US3326532A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Mixing device
Assignee: Individual
•
Filing: 1965-08-31
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Granted: 1967-06-20
•
Expires: 1985-08-31
Abstract
No abstract record available.
Inventors
- 👤 Edmund R Lodge
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 20:43
CPC Classifications
B; B01; B01F; B01F27/00; B01F27/05; B01F27/051; B01F27/054; B01F27/0541; B01F27/80; B01F27/81
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
123 words
A DEVICE FOR MIXING A FLUID COMPRISING A DRIVE SHAFT, MEANS FOR DRIVING SAID SHAFT IN ROTATION, MEANS CARRIED BY SAID SHAFT INCLUDING TWO SETS EACH OF A MULTITUDE OF MIXING BLADES EACH HAVING A SURFACE DESIGNED FOR IMPARTING TURBULENCE TO SAID FLUID IN CONTACT THEREWITH, THEREBY CAUSING SAID MIXING, SOME OF SAID SETS OF BLADES BEING ARRANGED IN A CIRCULAR PATTERN CONCENTRIC WITH SAID DRIVE SHAFT AND SAID BLADE SURFACES SUBTENDING SUBSTANTIAL AREAS TRANSVERSE TO THEIR DIRECTION OF MOTION WHEN DRIVEN, SO THAT EACH BLADE SURFACE IMPARTS SUBSTANTIAL TURBULENCE TO SAID FLUID WHEN DRIVEN, AND MEANS FOR MOVING SAID BLADES RELATIVE TO SAID SHAFT THEREBY VARYING THE AREA OF SAID SURFACE THEREOF WHICH IMPART TURBULENCE TO SAID FLUID, TO VARY SAID MIXING.
Claim 2
Independent Claim
123 words
A DEVICE FOR MIXING A FLUID COMPRISING A DRIVE SHAFT, MEANS FOR DRIVING SAID SHAFT IN ROTATION, MEANS CARRIED BY SAID SHAFT INCLUDING TWO SETS EACH OF A MULTITUDE OF MIXING BLADES EACH HAVING A SURFACE DESIGNED FOR IMPARTING TURBULENCE TO SAID FLUID IN CONTACT THEREWITH, THEREBY CAUSING SAID MIXING, SOME OF SAID SETS OF BLADES BEING ARRANGED IN A CIRCULAR PATTERN CONCENTRIC WITH SAID DRIVE SHAFT AND SAID BLADE SURFACES SUBTENDING SUBSTANTIAL AREAS TRANSVERSE TO THEIR DIRECTION OF MOTION WHEN DRIVEN, SO THAT EACH BLADE SURFACE IMPARTS SUBSTANTIAL TURBULENCE TO SAID FLUID WHEN DRIVEN, AND MEANS FOR MOVING SAID BLADES RELATIVE TO SAID SHAFT THEREBY VARYING THE AREA OF SAID SURFACE THEREOF WHICH IMPART TURBULENCE TO SAID FLUID, TO VARY SAID MIXING.
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) | 1970-06-19 | 1970-12-19 | 1971-06-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-06-19 | 1974-12-19 | 1975-06-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-06-19 | 1978-12-19 | 1979-06-20 | $7700.00 | Window Closed / Lapsed |