Patent DE2503784A1 successfully refreshed from Google Patents.
US3371501A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Refrigerant system expansion means
Assignee: Carrier Corp
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Filing: 1966-06-20
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Granted: 1968-03-05
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Expires: 1986-06-20
Abstract
No abstract record available.
Inventors
- 👤 Hal H Rhea
- 👤 David S Wilson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 09:34
CPC Classifications
F; F15; F15C; F15C1/00; F15C1/008; F25; F25B; F25B13/00; F25B2313/00; F25B2313/023; F25B2313/025
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
147 words
IN A REFRIGERATION SYSTEM, THE COMBINATION OF COMPRESSION MEANS; A FIRST HEAT EXCHANGER FOR RECEIVING REFRIGERANT DISCHARGE BY SAID COMPRESSION MEANS; REFRIGERANT METERING MEANS CONNECTED WITH SAID FIRST HEAT EXCHANGER; AND A SECOND HEAT EXCHANGER ARRANGED BETWEEN SAID REFRIGERANT METERING MEANS AND SAID COMPRESSION MEANS, SAID SYSTEM BEING ADAPTED UPON ACTUATION OF SAID COMPRESSION MEANS TO COOL, SAID REFRIGERANT METERING MEANS INCLUDING A FLUID REGULATOR FORMING A VORTEX CHAMBER THROUGH WHICH REFRIGERANT PASSES ENROUTE TO SAID SECOND HEAT EXHCHANGER, SAID REGULATOR HAVING A CONTROL ORIFICE IN SUBSTANTIALLY TANGENTIAL COMMUNICATION WITH SAID VORTEX CHAMBER FOR INTRODUCTION OF VORTEX INDUCING PRESSURIZED CONTROL FLUID INTO SAID REGULATOR CHAMBER, AND CONTROL MEANS FOR VARYING DISCHARGE OF PRESSURIZED CONTROL FLUID FROM SAID REGULATOR ORIFICE IN RESPONSE TO SYSTEM COOLING LOAD CONDITIONS TO VARY FLOW OF REFRIGERANT THROUGH SAID REGULATOR TO SAID SECOND HEAT EXCHANGER IN ACCORDANCE WITH CHANGES IN SYSTEM COOLING LOAD.
Claim 2
Dependent Claim
147 words
IN A REFRIGERATION SYSTEM, THE COMBINATION OF COMPRESSION MEANS; A FIRST HEAT EXCHANGER FOR RECEIVING REFRIGERANT DISCHARGE BY SAID COMPRESSION MEANS; REFRIGERANT METERING MEANS CONNECTED WITH SAID FIRST HEAT EXCHANGER; AND A SECOND HEAT EXCHANGER ARRANGED BETWEEN SAID REFRIGERANT METERING MEANS AND SAID COMPRESSION MEANS, SAID SYSTEM BEING ADAPTED UPON ACTUATION OF SAID COMPRESSION MEANS TO COOL, SAID REFRIGERANT METERING MEANS INCLUDING A FLUID REGULATOR FORMING A VORTEX CHAMBER THROUGH WHICH REFRIGERANT PASSES ENROUTE TO SAID SECOND HEAT EXHCHANGER, SAID REGULATOR HAVING A CONTROL ORIFICE IN SUBSTANTIALLY TANGENTIAL COMMUNICATION WITH SAID VORTEX CHAMBER FOR INTRODUCTION OF VORTEX INDUCING PRESSURIZED CONTROL FLUID INTO SAID REGULATOR CHAMBER, AND CONTROL MEANS FOR VARYING DISCHARGE OF PRESSURIZED CONTROL FLUID FROM SAID REGULATOR ORIFICE IN RESPONSE TO SYSTEM COOLING LOAD CONDITIONS TO VARY FLOW OF REFRIGERANT THROUGH SAID REGULATOR TO SAID SECOND HEAT EXCHANGER IN ACCORDANCE WITH CHANGES IN SYSTEM COOLING LOAD.
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) | 1971-03-05 | 1971-09-04 | 1972-03-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-03-05 | 1975-09-04 | 1976-03-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-03-05 | 1979-09-04 | 1980-03-05 | $7700.00 | Window Closed / Lapsed |