US3348829A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Aerator
Assignee: Allis Chalmers Corp
•
Filing: 1963-12-18
•
Granted: 1967-10-24
•
Expires: 1983-12-18
Abstract
No abstract record available.
Inventors
- 👤 Patrick G Grimes
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 20:00
CPC Classifications
C; C02; C02F; C02F3/00; C02F3/02; C02F3/08; C02F3/082; B; B01; B01F; B01F23/00; B01F23/20; B01F23/23; B01F23/234; B01F23/2342; C02F3/12; C02F3/14; C02F3/18; C02F3/26; Y; Y02; Y02W; Y02W10/00; Y02W10/10
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
102 words
A PRESSURIZED DEVICE FOR DISSOLVING AN OXYGEN CONTAINING GAS IN A LIQUID COMPRISING, IN COMBINATION, A PRESSURE RESISTANT SHELL HAVING A GAS INLET PORT FOR ADMITTING SAID OXYGEN CONTAINING GAS INTO THE UPPER PORTION OF SAID SHELL, MEANS FOR CONDUCTING SAID LIQUID THROUGH THE LOWER PORTION OF SAID SHELL, A SHAFT MOUNTED IN SAID SHELL FOR ROTATION ABOUT A HORIZONTAL AXIS, A PLURALITY OF AXIALLY SPACED DISKS SUPPORTED ON SAID SHAFT FOR ROTATION THEREWITH AND BEING PARTIALLY IMMERSED IN SAID LIQUID AND PARTIALLY EXPOSED TO SAID GAS IN SAID UPPER PORTION OF SAID SHELL ABOVE SAID LIQUID, MEANS FOR INCREASING THE SOLUBILITY
Claim 2
Dependent Claim
102 words
A PRESSURIZED DEVICE FOR DISSOLVING AN OXYGEN CONTAINING GAS IN A LIQUID COMPRISING, IN COMBINATION, A PRESSURE RESISTANT SHELL HAVING A GAS INLET PORT FOR ADMITTING SAID OXYGEN CONTAINING GAS INTO THE UPPER PORTION OF SAID SHELL, MEANS FOR CONDUCTING SAID LIQUID THROUGH THE LOWER PORTION OF SAID SHELL, A SHAFT MOUNTED IN SAID SHELL FOR ROTATION ABOUT A HORIZONTAL AXIS, A PLURALITY OF AXIALLY SPACED DISKS SUPPORTED ON SAID SHAFT FOR ROTATION THEREWITH AND BEING PARTIALLY IMMERSED IN SAID LIQUID AND PARTIALLY EXPOSED TO SAID GAS IN SAID UPPER PORTION OF SAID SHELL ABOVE SAID LIQUID, MEANS FOR INCREASING THE SOLUBILITY
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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) | 1970-10-23 | 1971-04-24 | 1971-10-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-10-23 | 1975-04-24 | 1975-10-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-10-23 | 1979-04-24 | 1979-10-24 | $7700.00 | Window Closed / Lapsed |