US3315480A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Cryogenic method and apparatus for quick freezing
Assignee: Cardox Corp
•
Filing: 1964-10-27
•
Granted: 1967-04-25
•
Expires: 1984-10-27
Abstract
No abstract record available.
Inventors
- 👤 Harold M Rich
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 22:06
CPC Classifications
A; A23; A23B; A23B7/00; A23B7/04; A23B7/0408; A23B2/00; A23B2/80; A23B2/803; A23B2/85; A23B2/88; A23B2/90; A23B2/92; F; F25; F25D; F25D3/00; F25D3/10; F25D3/11; F28; F28C; F28C3/00; F28C3/005; F25D2400/00; F25D2400/30
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
101 words
THE METHOD OF PROVIDING AN EFFICIENT LOW TEMPERATURE QUICK-FREEZING ATMOSPHERE FOR COOLING AND QUICKFREEZING A CONTINUOUSLY MOVING PRODUCT TO BE FROZEN, COMPRISING PROVIDING A SOURCE A LIQUID CRYOGEN AT ATMOSPHERIC PRESSURE, PASSING A CURRENT OF GASEOUS FORM SAID CRYOGEN IN HEAT TRANSFER RELATION TO SID LIQUID TO PROGRESSIVELY EVAPORATE SAID LIQUID BY THE ADDITION OF HEAT THERETO, DIRECTING THE THUS EVAPORATED CRYOGEN IN ITS GASEOUS FORM INTO SAID CURRENT AND FORCING THE COMBINED CURRENT AGAINST SAID PRODUCT IN A JET STREAM AND FORCIBLY RECIRCULATING THE GASEOUS FORM OF SAID CRYOGEN LEAVING SAID PRODUCT INTO HEAT TRANSFER RELATION WITH SAID LIQUID CRYOGEN.
Claim 2
Independent Claim
101 words
THE METHOD OF PROVIDING AN EFFICIENT LOW TEMPERATURE QUICK-FREEZING ATMOSPHERE FOR COOLING AND QUICKFREEZING A CONTINUOUSLY MOVING PRODUCT TO BE FROZEN, COMPRISING PROVIDING A SOURCE A LIQUID CRYOGEN AT ATMOSPHERIC PRESSURE, PASSING A CURRENT OF GASEOUS FORM SAID CRYOGEN IN HEAT TRANSFER RELATION TO SID LIQUID TO PROGRESSIVELY EVAPORATE SAID LIQUID BY THE ADDITION OF HEAT THERETO, DIRECTING THE THUS EVAPORATED CRYOGEN IN ITS GASEOUS FORM INTO SAID CURRENT AND FORCING THE COMBINED CURRENT AGAINST SAID PRODUCT IN A JET STREAM AND FORCIBLY RECIRCULATING THE GASEOUS FORM OF SAID CRYOGEN LEAVING SAID PRODUCT INTO HEAT TRANSFER RELATION WITH SAID LIQUID CRYOGEN.
References Cited (Backward Citations)
US2447249A
Cited
US2959034A
Cited
US3022636A
Cited
US3114248A
Cited
US3258935A
Cited
US3255608A
Cited
US3277657A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1970-04-24 | 1970-10-24 | 1971-04-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-04-24 | 1974-10-24 | 1975-04-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-04-24 | 1978-10-24 | 1979-04-25 | $7700.00 | Window Closed / Lapsed |