US3234754A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Reevaporator system for hot gas refrigeration defrosting systems
Assignee: Individual
•
Filing: 1963-02-18
•
Granted: 1966-02-15
•
Expires: 1983-02-18
Abstract
No abstract record available.
Inventors
- 👤 Lester K Quick
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 16:47
CPC Classifications
F; F25; F25B; F25B6/00; F25B6/04; F25B1/00; F25B1/10; F25B47/00; F25B47/02; F25B47/022; F25B5/00; F25B5/02; F25B2400/00; F25B2400/13; F25B2400/22; F25B2600/00; F25B2600/25; F25B2600/2509
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
157 words
IN A DEFROSTING AND REEVAPORATING SYSTEM IN COMBINATION WITH A REFRIGERATION SYSTEM HAVING A COMPRESSOR, A CONDENSER-RECEIVER MEANS AND A PLURALITY OF EVAPORATOR COILS; THE COMBINATION OF: MEANS SELECTIVELY CONNECTING THE EVAPORATOR COILS TO THE COMPRESSOR OUTPUT FOR CONDUCTING HOT COMPRESSED GASEOUS REFRIGERANT FOR DEFROSTING THE SELECTED EVAPORATOR COILS, HEAT EXCHANGER MEANS HAVING FIRST AND SECOND PORTIONS IN HEAT EXCHANGE RELATION AND BEING ISOLATED FROM EACH OTHER, MEANS FOR CONNECTING THE SELECTED EVAPORATOR COILS TO SAID FIRST PORTION FOR CONDUCTING THE REFRIGERANT USE IN DEFROSTING TO SAID FIRST PORTION, MEANS FOR CONNECTING THE SECOND PORTION TO THE REFRIGERANT SYSTEM BETWEEN SAID CONDENSER-RECEIVER MEANS SAID AT LEAST ONE EVAPORATOR COIL FOR PASSING THE LIQUID REFRIGERANT OF SAID REFRIGERATION SYSTEM THROUGH SAID SECOND PORTION TO VAPORIZE REFRIGERANT IN SAID FIRST PORTION AND TO SUB-COOL SAID LIQUID REFRIGERANT, AND MEANS CONNECTING SAID FIRST PORTION TO THE COMPRESSOR INTAKE FOR DRAWING REFRIGERANT VAPOR FROM SAID FIRST PORTION INTO THE COMPRESSOR INTAKE.
Claim 2
Dependent Claim
157 words
IN A DEFROSTING AND REEVAPORATING SYSTEM IN COMBINATION WITH A REFRIGERATION SYSTEM HAVING A COMPRESSOR, A CONDENSER-RECEIVER MEANS AND A PLURALITY OF EVAPORATOR COILS; THE COMBINATION OF: MEANS SELECTIVELY CONNECTING THE EVAPORATOR COILS TO THE COMPRESSOR OUTPUT FOR CONDUCTING HOT COMPRESSED GASEOUS REFRIGERANT FOR DEFROSTING THE SELECTED EVAPORATOR COILS, HEAT EXCHANGER MEANS HAVING FIRST AND SECOND PORTIONS IN HEAT EXCHANGE RELATION AND BEING ISOLATED FROM EACH OTHER, MEANS FOR CONNECTING THE SELECTED EVAPORATOR COILS TO SAID FIRST PORTION FOR CONDUCTING THE REFRIGERANT USE IN DEFROSTING TO SAID FIRST PORTION, MEANS FOR CONNECTING THE SECOND PORTION TO THE REFRIGERANT SYSTEM BETWEEN SAID CONDENSER-RECEIVER MEANS SAID AT LEAST ONE EVAPORATOR COIL FOR PASSING THE LIQUID REFRIGERANT OF SAID REFRIGERATION SYSTEM THROUGH SAID SECOND PORTION TO VAPORIZE REFRIGERANT IN SAID FIRST PORTION AND TO SUB-COOL SAID LIQUID REFRIGERANT, AND MEANS CONNECTING SAID FIRST PORTION TO THE COMPRESSOR INTAKE FOR DRAWING REFRIGERANT VAPOR FROM SAID FIRST PORTION INTO THE COMPRESSOR INTAKE.
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) | 1969-02-14 | 1969-08-16 | 1970-02-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-02-14 | 1973-08-16 | 1974-02-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-02-14 | 1977-08-16 | 1978-02-15 | $7700.00 | Window Closed / Lapsed |