US3559962A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Stirring device
Assignee: Binks Res & Dev
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Filing: 1968-06-10
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Granted: 1971-02-02
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Expires: 1988-06-10
Abstract
Abstract A device for stirring liquid contained in a bung-type drum, the stirring action being generated by a shaft-mounted rotor having vanes retractable into a configuration permitting insertion of the rotor through the bung with the shaft.
Inventors
- 👤 Bruno E Enssle
- 👤 Jerry P Malec
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 11:58
CPC Classifications
B; B01; B01F; B01F27/00; B01F27/05; B01F27/051; B01F27/054; B01F27/0542
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
173 words
In combination with a drum having a relatively small bung opening, a device for stirRing the contents of said drum comprising: a shaft insertable in said bung opening; a hub normally mounted on said shaft, said hub having pairs of generally radially-extending lugs; a vane rotatably mounted with respect to said hub between each of the lugs constituting said pairs, respectively, for movement between (a) retracted position in which said hub and vane are together insertable in said bung opening, and (b) extended position, said vane being induced to move outwardly and upwardly to extended position by movement of said shaft, said vanes having the portions thereof which are disposed between said lugs formed to provide a stop engageable with said hub to define the extended and retracted positions of said vanes, said vanes also having offset portions extending toward the axis of rotation of said hub in said retracted position and occupying the space opposite the end of said hub and shaft in said retracted position; and means for driving said shaft.
Claim 2
Dependent Claim
173 words
In combination with a drum having a relatively small bung opening, a device for stirRing the contents of said drum comprising: a shaft insertable in said bung opening; a hub normally mounted on said shaft, said hub having pairs of generally radially-extending lugs; a vane rotatably mounted with respect to said hub between each of the lugs constituting said pairs, respectively, for movement between (a) retracted position in which said hub and vane are together insertable in said bung opening, and (b) extended position, said vane being induced to move outwardly and upwardly to extended position by movement of said shaft, said vanes having the portions thereof which are disposed between said lugs formed to provide a stop engageable with said hub to define the extended and retracted positions of said vanes, said vanes also having offset portions extending toward the axis of rotation of said hub in said retracted position and occupying the space opposite the end of said hub and shaft in said retracted position; and means for driving said shaft.
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) | 1974-02-01 | 1974-08-03 | 1975-02-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-02-01 | 1978-08-03 | 1979-02-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-02-01 | 1982-08-03 | 1983-02-02 | $7700.00 | Window Closed / Lapsed |