US3347537A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Apparatus for aerating liquid mediums
Assignee: FMC Corp
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Filing: 1965-09-27
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Granted: 1967-10-17
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Expires: 1985-09-27
Abstract
No abstract record available.
Inventors
- 👤 Olive E Morgan
- 👤 Wicks Mrs John
- 👤 Paul F Morgan
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 08:04
CPC Classifications
C; C02; C02F; C02F3/00; C02F3/02; C02F3/12; C02F3/20; B; B01; B01F; B01F23/00; B01F23/20; B01F23/23; B01F23/231; B01F23/23105; B01F23/2311; B01F23/23113; Y; Y02; Y02W; Y02W10/00; Y02W10/10
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
167 words
APPARATUS FOR DISPERSING GAS IN A LIQUID MEDIUM WHICH COMPRISES A HOLDER FOR A LIQUID MEDIUM HAVING LATERAL BOUNDARIES AND A BOTTOM, MEANS FOR PASSING INFLUENT LIQUID MEDIUM INTO SAID HOLDER, MEANS FOR DISCHARGE OF TREATED LIQUID FROM SAID HOLDER, GAS DISPERSING MEANS SPACED FROM THE BOTTOM OF SAID HOLDER A DISTANCE CONSTITUTING BETWEEN ABOUT 10% AND 20% OF THE DISTANCE BETWEEN THE BOTTOM AND THE NORMAL LIQUID LEVEL OF SAID HOLDER, SAID GAS DISPERSING MEANS CONSISTING OF A SERIES OF SPACED UNITS ADAPTED TO DISCHARGE GAS IN BUBBLE FORM, SAID UNITS BEING ARRANGED IN A MULTIPLICITY OF SUBSTANTIALLY OF PARALLEL SPACED ROWS, THE DISTANCE BETWEEN PERIPHERIES OF ADJACENT ROWS OF GAS DISPERSING MEANS BEING BETWEEN 40% AND 150% OF THE SUM OF THE EFFECTIVE WIDTHS OF ADJACENT ROWS OF GAS DISPERSING MEANS BEING MEASURED IN THEIR PROJECTION AGAINST A PLANE POSITIONED AT A RIGHT ANGLE TO THE DIRECTION OF THE ROWS OF GAS DISPERSING MEANS AND CONDUIT MEANS FOR CONVEYING GAS TO SAID GAS DISPERSING MEANS.
Claim 2
Dependent Claim
167 words
APPARATUS FOR DISPERSING GAS IN A LIQUID MEDIUM WHICH COMPRISES A HOLDER FOR A LIQUID MEDIUM HAVING LATERAL BOUNDARIES AND A BOTTOM, MEANS FOR PASSING INFLUENT LIQUID MEDIUM INTO SAID HOLDER, MEANS FOR DISCHARGE OF TREATED LIQUID FROM SAID HOLDER, GAS DISPERSING MEANS SPACED FROM THE BOTTOM OF SAID HOLDER A DISTANCE CONSTITUTING BETWEEN ABOUT 10% AND 20% OF THE DISTANCE BETWEEN THE BOTTOM AND THE NORMAL LIQUID LEVEL OF SAID HOLDER, SAID GAS DISPERSING MEANS CONSISTING OF A SERIES OF SPACED UNITS ADAPTED TO DISCHARGE GAS IN BUBBLE FORM, SAID UNITS BEING ARRANGED IN A MULTIPLICITY OF SUBSTANTIALLY OF PARALLEL SPACED ROWS, THE DISTANCE BETWEEN PERIPHERIES OF ADJACENT ROWS OF GAS DISPERSING MEANS BEING BETWEEN 40% AND 150% OF THE SUM OF THE EFFECTIVE WIDTHS OF ADJACENT ROWS OF GAS DISPERSING MEANS BEING MEASURED IN THEIR PROJECTION AGAINST A PLANE POSITIONED AT A RIGHT ANGLE TO THE DIRECTION OF THE ROWS OF GAS DISPERSING MEANS AND CONDUIT MEANS FOR CONVEYING GAS TO SAID GAS DISPERSING MEANS.
References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1970-10-16 | 1971-04-17 | 1971-10-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-10-16 | 1975-04-17 | 1975-10-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-10-16 | 1979-04-17 | 1979-10-17 | $7700.00 | Window Closed / Lapsed |