FLUID, UNITS FOR EACH ZONE FOR HEATING AND COOLING THE AREAS OF THE ZONES, A FIFTH CONDUIT CONNECTED TO SAID FIRST CONDUIT AND TO THE UNITS OF A FIRST ZONE FOR CONDUCTING HOT FLUID FROM SAID FIRST CONDUIT TO UNITS OF A FIRST ZONE, A SIXTH CONDUIT CONNECTED TO SAID SECOND CONDUIT AND TO THE UNITS OF SAID FIRST ZONE FOR CONDUCTING COLD FLUID FROM THE SECOND CONDUIT TO UNITS OF SAID FIRST ZONE, A COMMON RETURN CONDUIT CONNECTED TO THE UNITS OF SAID FIRST ZONE FOR CONDUCTING FLUID FROM THE UNITS OF SAID FIRST ZONE, VALVE MEANS FOR PUTTING SAID COMMON RETURN CONDUIT IN FLUID COMMUNICATION WITH SAID THIRD CONDUIT
Claim 2
Dependent Claim
240 words
AN AIR CONDITIONING SYSTEM FOR A SPACE HAVING A PLURALITY OF ZONES WITH EACH ZONE HAVING A PLURALITY OF AREAS WITH SIMILAR HEATING AND COOLING REQUIREMENTS, A SOURCE OF HOT FLUID, A SOURCE OF COLD FLUID, A FIRST CONDUIT CONNECTED TO SAID SOURCE OF HOT FLUID FOR CONDUCTING HOT FLUID FROM SAID SOURCE OF HOT FLUID TO THE ZONES, A SECOND CONDUIT CONNECTED TO SAID SOURCE OF COLD FLUID FOR CONDUCTING COLD FLUID FROM SAID SOURCE OF COLD FLUID TO THE ZONES, A THIRD CONDUIT CONNECTED TO SAID SOURCE OF HOT FLUID FOR CONDUCTING HOT FLUID FROM THE ZONES BACK TO SAID SOURCE OF HOT FLUID, A FOURTH CONDUIT CONNECTED TO SAID SOURCE OF COLD FLUID FOR CONDUCTING COLD FLUID FROM THE ZONES BACK TO SAID SOURCE OF COLD FLUID, UNITS FOR EACH ZONE FOR HEATING AND COOLING THE AREAS OF THE ZONES, A FIFTH CONDUIT CONNECTED TO SAID FIRST CONDUIT AND TO THE UNITS OF A FIRST ZONE FOR CONDUCTING HOT FLUID FROM SAID FIRST CONDUIT TO UNITS OF A FIRST ZONE, A SIXTH CONDUIT CONNECTED TO SAID SECOND CONDUIT AND TO THE UNITS OF SAID FIRST ZONE FOR CONDUCTING COLD FLUID FROM THE SECOND CONDUIT TO UNITS OF SAID FIRST ZONE, A COMMON RETURN CONDUIT CONNECTED TO THE UNITS OF SAID FIRST ZONE FOR CONDUCTING FLUID FROM THE UNITS OF SAID FIRST ZONE, VALVE MEANS FOR PUTTING SAID COMMON RETURN CONDUIT IN FLUID COMMUNICATION WITH SAID THIRD CONDUIT
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1967-09-08 | 1968-03-09 | 1968-09-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-09-08 | 1972-03-09 | 1972-09-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-09-08 | 1976-03-09 | 1976-09-08 | $7700.00 | Window Closed / Lapsed |