US3145544A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Refrigeration system impurity purge means
Assignee: American Radiator and Standard Sanitary Corp
•
Filing: 1961-11-07
•
Granted: 1964-08-25
•
Expires: 1981-11-07
Abstract
No abstract record available.
Inventors
- 👤 Peter A Weller
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 10:49
CPC Classifications
F; F25; F25B; F25B43/00; F25B43/04; F25B43/043
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
74 words
IN COMBINATION, A MECHANICAL REFRIGERATION SYSTEM; MEANS CONNECTED WITH SAID SYSTEM FOR PURGING SAME OF NON-CONDENSABLE GASES; MEANS CONNECTED WITH SAID SYSTEM FOR SEPARATING WATER FROM THE SYSTEM REFRIGERANT; MEANS FOR DIRECTING HIGH PRESSURE NON-CONDENSABLE GAS ACCUMULATIONS AGAINST THE SEPARATED WATER TO EXPEL SAME FROM THE WATER SEPARATOR MEANS WITHOUT EXPOSING THE REFRIGERATION SYSTEM TO THE ATMOSPHERE; AND AN ELECTRICALLY-OPERATED MEANS CONTROLLED BY THE PRESSURE OF THE NON-CONDENSABLE GASES TO CONTROL THE EXPELLING OPERATION.
Claim 2
Dependent Claim
74 words
IN COMBINATION, A MECHANICAL REFRIGERATION SYSTEM; MEANS CONNECTED WITH SAID SYSTEM FOR PURGING SAME OF NON-CONDENSABLE GASES; MEANS CONNECTED WITH SAID SYSTEM FOR SEPARATING WATER FROM THE SYSTEM REFRIGERANT; MEANS FOR DIRECTING HIGH PRESSURE NON-CONDENSABLE GAS ACCUMULATIONS AGAINST THE SEPARATED WATER TO EXPEL SAME FROM THE WATER SEPARATOR MEANS WITHOUT EXPOSING THE REFRIGERATION SYSTEM TO THE ATMOSPHERE; AND AN ELECTRICALLY-OPERATED MEANS CONTROLLED BY THE PRESSURE OF THE NON-CONDENSABLE GASES TO CONTROL THE EXPELLING OPERATION.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1967-08-25 | 1968-02-24 | 1968-08-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-08-25 | 1972-02-24 | 1972-08-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-08-25 | 1976-02-24 | 1976-08-25 | $7700.00 | Window Closed / Lapsed |