US3105367A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Refrigerant metering device
Assignee: Coleman Co Inc
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Filing: 1961-10-06
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Granted: 1963-10-01
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Expires: 1981-10-06
Abstract
No abstract record available.
Inventors
- 👤 Francis W Osborn
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 03:47
CPC Classifications
F; F25; F25B; F25B41/00; F25B41/30; F25B41/37
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
128 words
IN AN AIR CONDITIONING UNIT HAVING AN EVAPORATOR AND A CONDENSER, A REFRIGERANT METERING DEVICE COMPRISING AT LEAST ONE SUBSTANTIALLY STRAIGHT EVAPORATOR INLET TUBE HAVING AN ELONGATED END PORTION SLOPING GRADUALLY UPWARDLY TOWARDS SAID EVAPORATOR, SAID STRAIGHT END PORTION OF SAID INLET TUBE CONTAINING AN ELONGATED STRAIGHT END PORTION A CAPILLARY TUBE COMMUNICATING WITH SAID CONDENSER, SAID STRAIGHT END PORTION OF SAID CAPILLARY TUBE BEING OF SUBTANTIALLY THE SAME LENGTH AS SAID PORTION OF SAID INLET TUBE AND HAVING AN EXTERNAL DIAMETER SUBSTANTIALLY LESS THAN THE INTERNAL DIAMETER OF SASID INLET TUBE, SAID INLET TUBE BEING SEATED AT ITS END TO THE OUTER SURFACE OF SAID CAPILLARY TUBE AND SAID CAPILLARY TUBE BEING POSITIONED AND ARRANGED TO DIRECT FLUID AWAY FROM THE SEALED END OF SAID INLET TUBE.
Claim 2
Dependent Claim
128 words
IN AN AIR CONDITIONING UNIT HAVING AN EVAPORATOR AND A CONDENSER, A REFRIGERANT METERING DEVICE COMPRISING AT LEAST ONE SUBSTANTIALLY STRAIGHT EVAPORATOR INLET TUBE HAVING AN ELONGATED END PORTION SLOPING GRADUALLY UPWARDLY TOWARDS SAID EVAPORATOR, SAID STRAIGHT END PORTION OF SAID INLET TUBE CONTAINING AN ELONGATED STRAIGHT END PORTION A CAPILLARY TUBE COMMUNICATING WITH SAID CONDENSER, SAID STRAIGHT END PORTION OF SAID CAPILLARY TUBE BEING OF SUBTANTIALLY THE SAME LENGTH AS SAID PORTION OF SAID INLET TUBE AND HAVING AN EXTERNAL DIAMETER SUBSTANTIALLY LESS THAN THE INTERNAL DIAMETER OF SASID INLET TUBE, SAID INLET TUBE BEING SEATED AT ITS END TO THE OUTER SURFACE OF SAID CAPILLARY TUBE AND SAID CAPILLARY TUBE BEING POSITIONED AND ARRANGED TO DIRECT FLUID AWAY FROM THE SEALED END OF SAID INLET TUBE.
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) | 1966-09-30 | 1967-04-01 | 1967-10-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-09-30 | 1971-04-01 | 1971-10-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-09-30 | 1975-04-01 | 1975-10-01 | $7700.00 | Window Closed / Lapsed |