US3171471A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Multi-room air conditioning systems
Assignee: Borg Warner Corp
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Filing: 1962-02-27
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Granted: 1965-03-02
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Expires: 1982-02-27
Abstract
No abstract record available.
Inventors
- 👤 Robert D Blum
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 21:53
CPC Classifications
F; F24; F24F; F24F3/00; F24F3/06; F24F3/10
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
111 words
A METHOD OF AIR CONDITIONING A MULTI-ROOM BUILDING COMPRISING THE STEPS OF PROVIDING A PLURALITY OF AIR CONDITIONING UNITS IN AIR COMMUNICATION WITH ROOMS TO BE CONDITIONED, SAID AIR-CONDITIONING UNITS BEING ARRANGED IN A PLURALITY OF GROUPS LOCATED IN DIFFERENT ZONES, SAID UNITS EACH COMPRISING A HEAT-EXCHANGE COIL, A FAN FOR FLOWING ROOM AIR OVER SAID COIL, AND A MOTOR FOR OPERATING SAID FAN; SUPPLYING A HEAT-EXCHANGE FLUID TO SAID COILS CONTROLLING, IN THE SAME MANNER, THE SPEED OF ALL OF SAID FANS WITHIN A PARTICULAR ZONE CENTRALLY IN ACCORDANCE WITH PREDETERMINED GENERAL CONDITIONS; AND CONTROLLING THE ADMISSION OF HEAT-EXCHANGE FLUID TO SAID COILS IN ACCORDANCE WITH INDIVIDUAL ROOM TEMPERATURE CONDITIONS.
Claim 2
Independent Claim
111 words
A METHOD OF AIR CONDITIONING A MULTI-ROOM BUILDING COMPRISING THE STEPS OF PROVIDING A PLURALITY OF AIR CONDITIONING UNITS IN AIR COMMUNICATION WITH ROOMS TO BE CONDITIONED, SAID AIR-CONDITIONING UNITS BEING ARRANGED IN A PLURALITY OF GROUPS LOCATED IN DIFFERENT ZONES, SAID UNITS EACH COMPRISING A HEAT-EXCHANGE COIL, A FAN FOR FLOWING ROOM AIR OVER SAID COIL, AND A MOTOR FOR OPERATING SAID FAN; SUPPLYING A HEAT-EXCHANGE FLUID TO SAID COILS CONTROLLING, IN THE SAME MANNER, THE SPEED OF ALL OF SAID FANS WITHIN A PARTICULAR ZONE CENTRALLY IN ACCORDANCE WITH PREDETERMINED GENERAL CONDITIONS; AND CONTROLLING THE ADMISSION OF HEAT-EXCHANGE FLUID TO SAID COILS IN ACCORDANCE WITH INDIVIDUAL ROOM TEMPERATURE CONDITIONS.
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) | 1968-03-01 | 1968-08-31 | 1969-03-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-03-01 | 1972-08-31 | 1973-03-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-03-01 | 1976-08-31 | 1977-03-02 | $7700.00 | Window Closed / Lapsed |