US3606271A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Automatic mixer
Assignee: Ruffy Research & Engineering I
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Filing: 1969-08-04
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Granted: 1971-09-20
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Expires: 1989-08-04
Abstract
Abstract AN AUTOMATIC MIXER IS PROVIDED FOR MIXING A LIQUID AND POWDERED MATERIAL TOGETHER. THE MIXER INCLUDES A MIXING TANK AND A RESERVOIR FOR POWDERED MATERIAL. THE TANK IS FIRST FILLED WITH LIQUID. POWDER IN A DESIRED VOLUME IS THEN DISPENSED INTO THE TANK. THE CONTENTS OF THE TANK ARE AGITATED. ELECTRICAL CIRCUITRY IS PROVIDED TO AUTOMATE THE ENTIRE CYCLE OF OPERATION.
Inventors
- 👤 Robert T Schmidt
- 👤 Frederick J Sicheneder
- 👤 Paul W Rowe
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 17:50
CPC Classifications
B; B01; B01F; B01F35/00; B01F35/80; B01F35/896
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1974-09-19 | 1975-03-21 | 1975-09-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-09-19 | 1979-03-21 | 1979-09-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-09-19 | 1983-03-21 | 1983-09-20 | $7700.00 | Window Closed / Lapsed |