US3669317A
Expired / Lapsed
US
⏱️ 0.0 years remaining
A device for unloading bulk material from reservoirs
Assignee: Individual
•
Filing: 1969-05-07
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Granted: 1972-06-13
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Expires: 1989-05-07
Abstract
Abstract A device is provided for unloading bulk materials from reservoirs by the use of the energy of a compressed gaseous medium. The device comprises elastic sloped walls disposed in the reservoir at the bottom thereof, the walls having a plurality of spaced passages therein which are connected to a system for the intermittent supply of a gaseous medium into the passages for imparting vibratory motion to the sloped walls, i.e., movement towards and away from the walls of the reservoir. Between the passages in the elastic walls there are provided porous sections which permit the flow of compressed gaseous medium therethrough and into the reservoir to impart fluidity to the bulk material therein.
Inventors
- 👤 Georgy Semenovich Ivchenko
- 👤 Anatoly Mikhailovic Berestovoi
- 👤 Vladislav Fedorovich Khanchas
- 👤 Nina Ivanovna Orlitskaya
- 👤 Anatoly Pavlovich Nikodimov
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 09:29
CPC Classifications
B; B65; B65D; B65D88/00; B65D88/54; B65D88/72; B65D88/58; B65D88/60; B65D88/62
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
106 words
A device for unloading bulk materials from reservoirs by the use of the energy of a compressed gaseous medium, said device comprising elastic sloped walls disposed in a reservoir at the bottom thereof, said walls having a plurality of spaced annular passages therein, porous sections in said elastic sloped walls between the said annular passages, means for supplying a compressed gaseous medium through said porous sections and into the reservoir to impart fluidity to the bulk material therein; and means for the intermittent supply of a gaseous medium into said passages for successively inflating and deflating said passages for imparting vibratory motion to said sloped walls.
Claim 2
Independent Claim
106 words
A device for unloading bulk materials from reservoirs by the use of the energy of a compressed gaseous medium, said device comprising elastic sloped walls disposed in a reservoir at the bottom thereof, said walls having a plurality of spaced annular passages therein, porous sections in said elastic sloped walls between the said annular passages, means for supplying a compressed gaseous medium through said porous sections and into the reservoir to impart fluidity to the bulk material therein; and means for the intermittent supply of a gaseous medium into said passages for successively inflating and deflating said passages for imparting vibratory motion to said sloped walls.
Claim 3
Dependent Claim
86 words
A device according to claim 1 wherein said reservoir is provided with an outlet at the lower end thereof, said device further comprising a pair of porous plates at the lower end of the reservoir and attached at and extending in opposite directions from said outlet, said porous plates having ends remote from said outlets with side edges attached to said elastic walls at the lower end thereof, said porous plates being non-rigid and being tilted by said elastic walls when the passages therein are inflated.
Claim 4
Dependent Claim
16 words
A device according to claim 2 wherein the diameter of said passages diminishes towards said outlet.
References Cited (Backward Citations)
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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) | 1975-06-13 | 1975-12-13 | 1976-06-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-06-13 | 1979-12-13 | 1980-06-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-06-13 | 1983-12-13 | 1984-06-13 | $7700.00 | Window Closed / Lapsed |