Patent US3233422A successfully refreshed from Google Patents.
US3233422A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Refrigeration system
Assignee: Individual
•
Filing: 1964-04-20
•
Granted: 1966-02-08
•
Expires: 1984-04-20
Abstract
No abstract record available.
Inventors
- 👤 Louis M Kobrin
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 05:24
CPC Classifications
F; F25; F25D; F25D15/00; F25D17/00; F25D17/04; F25D17/06; F25D17/08
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
151 words
A REFRIGERATION SYSTEM COMPRISING: A REFRIGERATED SPACE; MEANS PROVIDING ACCESS TO SAID SPACE FOR THE INSERTION AND WITHDRAWAL OF ARTICLES TO BE REFRIGERATED; A CLOSED CYCLE REFRIGERATION APPARATUS INCLUDING AN EVAPORATOR COIL AT THE EXTERIOR OF SAID REFRIGERATED SPACE; MEANS INCLUDING SAID APPARATUS FOR MAINTAINIGN SAID COIL CONTINUOUSLY AT COLD, REFRIGERATING TEMPERATURE; AND AIR SUPPLY CONDUIT CONNECTED TO SAID REFRIGERATED SPACE; AN AIR WITHDRAWAL CONDUIT CONNECTED TO SAID REFRIGERATED SPACE; AIR FLOW INDUCING MEANS FOR PASSING AIR ACROSS SAID EVAPORATOR COIL TO SAID AIR SUPPLY CONDUIT; MEANS CONTINUOUSLY ENERGIZING SAID AIR FLOW INDUCING MEANS; MEANS CONNECTING SAID AIR WITHDRAWAL CONDUIT TO THE INLET TO SAID AIR FLOW INDUCING MEANS TO FORM A CLOSED CIRCUIT FOR CIRCULATING AIR BETWEEN SAID EVAPORATOR COIL AND SAID REFRIGERATED SPACE; A TEMPERATURE SENSOR IN SAID REFRIGERATED SPACE; DAMPER MEANS IN BOTH SAID SUPPLY AND WITHDRAWAL CONDUITS; AND MEANS FOR CONCURRENTLY CONTROLLING SAID DAMPER MEANS IN THE
Claim 2
Dependent Claim
151 words
A REFRIGERATION SYSTEM COMPRISING: A REFRIGERATED SPACE; MEANS PROVIDING ACCESS TO SAID SPACE FOR THE INSERTION AND WITHDRAWAL OF ARTICLES TO BE REFRIGERATED; A CLOSED CYCLE REFRIGERATION APPARATUS INCLUDING AN EVAPORATOR COIL AT THE EXTERIOR OF SAID REFRIGERATED SPACE; MEANS INCLUDING SAID APPARATUS FOR MAINTAINIGN SAID COIL CONTINUOUSLY AT COLD, REFRIGERATING TEMPERATURE; AND AIR SUPPLY CONDUIT CONNECTED TO SAID REFRIGERATED SPACE; AN AIR WITHDRAWAL CONDUIT CONNECTED TO SAID REFRIGERATED SPACE; AIR FLOW INDUCING MEANS FOR PASSING AIR ACROSS SAID EVAPORATOR COIL TO SAID AIR SUPPLY CONDUIT; MEANS CONTINUOUSLY ENERGIZING SAID AIR FLOW INDUCING MEANS; MEANS CONNECTING SAID AIR WITHDRAWAL CONDUIT TO THE INLET TO SAID AIR FLOW INDUCING MEANS TO FORM A CLOSED CIRCUIT FOR CIRCULATING AIR BETWEEN SAID EVAPORATOR COIL AND SAID REFRIGERATED SPACE; A TEMPERATURE SENSOR IN SAID REFRIGERATED SPACE; DAMPER MEANS IN BOTH SAID SUPPLY AND WITHDRAWAL CONDUITS; AND MEANS FOR CONCURRENTLY CONTROLLING SAID DAMPER MEANS IN THE
References Cited (Backward Citations)
US1913433A
Cited
US2198449A
Cited
US2286115A
Cited
US2292335A
Cited
US2350497A
Cited
US2432587A
Cited
US2928258A
Cited
US2939296A
Cited
US3115017A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1969-02-07 | 1969-08-09 | 1970-02-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-02-07 | 1973-08-09 | 1974-02-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-02-07 | 1977-08-09 | 1978-02-08 | $7700.00 | Window Closed / Lapsed |