Patent US3419386A successfully refreshed from Google Patents.
Patent US3138005A successfully refreshed from Google Patents.
US3138005A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Purge arrangements
Assignee: Carrier Corp
•
Filing: 1962-03-28
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Granted: 1964-06-23
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Expires: 1982-03-28
Abstract
No abstract record available.
Inventors
- 👤 Joseph R Bourne
- 👤 Keith V Eisberg
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 21:24
CPC Classifications
F; F25; F25B; F25B43/00; F25B43/04; F25B43/046
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
103 words
A PURGE ARRANGEMENT FOR REMOVING RELATIVELY NONCONDENSIBLE GASES FROM A PORTION OF A REFRIGERATION SYSTEM AND DISCHARGING THEM TO A DESIRED EXTERIOR REGION COMPRISING: (A) A SEPARATION CHAMBER FOR STORING RELATIVELY NONCONDENSIBLE GASES, (B) MEANS FOR PASSING SAID RELATIVELY NONCONDENSIBLE GASES FROM SAID PORTION OF SAID REFRIGERATION SYSTEM TO SAID SEPARATION CHAMBER, (C) EXHAUST VALVE MEANS FOR PASSING SAID RELATIVELY NONCONDENSIBLE GASES FROM SAID SEPARATION CHAMBER TO SAID DESIRED REGION WHILE SUBSTANTIALLY PREVENTING PASSAGE OF AMBIENT FLUID FROM SAID DESIRED REGION TO SAID SEPARATION CHAMBER, AND (D) MEANS FOR PASSING LIQUID TO SAID SEPARATION CHAMBER UNDER A PRESSURE GREATER THAN THE PRESSURE IN
Claim 2
Dependent Claim
103 words
A PURGE ARRANGEMENT FOR REMOVING RELATIVELY NONCONDENSIBLE GASES FROM A PORTION OF A REFRIGERATION SYSTEM AND DISCHARGING THEM TO A DESIRED EXTERIOR REGION COMPRISING: (A) A SEPARATION CHAMBER FOR STORING RELATIVELY NONCONDENSIBLE GASES, (B) MEANS FOR PASSING SAID RELATIVELY NONCONDENSIBLE GASES FROM SAID PORTION OF SAID REFRIGERATION SYSTEM TO SAID SEPARATION CHAMBER, (C) EXHAUST VALVE MEANS FOR PASSING SAID RELATIVELY NONCONDENSIBLE GASES FROM SAID SEPARATION CHAMBER TO SAID DESIRED REGION WHILE SUBSTANTIALLY PREVENTING PASSAGE OF AMBIENT FLUID FROM SAID DESIRED REGION TO SAID SEPARATION CHAMBER, AND (D) MEANS FOR PASSING LIQUID TO SAID SEPARATION CHAMBER UNDER A PRESSURE GREATER THAN THE PRESSURE IN
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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) | 1967-06-23 | 1967-12-23 | 1968-06-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-06-23 | 1971-12-23 | 1972-06-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-06-23 | 1975-12-23 | 1976-06-23 | $7700.00 | Window Closed / Lapsed |