US3326012A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Fog control
Assignee: Individual
•
Filing: 1965-11-09
•
Granted: 1967-06-20
•
Expires: 1985-11-09
Abstract
No abstract record available.
Inventors
- 👤 Gunnar C F Asker
- 👤 Berner Erling
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-22 23:13
CPC Classifications
F; F25; F25D; F25D23/00; F25D23/02; F25D23/023
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
80 words
THE METHOD OF PREVENTING FOG, CLOUDING AND MOISTURE CONDENSATION CONDITIONS IN A VESTIBULE ADJOINING AN OPENING IN A REFRIGERATED CHAMBER DURING LOADING AND UNLOADING THEREOF WITH CONSEQUENT INTERMIXTURE OF AIR ON OPPOSITE SIDES OF SAID OPENING, COMPRISING APPLYING A PROTECTIVE AIR CURTAIN ACROSS SAID OPENING TO REDUCE AIR CURRENT FLOW BETWEEN THE CHAMBERS THROUGH SAID OPENING, AND MAINTAINING THE VESTIBULE AIR AT A RELATIVE HUMIDITY BELOW ABOUT 25% AND AT A TEMPERATURE IN THE RANGE OF 35 TO 45* F.
Claim 2
Independent Claim
80 words
THE METHOD OF PREVENTING FOG, CLOUDING AND MOISTURE CONDENSATION CONDITIONS IN A VESTIBULE ADJOINING AN OPENING IN A REFRIGERATED CHAMBER DURING LOADING AND UNLOADING THEREOF WITH CONSEQUENT INTERMIXTURE OF AIR ON OPPOSITE SIDES OF SAID OPENING, COMPRISING APPLYING A PROTECTIVE AIR CURTAIN ACROSS SAID OPENING TO REDUCE AIR CURRENT FLOW BETWEEN THE CHAMBERS THROUGH SAID OPENING, AND MAINTAINING THE VESTIBULE AIR AT A RELATIVE HUMIDITY BELOW ABOUT 25% AND AT A TEMPERATURE IN THE RANGE OF 35 TO 45* F.
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) | 1970-06-19 | 1970-12-19 | 1971-06-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-06-19 | 1974-12-19 | 1975-06-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-06-19 | 1978-12-19 | 1979-06-20 | $7700.00 | Window Closed / Lapsed |