US3178068A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Apparatus for conveying a column of material downward at a uniform rate
Assignee: Carrier Manufacturing Co
•
Filing: 1963-11-27
•
Granted: 1965-04-13
•
Expires: 1983-11-27
Abstract
No abstract record available.
Inventors
- 👤 George D Dumbaugh
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 08:51
CPC Classifications
B; B65; B65D; B65D88/00; B65D88/54; B65D88/64; B65D88/66; B65G; B65G65/00; B65G65/30; B65G65/34; B65G65/40; B65G65/44
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
121 words
A VORTEX-INDUCING APPARATUS FOR AGITATING COLUMN OF FLOWABLE MATERIAL IN A SYSTEMATIC MANNER TO CAUSE IT TO FLOW DOWNWARD, COMPRISING, IN COMBINATION, A VESSEL FOR HOLDING A COLUMN OF MATERIAL WHILE THE MATERIAL IS FLOWING DOWNWARD, WITHOUT OVERFLOW OF THE MATERIAL AT THE TOP, THE SIDE WALLS OF THE VESSEL BEING ROUNDED IN HORIZONTAL SECTION AND BEING DOWNWARDLY AND INWARDLY TAPERED, A MOUNTING WHICH SUPPORTS THE VESSEL FOR LIMITED HELICAL VIBRATORY MOVEMENT HAVING A VERTICAL COMPONENT AND HAVING ANOTHER COMPONENT CONSISTING OF OSCILLATION OF THE VESSEL ON ITS VERTICAL AXIS THROUGH A FRACTION OF A COMPLETE ROTATION, AND MECHANISM FOR IMPARTING SUCH A HELICAL VIBRATORY MOVEMENT TO THE VESSEL TO PRODUCE A RAPID INTERMITTENT SPIRAL FLOW OF THE MATERIAL, THE VESSEL
Claim 2
Dependent Claim
121 words
A VORTEX-INDUCING APPARATUS FOR AGITATING COLUMN OF FLOWABLE MATERIAL IN A SYSTEMATIC MANNER TO CAUSE IT TO FLOW DOWNWARD, COMPRISING, IN COMBINATION, A VESSEL FOR HOLDING A COLUMN OF MATERIAL WHILE THE MATERIAL IS FLOWING DOWNWARD, WITHOUT OVERFLOW OF THE MATERIAL AT THE TOP, THE SIDE WALLS OF THE VESSEL BEING ROUNDED IN HORIZONTAL SECTION AND BEING DOWNWARDLY AND INWARDLY TAPERED, A MOUNTING WHICH SUPPORTS THE VESSEL FOR LIMITED HELICAL VIBRATORY MOVEMENT HAVING A VERTICAL COMPONENT AND HAVING ANOTHER COMPONENT CONSISTING OF OSCILLATION OF THE VESSEL ON ITS VERTICAL AXIS THROUGH A FRACTION OF A COMPLETE ROTATION, AND MECHANISM FOR IMPARTING SUCH A HELICAL VIBRATORY MOVEMENT TO THE VESSEL TO PRODUCE A RAPID INTERMITTENT SPIRAL FLOW OF THE MATERIAL, THE VESSEL
References Cited (Backward Citations)
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US2760504A
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Cited
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1968-04-12 | 1968-10-12 | 1969-04-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-04-12 | 1972-10-12 | 1973-04-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-04-12 | 1976-10-12 | 1977-04-13 | $7700.00 | Window Closed / Lapsed |