US3261593A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Fluid mixing process and apparatus
Assignee: Pennwalt Corp
•
Filing: 1963-12-20
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Granted: 1966-07-19
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Expires: 1983-12-20
Abstract
No abstract record available.
Inventors
- 👤 Thomas D Sharples
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 17:44
CPC Classifications
B; B01; B01F; B01F25/00; B01F25/10; B01F25/102; B01F2025/91; B01F2025/919; B01F2025/9191
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
61 words
A FLUID MIXER COMPRISING AT LEAST TWO VORTEX HOUSINGS EACH HAVING AN INLET DIRECTING INCOMING FLUID TO ONE SIDE OF THE AXIS THEREOF FOR PRODUCING VORTICES ROTATING IN OPPOSITE SENSES OF DIRECTION WHEN VIEWED FROM ONE END OF THE MIXER, A MIXING HOUSING, WALL MEANS SEPARATING EACH VORTEX HOUSING FROM THE MIXING HOUSING, THE WALL MEANS HAVING CENTRAL OPENINGS PERMITTING COMMU-
Claim 2
Dependent Claim
61 words
A FLUID MIXER COMPRISING AT LEAST TWO VORTEX HOUSINGS EACH HAVING AN INLET DIRECTING INCOMING FLUID TO ONE SIDE OF THE AXIS THEREOF FOR PRODUCING VORTICES ROTATING IN OPPOSITE SENSES OF DIRECTION WHEN VIEWED FROM ONE END OF THE MIXER, A MIXING HOUSING, WALL MEANS SEPARATING EACH VORTEX HOUSING FROM THE MIXING HOUSING, THE WALL MEANS HAVING CENTRAL OPENINGS PERMITTING COMMU-
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) | 1969-07-18 | 1970-01-17 | 1970-07-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-07-18 | 1974-01-17 | 1974-07-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-07-18 | 1978-01-17 | 1978-07-19 | $7700.00 | Window Closed / Lapsed |