US2872297A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Apparatus for converting liquid anhydrous ammonia to aqua ammonia
Assignee: Flo-Mix Fertilizers Corp
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Filing: 1955-01-11
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Granted: 1959-02-03
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Expires: 1975-01-11
Abstract
No abstract record available.
Inventors
- 👤 John W Dugan
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 11:09
CPC Classifications
C; C01; C01C; C01C1/00; C01C1/02; C01C1/022; Y; Y10; Y10T; Y10T137/00; Y10T137/8593; Y10T137/87571; Y10T137/87652; Y10T137/8766
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
179 words
APPARATUS FOR CONVERTTING LIQUID ANHYDROUS AMMONIA TO AQUA AMMONIA COMPRISING A FIRST VESSEL PROVIDING A LIQUID ANHYDROUS AMMONIA RECEIVING CHAMBER; A SECOND VESSEL IN CONCENTRIC SURROUNDING RELATION WITH SAID FIRST VESSEL AND PROVIDING A LIQUID ANHYDROUS AMMONIA PRESSURE REDUCING CHAMBER; MEANS COMMUNICATING WITH SAID LIQUID ANHYDROUS AMMONIA RECEIVING CHAMBER AND SAID PRESSURE REDUCING CHAMBER FOR DELIVERING LIQUID ANHYDROUS AMMONIA FROM SAID LIQUID ANHYDROUS AMMONIA RECEIVING CHAMBER INTO SAID PRESSURE REDUCING CHAMBER; A THIRD VESSEL IN CONCENTRIC SURROUNDING RELATION WITH SAID FIRST AND SECOND VESSELS AND PROVIDING A WATER AND LIQUID ANHYDROUS AMMONIA MIXING CHAMBER: MEANS COMMUNICATING WITH SAID PRESSURE REDUCING CHAMBER AND SAID MIXING CHAMBER FOR DELIVERING REDUCED PRESSURE ANHYDROUS AMMONIA FROM SAID PRESSURE REDUCING CHAMBER INTO SAID MIXING CHAMBER; A FOURTH VESSEL IN CONCENTRIC SURROUNDING RELATION WITH SAID FIRST, SECOND, AND THIRD VESSELS AND PROVIDING A WATER RECEIVING CHAMBER; AND MEANS COMMUNICATING WITH SAID MIXING CHAMBER AND SAID WATER RECEIVING CHAMBER FOR DELIVERYING WATER FROM SAID WATER RECEIVING CHAMBER INTO SAID MIXING CHAMBER, SAID MIXING CHAMBER BEING INTERPOSED BETWEEN SAID PRESSURE REDUCING CHAMBER AND SAID WATER RECEIVING CHAMBER.
Claim 2
Dependent Claim
179 words
APPARATUS FOR CONVERTTING LIQUID ANHYDROUS AMMONIA TO AQUA AMMONIA COMPRISING A FIRST VESSEL PROVIDING A LIQUID ANHYDROUS AMMONIA RECEIVING CHAMBER; A SECOND VESSEL IN CONCENTRIC SURROUNDING RELATION WITH SAID FIRST VESSEL AND PROVIDING A LIQUID ANHYDROUS AMMONIA PRESSURE REDUCING CHAMBER; MEANS COMMUNICATING WITH SAID LIQUID ANHYDROUS AMMONIA RECEIVING CHAMBER AND SAID PRESSURE REDUCING CHAMBER FOR DELIVERING LIQUID ANHYDROUS AMMONIA FROM SAID LIQUID ANHYDROUS AMMONIA RECEIVING CHAMBER INTO SAID PRESSURE REDUCING CHAMBER; A THIRD VESSEL IN CONCENTRIC SURROUNDING RELATION WITH SAID FIRST AND SECOND VESSELS AND PROVIDING A WATER AND LIQUID ANHYDROUS AMMONIA MIXING CHAMBER: MEANS COMMUNICATING WITH SAID PRESSURE REDUCING CHAMBER AND SAID MIXING CHAMBER FOR DELIVERING REDUCED PRESSURE ANHYDROUS AMMONIA FROM SAID PRESSURE REDUCING CHAMBER INTO SAID MIXING CHAMBER; A FOURTH VESSEL IN CONCENTRIC SURROUNDING RELATION WITH SAID FIRST, SECOND, AND THIRD VESSELS AND PROVIDING A WATER RECEIVING CHAMBER; AND MEANS COMMUNICATING WITH SAID MIXING CHAMBER AND SAID WATER RECEIVING CHAMBER FOR DELIVERYING WATER FROM SAID WATER RECEIVING CHAMBER INTO SAID MIXING CHAMBER, SAID MIXING CHAMBER BEING INTERPOSED BETWEEN SAID PRESSURE REDUCING CHAMBER AND SAID WATER RECEIVING CHAMBER.
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) | 1962-02-02 | 1962-08-04 | 1963-02-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-02-02 | 1966-08-04 | 1967-02-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-02-02 | 1970-08-04 | 1971-02-03 | $7700.00 | Window Closed / Lapsed |