US3972512A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Mixing materials in containers
Assignee: Individual
•
Filing: 1974-12-19
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Granted: 1976-08-03
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Expires: 1994-12-19
Abstract
Abstract A container for materials to be mixed e.g., paint, said container having a removable plug in an aperture, said plug being removable for adding materials to the mixture, the plug having a diaphragm to be pierced by a single sharp mixing member and including means to rotate the mixing member while the container is completely closed. The mixing member is a needle or the like having its major portion at an angle to the axis of the means rotating it.
Inventors
- 👤 Frederick G. J. Grise
- 👤 Walter Lovell
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 18:38
CPC Classifications
B; B01; B01F; B01F27/00; B01F27/05; B01F27/051; B01F27/054; B01F27/80; B01F27/805; B01F33/00; B01F33/50; B01F33/501; B01F33/5011; B01F35/00; B01F35/30; B01F35/32; B01F35/32005; B01F35/3204; B01F27/11; B01F27/119; Y; Y10; Y10S; Y10S366/00; Y10S366/605
Claims Analysis
Total Claims: 3
Claim 1
Independent Claim
69 words
The method of mixing material in a closed container comprising advancing a generally straight single element needle having a sharpened end portion at an incline relative thereto piercing through a re-piercable and reclosing elastomeric diaphragm on a wall of the container, and then by rotating the needle, forming a pumping action on the material throughout the container between top and bottom of the container while it is completely closed.
Claim 2
Independent Claim
69 words
The method of mixing material in a closed container comprising advancing a generally straight single element needle having a sharpened end portion at an incline relative thereto piercing through a re-piercable and reclosing elastomeric diaphragm on a wall of the container, and then by rotating the needle, forming a pumping action on the material throughout the container between top and bottom of the container while it is completely closed.
Claim 3
Dependent Claim
20 words
The method of claim 1 including wiping the needle by the diaphragm upon withdrawal of the needle from the container.
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) | 1979-08-03 | 1980-02-02 | 1980-08-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1983-08-03 | 1984-02-02 | 1984-08-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1987-08-03 | 1988-02-02 | 1988-08-03 | $7700.00 | Window Closed / Lapsed |