Patent US3302426A successfully refreshed from Google Patents.
US3302426A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Air conditioning apparatus
Assignee: Individual
•
Filing: 1965-12-08
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Granted: 1967-02-07
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Expires: 1985-12-08
Abstract
No abstract record available.
Inventors
- 👤 Laing Nikolaus
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 14:00
CPC Classifications
F; F24; F24F; F24F13/00; F24F13/02; F24F13/06; F24F13/075
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
181 words
ROOM AIR CONDITIONING APPARATUS COMPRISING REFRIGERATION APPARATUS HAVING A CONDENSER, AN EVAPORATOR AND A COMPRESSOR CONNECTED IN A CLOSED REFRIGERANT CIRCUIT; TWO HEAT EXCHANGER BLOWER UNITS AND THE HEAT EXCHANGER OF ONE UNIT FORMING SAID CONDENSER AND THE HEAT EXCHANGER OF THE OTHER UNIT FORMING SAID EVAPORATOR, THE BLOWER OF EACH UNIT CAUSING AN AIR FLOW THROUGH THE RESPECTIVE HEAT EXCHANGER TO EFFECT EXCHANGE OF HEAT BETWEEN THE REFRIGERANT THEREIN AND SAID AIR FLOW, ONE OF SAID UNITS BEING INSIDE THE ROOM AND THE OTHER OUTSIDE THE ROOM, AND WHEREIN AT LEAST ONE HEAT EXCHANGER BLOWER UNIT COMPRISES A CASING IN THE GENERAL FORM AS SEEN IN SECTION OF A RIGHT ANGLED TRIANGLE WITH THE RIGHT ANGLE ROUNDED OFF AND THE HEAT EXCHANGER ACROSS THE HYPOTENUSE, AND THE BLOWER IS A CROSS FLOW BLOWER WITH ITS ROTOR IN THE CASING ADJACENT THE ROUNDED OFF RIGHT ANGLE AND EXTENDING THE LENGTH OF THE HEAT EXCHANGER AND SETTING UP AN AIR FLOW IN THROUGH ONE PART OF THE HEAT EXCHANGER, THROUGH THE ROTOR AND OUT THROUGH THE OTHER PART OF THE HEAT EXCHANGER.
Claim 2
Dependent Claim
181 words
ROOM AIR CONDITIONING APPARATUS COMPRISING REFRIGERATION APPARATUS HAVING A CONDENSER, AN EVAPORATOR AND A COMPRESSOR CONNECTED IN A CLOSED REFRIGERANT CIRCUIT; TWO HEAT EXCHANGER BLOWER UNITS AND THE HEAT EXCHANGER OF ONE UNIT FORMING SAID CONDENSER AND THE HEAT EXCHANGER OF THE OTHER UNIT FORMING SAID EVAPORATOR, THE BLOWER OF EACH UNIT CAUSING AN AIR FLOW THROUGH THE RESPECTIVE HEAT EXCHANGER TO EFFECT EXCHANGE OF HEAT BETWEEN THE REFRIGERANT THEREIN AND SAID AIR FLOW, ONE OF SAID UNITS BEING INSIDE THE ROOM AND THE OTHER OUTSIDE THE ROOM, AND WHEREIN AT LEAST ONE HEAT EXCHANGER BLOWER UNIT COMPRISES A CASING IN THE GENERAL FORM AS SEEN IN SECTION OF A RIGHT ANGLED TRIANGLE WITH THE RIGHT ANGLE ROUNDED OFF AND THE HEAT EXCHANGER ACROSS THE HYPOTENUSE, AND THE BLOWER IS A CROSS FLOW BLOWER WITH ITS ROTOR IN THE CASING ADJACENT THE ROUNDED OFF RIGHT ANGLE AND EXTENDING THE LENGTH OF THE HEAT EXCHANGER AND SETTING UP AN AIR FLOW IN THROUGH ONE PART OF THE HEAT EXCHANGER, THROUGH THE ROTOR AND OUT THROUGH THE OTHER PART OF THE HEAT EXCHANGER.
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) | 1970-02-06 | 1970-08-08 | 1971-02-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-02-06 | 1974-08-08 | 1975-02-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-02-06 | 1978-08-08 | 1979-02-07 | $7700.00 | Window Closed / Lapsed |