Patent US3071353A successfully refreshed from Google Patents.
US3071353A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Rotary mixing blade
Assignee: Individual
•
Filing: 1961-03-13
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Granted: 1963-01-01
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Expires: 1981-03-13
Abstract
No abstract record available.
Inventors
- 👤 Klein Sidney
- 👤 Hockemeyer Herman
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 22:55
CPC Classifications
B; B01; B01F; B01F27/00; B01F27/05; B01F27/11; B01F27/115; B01F27/1152
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
99 words
A ROTARY MIXING BLADE COMPRISING A CIRCULAR DISC, MEANS TO SECURE THE DISC TO A MOTOR SHAFT, A PLURALITY OF CONCENTRIC RINGS SECURED TO THE DISC IN PARALLEL, SPACED RELATIONSHIP THERETO OVER ITS OUTER AREA, A PLURALITY OF TEETH INTEGRAL WITH THE DISC IN CIRCULAR SPACED RELATIONSHIP TO EACH OTHER, THE TEETH ABUTTING THE INNER PERIMETERS OF THE RINGS AND PROVIDED WITH CUTTING EDGES PERPENDICULAR TO THE PLANE OF THE DISC AND EXTENDING INWARDLY AT AN ACUTE ANGLE FROM THE INNER PERIPHERIES OF THE RINGS, THE CUTTING EDGES FACING IN THE DIRECTION OF THE ROTATION OF THE MIXING BLADE.
Claim 2
Dependent Claim
99 words
A ROTARY MIXING BLADE COMPRISING A CIRCULAR DISC, MEANS TO SECURE THE DISC TO A MOTOR SHAFT, A PLURALITY OF CONCENTRIC RINGS SECURED TO THE DISC IN PARALLEL, SPACED RELATIONSHIP THERETO OVER ITS OUTER AREA, A PLURALITY OF TEETH INTEGRAL WITH THE DISC IN CIRCULAR SPACED RELATIONSHIP TO EACH OTHER, THE TEETH ABUTTING THE INNER PERIMETERS OF THE RINGS AND PROVIDED WITH CUTTING EDGES PERPENDICULAR TO THE PLANE OF THE DISC AND EXTENDING INWARDLY AT AN ACUTE ANGLE FROM THE INNER PERIPHERIES OF THE RINGS, THE CUTTING EDGES FACING IN THE DIRECTION OF THE ROTATION OF THE MIXING BLADE.
References Cited (Backward Citations)
US2626135A
Cited
US2769623A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1965-12-31 | 1966-07-02 | 1967-01-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-12-31 | 1970-07-02 | 1971-01-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-12-31 | 1974-07-02 | 1975-01-01 | $7700.00 | Window Closed / Lapsed |