US3209814A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Refrigeration system
Assignee: TRANSICOLD CORP
•
Filing: 1963-04-03
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Granted: 1965-10-05
•
Expires: 1983-04-03
Abstract
No abstract record available.
Inventors
- 👤 Block Leo
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 14:35
CPC Classifications
F; F25; F25B; F25B47/00; F25B47/02; F25B47/022; F25B47/025; F25B43/00
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
163 words
IN A CLOSED CIRCUIT REFRIGERATION SYSTEM INCLUDING COMPRESSOR MEANS HAVING SUCTION AND DISCHARGE CONNECTIONS, CONDENSER MEANS ARRANGED TO RECEIVE FLUID UNDER PRESSURE FROM SAID DISCHARGE CONNECTION, EVAPORATOR MEANS DIDPOSED DOWNSTREAM CONNECTION, EVASPORATOR PANSION MEANS IMMEDIATELY UPSTREAM OF SAID EVAORATOR MEANS, PRESSURE REGULATING MEANS DISPOSED DOWNSTREAM OF SAID EVAPORATOR MEANS FOR REGULATING FLUID PRESSURE AT SAID SUCTION CONNECTION TO THE COMPRESSOR, FLOW PATH CONTRO MEANS FOR SELECTIVELY HEATING SAID EVAPORATOR MEANS, SAID FLOW PATH CONTROL MEANS FORMING A FLUID FLUID PATH FOR PASSING HOT GASES FROM SAID DISCHARGE CONNECTION TO SAID EVAPORATOR AND BY-PASSING SAID CONDENSER AND FORMING A SECOND FLUID PATH FROM SAID CONDENSER TO SAID SUCTION CONNECTION AND BY-PASSING SAID EVAPORATOR TO WITHDRAW FLUID FROM SAID CONDENSER AND RECEIVER DURING DISCHARGE, OF COMPRESSED FLUID INTO SAID EVAPORATOR TO HEAT SAME, AND MEANS FOR VAPORIZING ENTRAINED LIQUID MOVING FROM SAID EVAPORATOR MEANS TO SAID SUCTION CONNECTION TO PROTECT SAID COMPRESSOR COMPRISING MEANS FOR INJECTING COMPRESSOR-HEATED GAS IMMEDIATELY UPSTREAM OF SAID PRESSURE REGULATING MEANS.
Claim 2
Dependent Claim
163 words
IN A CLOSED CIRCUIT REFRIGERATION SYSTEM INCLUDING COMPRESSOR MEANS HAVING SUCTION AND DISCHARGE CONNECTIONS, CONDENSER MEANS ARRANGED TO RECEIVE FLUID UNDER PRESSURE FROM SAID DISCHARGE CONNECTION, EVAPORATOR MEANS DIDPOSED DOWNSTREAM CONNECTION, EVASPORATOR PANSION MEANS IMMEDIATELY UPSTREAM OF SAID EVAORATOR MEANS, PRESSURE REGULATING MEANS DISPOSED DOWNSTREAM OF SAID EVAPORATOR MEANS FOR REGULATING FLUID PRESSURE AT SAID SUCTION CONNECTION TO THE COMPRESSOR, FLOW PATH CONTRO MEANS FOR SELECTIVELY HEATING SAID EVAPORATOR MEANS, SAID FLOW PATH CONTROL MEANS FORMING A FLUID FLUID PATH FOR PASSING HOT GASES FROM SAID DISCHARGE CONNECTION TO SAID EVAPORATOR AND BY-PASSING SAID CONDENSER AND FORMING A SECOND FLUID PATH FROM SAID CONDENSER TO SAID SUCTION CONNECTION AND BY-PASSING SAID EVAPORATOR TO WITHDRAW FLUID FROM SAID CONDENSER AND RECEIVER DURING DISCHARGE, OF COMPRESSED FLUID INTO SAID EVAPORATOR TO HEAT SAME, AND MEANS FOR VAPORIZING ENTRAINED LIQUID MOVING FROM SAID EVAPORATOR MEANS TO SAID SUCTION CONNECTION TO PROTECT SAID COMPRESSOR COMPRISING MEANS FOR INJECTING COMPRESSOR-HEATED GAS IMMEDIATELY UPSTREAM OF SAID PRESSURE REGULATING MEANS.
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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) | 1968-10-04 | 1969-04-05 | 1969-10-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-10-04 | 1973-04-05 | 1973-10-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-10-04 | 1977-04-05 | 1977-10-05 | $7700.00 | Window Closed / Lapsed |