Patent US3215412A successfully refreshed from Google Patents.
US3215412A
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Mixing machine
Assignee: IBAG INTERNATIONALE BAUMASCHINENFABRIK AG
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Filing: 1964-07-29
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Granted: 1965-11-02
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Expires: 1984-07-29
Abstract
No abstract record available.
Inventors
- 👤 Kindler Manfred
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 11:19
CPC Classifications
E; E01; E01C; E01C19/00; E01C19/02; E01C19/10; E01C19/1013; E01C19/104; B; B01; B01F; B01F27/00; B01F27/80; B01F27/85; B28; B28C; B28C5/00; B28C5/08; B28C5/10; B28C5/12; B28C5/16; B28C5/166; B28C5/168
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
169 words
A MIXING MACHINE FOR CONCRETE OR THE LIKE COMPRISING A STATIONARY DRUM AND MIXING TOOLS ADAPTED TO ROTATE ABOUT THE VERTICAL CENTER AXIS OF THE MACHINE, SAID DRUM HAVING A BOTTOM PORTION AND A CIRCULAR UPPER WALL, SAID BOTTOM PORTION HAVING A FRUSTO CONICAL SURFACE PORTION EXTENDING FROM THE UPPER EXTERIOR AT THE LOWER END OF SAID WALL INWARDLY AND DOWNWARDLY AND DEFINING A CENTRAL CIRCULAR DISCHARGE APERTURE, AND A HORIZONTAL UNOBSTRUCTED BOTTOM PORTION OF GENERALLY CIRCULAR FORM DEFINING A CLOSURE FOR SAID DISCHARGE APERTURE, AND SAID MIXING TOOLS COMPRISING A PLURALITY OF OUTER MEMBERS SUCH AS BLADES HAVING SCRAPING EDGES SUPPORTED WITH SAID EDGES FOLLOWING THE ANGLE OF INCLINATION OF SAID CONICAL SURFACE FOR ROTATION ABOUT THE CENTER AXIS IN ONE DIRECTION TO SWEEP OVER SAID CONICAL SURFACE PORTION, AND A PLURALITY OF INNER MIXING ELEMENTS IN THE FORM OF VERTICAL RODS DISPOSED AT DIFFERENT DISTANCES FROM SAID CENTER AXIS, SUPPORTED FOR ROTATION ABOUT THE CENTER AXIS IN THE OPPOSITE DIRECTION TO SWEEP OVER SAID HORIZONTAL BOTTOM PORTION.
Claim 2
Dependent Claim
169 words
A MIXING MACHINE FOR CONCRETE OR THE LIKE COMPRISING A STATIONARY DRUM AND MIXING TOOLS ADAPTED TO ROTATE ABOUT THE VERTICAL CENTER AXIS OF THE MACHINE, SAID DRUM HAVING A BOTTOM PORTION AND A CIRCULAR UPPER WALL, SAID BOTTOM PORTION HAVING A FRUSTO CONICAL SURFACE PORTION EXTENDING FROM THE UPPER EXTERIOR AT THE LOWER END OF SAID WALL INWARDLY AND DOWNWARDLY AND DEFINING A CENTRAL CIRCULAR DISCHARGE APERTURE, AND A HORIZONTAL UNOBSTRUCTED BOTTOM PORTION OF GENERALLY CIRCULAR FORM DEFINING A CLOSURE FOR SAID DISCHARGE APERTURE, AND SAID MIXING TOOLS COMPRISING A PLURALITY OF OUTER MEMBERS SUCH AS BLADES HAVING SCRAPING EDGES SUPPORTED WITH SAID EDGES FOLLOWING THE ANGLE OF INCLINATION OF SAID CONICAL SURFACE FOR ROTATION ABOUT THE CENTER AXIS IN ONE DIRECTION TO SWEEP OVER SAID CONICAL SURFACE PORTION, AND A PLURALITY OF INNER MIXING ELEMENTS IN THE FORM OF VERTICAL RODS DISPOSED AT DIFFERENT DISTANCES FROM SAID CENTER AXIS, SUPPORTED FOR ROTATION ABOUT THE CENTER AXIS IN THE OPPOSITE DIRECTION TO SWEEP OVER SAID HORIZONTAL BOTTOM PORTION.
References Cited (Backward Citations)
GB157557A
Cited
US1767791A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1968-11-01 | 1969-05-03 | 1969-11-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-11-01 | 1973-05-03 | 1973-11-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-11-01 | 1977-05-03 | 1977-11-02 | $7700.00 | Window Closed / Lapsed |