US3224744A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Vertical mixer construction
Assignee: JH Day Co
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Filing: 1964-03-30
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Granted: 1965-12-21
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Expires: 1984-03-30
Abstract
No abstract record available.
Inventors
- 👤 Robert M Broomall
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 19:03
CPC Classifications
B; B01; B01F; B01F27/00; B01F27/80; B01F27/95; B01F27/951; B01F27/805; B01F27/23; B01F27/232; B01F27/2322; B01F27/2324
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
151 words
A VERTICAL MIXER COMPRISING A VACUUM SHROUD HAVING A LOWER SHOULDER ADAPTED FOR AIRTIGHT ENGAGEMENT WITH THE RIM OF A BOWL, A ROTATABLE MIXING HEAD DISPOSED WITHIN SAID VACUUM SHROUD ABOVE SAID SHOULDER, A CENTER SHAFT DEPENDING FROM SAID MIXING HEAD, A PLANETARY SHAFT DEPENDING FROM SAID MIXING HEAD, AN ELECTRIC MOTOR MOUNTED UPON SAID MIXER, MEANS INTERCONNECTING SAID MOTOR AND SAID CENTER SHAFT FOR ROTATING SAID SHAFT IN A FIRST DIRECTION, MEANS INTERCONNECTING SAID FIRST SHAFT AND SAID PLANETARY SHAFT FOR ROTATING SAID PLANETARY SHAFT ABOUT ITS OWN AXIS IN THE OPPOSITE DIRECTION FROM THE ROTATION OF SAID CENTER SHAFT AND FOR SIMULTANEOUSLY MOVING SAID PLANETARY SHAFT PLANET-WISE ABOUT SAID CENTER SHAFT, FIRST MEANS FOR DRAWING A VACUUM UPON THE INTERIOR OF SAID BOWL, SEALING MEANS EXTENDING INWARDLY FROM SAID SHROUD TO FORM A TRANSVERSE SEAL BETWEEN SAID SHROUD AND SAID MIXING HEAD, AND SECOND MEANS FOR DRAWING A VACUUM
Claim 2
Dependent Claim
151 words
A VERTICAL MIXER COMPRISING A VACUUM SHROUD HAVING A LOWER SHOULDER ADAPTED FOR AIRTIGHT ENGAGEMENT WITH THE RIM OF A BOWL, A ROTATABLE MIXING HEAD DISPOSED WITHIN SAID VACUUM SHROUD ABOVE SAID SHOULDER, A CENTER SHAFT DEPENDING FROM SAID MIXING HEAD, A PLANETARY SHAFT DEPENDING FROM SAID MIXING HEAD, AN ELECTRIC MOTOR MOUNTED UPON SAID MIXER, MEANS INTERCONNECTING SAID MOTOR AND SAID CENTER SHAFT FOR ROTATING SAID SHAFT IN A FIRST DIRECTION, MEANS INTERCONNECTING SAID FIRST SHAFT AND SAID PLANETARY SHAFT FOR ROTATING SAID PLANETARY SHAFT ABOUT ITS OWN AXIS IN THE OPPOSITE DIRECTION FROM THE ROTATION OF SAID CENTER SHAFT AND FOR SIMULTANEOUSLY MOVING SAID PLANETARY SHAFT PLANET-WISE ABOUT SAID CENTER SHAFT, FIRST MEANS FOR DRAWING A VACUUM UPON THE INTERIOR OF SAID BOWL, SEALING MEANS EXTENDING INWARDLY FROM SAID SHROUD TO FORM A TRANSVERSE SEAL BETWEEN SAID SHROUD AND SAID MIXING HEAD, AND SECOND MEANS FOR DRAWING A VACUUM
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) | 1968-12-20 | 1969-06-21 | 1969-12-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-12-20 | 1973-06-21 | 1973-12-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-12-20 | 1977-06-21 | 1977-12-21 | $7700.00 | Window Closed / Lapsed |