Patent US3194543A successfully refreshed from Google Patents.
US3194543A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Mixer
Assignee: Simpson Herbert Corp
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Filing: 1963-10-31
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Granted: 1965-07-13
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Expires: 1983-10-31
Abstract
No abstract record available.
Inventors
- 👤 Robert L Mcilvaine
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 18:58
CPC Classifications
B; B02; B02C; B02C15/00; B02C15/14; B01; B01F; B01F27/00; B01F27/80; B01F27/82; B22; B22C; B22C5/00; B22C5/04; B22C5/0409; B22C5/0422; B22C5/0427
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
224 words
A MIXER COMPRISING A MIXING CHAMBER HAVING A BOTTOM WALL AND A CIRCULAR SIDE WALL, A CROSS-HEAD IN SAID CHAMBER ROTATABLE IN ONE DIRECTION ABOUT A FIRST AXIS NORMAL TO SAID BOTTOM WALL AND CENTRALLY DISPOSED IN RELATION TO SAID CIRCULAR SIDE WALL, SAID CROSS-HEAD INCLUDING A SUPPORT ARM EXTENDING RADIALLY OUTWARD FROM SAID FIRST AXIS, A SCRAPER MECHANISM CARRIED ADJACENT THE OUTER END OF SAID SUPPORT ARM, SAID MECHANISM INCLUDING A SCRAPER HAVING A NORMAL POSITION WITH ITS OUTER EDGE CLOSELY ADJACENT SAID CIRCULAR SIDE WALL AND ITS LOWER EDGE CLOSELY ADJACENT SAID BOTTOM WALL, A SCRAPER SUPPORT CARRYING SAID SCRAPER AND PIVOTALLY SECURED ADJACENT THE OUTER END OF SAID SUPPORT ARM ABOUT A SECOND AXIS, SAID SECOND AXIS POSITIONED TO ALLOW SAID SCRAPER TO PIVOTALLY MOVE FROM ITS NORMAL POSITION TO A SECOND POSITION WHEREIN SAID OUTER EDGE IS SPACED INWARDLY AWAY FROM SAID CIRCULAR SIDE WALL AND SAID LOWER EDGE IS SPACED UPWARDLY AWAY FROM SAID BOTTOM WALL AND FRANGIBLE STOP MEANS INTERCONNECTING SAID SUPPORT ARM AND SAID SCRAPER SUPPORT AT A POSITION SPACED FROM SAID SECOND AXIS FOR MAINTAINING SAID SCRAPER IN SAID NORMAL POSITION AND FRANGIBLE WHEN SAID SCRAPER IS SUBJECTED TO A FORCE OF PREDETERMINED MAGNITUDE IN A DIRECTION OPPOSED TO THE DIRECTION OF ROTATION OF SAID CROSSHEAD ALLOWING SAID SCRAPER TO PIVOTALLY MOVE TO SAID SECOND POSITION.
Claim 2
Dependent Claim
224 words
A MIXER COMPRISING A MIXING CHAMBER HAVING A BOTTOM WALL AND A CIRCULAR SIDE WALL, A CROSS-HEAD IN SAID CHAMBER ROTATABLE IN ONE DIRECTION ABOUT A FIRST AXIS NORMAL TO SAID BOTTOM WALL AND CENTRALLY DISPOSED IN RELATION TO SAID CIRCULAR SIDE WALL, SAID CROSS-HEAD INCLUDING A SUPPORT ARM EXTENDING RADIALLY OUTWARD FROM SAID FIRST AXIS, A SCRAPER MECHANISM CARRIED ADJACENT THE OUTER END OF SAID SUPPORT ARM, SAID MECHANISM INCLUDING A SCRAPER HAVING A NORMAL POSITION WITH ITS OUTER EDGE CLOSELY ADJACENT SAID CIRCULAR SIDE WALL AND ITS LOWER EDGE CLOSELY ADJACENT SAID BOTTOM WALL, A SCRAPER SUPPORT CARRYING SAID SCRAPER AND PIVOTALLY SECURED ADJACENT THE OUTER END OF SAID SUPPORT ARM ABOUT A SECOND AXIS, SAID SECOND AXIS POSITIONED TO ALLOW SAID SCRAPER TO PIVOTALLY MOVE FROM ITS NORMAL POSITION TO A SECOND POSITION WHEREIN SAID OUTER EDGE IS SPACED INWARDLY AWAY FROM SAID CIRCULAR SIDE WALL AND SAID LOWER EDGE IS SPACED UPWARDLY AWAY FROM SAID BOTTOM WALL AND FRANGIBLE STOP MEANS INTERCONNECTING SAID SUPPORT ARM AND SAID SCRAPER SUPPORT AT A POSITION SPACED FROM SAID SECOND AXIS FOR MAINTAINING SAID SCRAPER IN SAID NORMAL POSITION AND FRANGIBLE WHEN SAID SCRAPER IS SUBJECTED TO A FORCE OF PREDETERMINED MAGNITUDE IN A DIRECTION OPPOSED TO THE DIRECTION OF ROTATION OF SAID CROSSHEAD ALLOWING SAID SCRAPER TO PIVOTALLY MOVE TO SAID SECOND POSITION.
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) | 1968-07-12 | 1969-01-11 | 1969-07-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-07-12 | 1973-01-11 | 1973-07-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-07-12 | 1977-01-11 | 1977-07-13 | $7700.00 | Window Closed / Lapsed |