US3170302A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Evaporative cooling device
Assignee: Individual
•
Filing: 1963-12-23
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Granted: 1965-02-23
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Expires: 1983-12-23
Abstract
No abstract record available.
Inventors
- 👤 Oren F Potito
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 14:37
CPC Classifications
F; F25; F25B; F25B19/00
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
112 words
A COOLING DEVICE COMPRISING A HOLLOW COIL COMMUNICATING AT ONE END WITH A SOURCE OF SUB-ATMOSPHERIC PRESSURE AND AT ITS OTHER END WITH A SOURCE OF GAS TO EFFECT THE DRAWING OF GAS INTO SAID COIL, A SOURCE OF VOLATILE REFRIGERANT, A TUBE COMMUNICATING AT ONE END WITH SAID REFRIGERANT AND AT ITS OTHER END WITH THE INTERIOR OF SAID COIL TO DISCHARGE THEREWITHIN THE SUB-ATMOSPHERIC PRESSURE-INDUCED FLOW OF REFRIGERANT TO EXPAND AND VAPORIZE IT AND ABSORB HEAT FROM SAID COIL TO COOL IT, SAID TUBE BEING FORMED OF SUCCESSIVE SECTIONS OF LESSER DIAMETER TUBING TO INCREASE THE VELOCITY OF THE REFRIGERANT FLOWING THERETHROUGH TO INCREASE THE COOLING EFFECT ON SAID COIL.
Claim 2
Dependent Claim
112 words
A COOLING DEVICE COMPRISING A HOLLOW COIL COMMUNICATING AT ONE END WITH A SOURCE OF SUB-ATMOSPHERIC PRESSURE AND AT ITS OTHER END WITH A SOURCE OF GAS TO EFFECT THE DRAWING OF GAS INTO SAID COIL, A SOURCE OF VOLATILE REFRIGERANT, A TUBE COMMUNICATING AT ONE END WITH SAID REFRIGERANT AND AT ITS OTHER END WITH THE INTERIOR OF SAID COIL TO DISCHARGE THEREWITHIN THE SUB-ATMOSPHERIC PRESSURE-INDUCED FLOW OF REFRIGERANT TO EXPAND AND VAPORIZE IT AND ABSORB HEAT FROM SAID COIL TO COOL IT, SAID TUBE BEING FORMED OF SUCCESSIVE SECTIONS OF LESSER DIAMETER TUBING TO INCREASE THE VELOCITY OF THE REFRIGERANT FLOWING THERETHROUGH TO INCREASE THE COOLING EFFECT ON SAID COIL.
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) | 1968-02-23 | 1968-08-24 | 1969-02-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-02-23 | 1972-08-24 | 1973-02-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-02-23 | 1976-08-24 | 1977-02-23 | $7700.00 | Window Closed / Lapsed |