Patent US3339896A successfully refreshed from Google Patents.
US3339896A
Expired / Lapsed
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Stirring device
Assignee: Southwestern Engineering Co
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Filing: 1966-06-03
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Granted: 1967-09-05
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Expires: 1986-06-03
Abstract
No abstract record available.
Inventors
- 👤 Richard K Mckibben
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 04:54
CPC Classifications
B; B02; B02C; B02C17/00; B02C17/16
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
82 words
A MACHINE FOR TREATING MATERIAL COMPRISING: (A) A VERTICALLY DISPERSED CONTAINER, AND (B) STIRRING MEANS COMPRISING: (1) A MOTOR INCLUDING A CASING AND A SHAFT ROTATABLE IN OPPOSITE DIRECTION; (2) BEARING MEANS FOR MOUNTING SAID MOTOR CASING ABOVE SAID CONTAINER FOR FREE ROTATION; (3) A FIRST SET OF STIRRING ELEMENTS CONNECTED TO SAID CASING AND EXTENDING INTO SAID CONTAINER FOR ROTATION THEREIN; AND (4) A SECOND SET OF STIRRING ELEMENTS CONNECTED TO SAID SHAFT AND EXTENDING INTO SAID CONTAINER FOR ROTATION THEREIN.
Claim 2
Dependent Claim
82 words
A MACHINE FOR TREATING MATERIAL COMPRISING: (A) A VERTICALLY DISPERSED CONTAINER, AND (B) STIRRING MEANS COMPRISING: (1) A MOTOR INCLUDING A CASING AND A SHAFT ROTATABLE IN OPPOSITE DIRECTION; (2) BEARING MEANS FOR MOUNTING SAID MOTOR CASING ABOVE SAID CONTAINER FOR FREE ROTATION; (3) A FIRST SET OF STIRRING ELEMENTS CONNECTED TO SAID CASING AND EXTENDING INTO SAID CONTAINER FOR ROTATION THEREIN; AND (4) A SECOND SET OF STIRRING ELEMENTS CONNECTED TO SAID SHAFT AND EXTENDING INTO SAID CONTAINER FOR ROTATION THEREIN.
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) | 1970-09-04 | 1971-03-06 | 1971-09-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-09-04 | 1975-03-06 | 1975-09-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-09-04 | 1979-03-06 | 1979-09-05 | $7700.00 | Window Closed / Lapsed |