US3817407A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Silo for granular or pulverulent materials
Assignee: Individual
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Filing: 1972-10-13
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Granted: 1974-06-18
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Expires: 1992-10-13
Abstract
Abstract This silo having a circular cross-section and a vertical axis comprises near its bottom a diametral beam of inverted V configuration for sheltering the mechanism within the silo driving the discharge member against the action of the stored material. This mechanism may be disposed above or beneath the floor and the beam is so dimensioned and positioned that the natural angle of repose of the stored material cannot impinge directly, by gravity, upon the mechanism.
Inventors
- 👤 P Cantenot
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 23:04
CPC Classifications
B; B65; B65G; B65G65/00; B65G65/30; B65G65/34; B65G65/40; B65G65/46; B65G65/466
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
182 words
A silo for the storage and dispensing of flowable solid material, comprising: a vessel having a bottom and a vertically extending cylindrical wall surrounding a vertical axis; an elongated hollow beam of inverted-V cross-section extending diametrically within said vessel close to but spaced above said bottom between diametrically spaced portions of said lateral wall and reaching thereto; a central opening formed in said body below said beam for discharging said material upon the displacement thereof to said opening, said beam being dimensioned and shaped to prevent said material from self-flow through said opening; a radially extending discharge device displaceable to advance said material inwardly toward said opening; drive means above said bottom beneath said beam and sheltered thereby from said material for displacing said device to advance said material toward said opening and for rotating said device about said axis to sweep said device along said bottom; and lateral apertures formed in said portions of said wall and opening into said beam for affording access to said device and said driving means within a space sheltered from said material by said beam.
Claim 2
Dependent Claim
182 words
A silo for the storage and dispensing of flowable solid material, comprising: a vessel having a bottom and a vertically extending cylindrical wall surrounding a vertical axis; an elongated hollow beam of inverted-V cross-section extending diametrically within said vessel close to but spaced above said bottom between diametrically spaced portions of said lateral wall and reaching thereto; a central opening formed in said body below said beam for discharging said material upon the displacement thereof to said opening, said beam being dimensioned and shaped to prevent said material from self-flow through said opening; a radially extending discharge device displaceable to advance said material inwardly toward said opening; drive means above said bottom beneath said beam and sheltered thereby from said material for displacing said device to advance said material toward said opening and for rotating said device about said axis to sweep said device along said bottom; and lateral apertures formed in said portions of said wall and opening into said beam for affording access to said device and said driving means within a space sheltered from said material by said beam.
Claim 3
Dependent Claim
73 words
The silo defined in claim 1, wherein said drive means includes a bevel gearing, having a shaft extending along said axis and connected to said bevel gearing, said device comprising a screw rotatable by said bevel gearing and extending radially along said bottom of said vessel, said silo further comprising a motor and reduction gearing disposed above said bottom and below said beam within said vessel and operatively connected to said bevel gearing.
Claim 4
Dependent Claim
89 words
The silo defined in claim 1 further comprising means forming a compartment aligned with said opening and disposed below said bottom for receiving said material, said compartment having a lateral outlet; a shaft extending along said axis and through said compartment; a motor and reduction gear assembly disposed below said bottom and operatively connected to said shaft for driving same; and a twin blade rotor on said shaft in said compartment for displacing said material to said outlet, said drive meanS including bevel gearing operatively connected to 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) | 1977-06-17 | 1977-12-17 | 1978-06-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-06-17 | 1981-12-17 | 1982-06-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-06-17 | 1985-12-17 | 1986-06-18 | $7700.00 | Window Closed / Lapsed |