US3602380A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Material dispensing apparatus having a tapered bin with bottom screws and material supporting agitators
Assignee: ERNEST SPENCER ENGINEERING CO
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Filing: 1968-11-29
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Granted: 1971-08-31
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Expires: 1988-11-29
Abstract
Abstract A material dispensing machine that is provided with a storage bin to receive moist feed and the like with agitator means in the lower portion of the bin to prevent the moist material from bridging or hanging up, and a plurality of screw feed means disposed below said agitator means for conveying the material from the bottom of the bin to a weight hopper and the like.
Inventors
- 👤 Godfrey M Spencer
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 22:45
CPC Classifications
A; A01; A01K; A01K5/00; A01K5/02; B; B65; B65G; B65G65/00; B65G65/30; B65G65/34; B65G65/40; B65G65/46
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
180 words
A large capacity material storage and dispensing unit including a downwardly diverging tapered storage bin adapted to store and dispense tons of wet livestock feed material, said bin having an outlet opening at the lower end of one side thereof, a bottom wall for said bin sloping toward said outlet opening, a plurality of screw feed members extending completely across said bottom wall and projecting through said outlet opening, each of said screw feed members being tapered with its largest portion at the discharge end thereof, the bottom of said screws being substantially parallel to said bottom wall, means for simultaneously rotating said screw feed members, a plurality of horizontal parallel agitator members above said screw feed members in the central portion of said bin laterally spaced so as to entirely support the weight of material in said bin and for selectively agitating and feeding the material to be supplied to said screw feed members at a rate less than the feed rate of said screw members, and means for rotating said agitator members independently of said screw feed members.
Claim 2
Dependent Claim
180 words
A large capacity material storage and dispensing unit including a downwardly diverging tapered storage bin adapted to store and dispense tons of wet livestock feed material, said bin having an outlet opening at the lower end of one side thereof, a bottom wall for said bin sloping toward said outlet opening, a plurality of screw feed members extending completely across said bottom wall and projecting through said outlet opening, each of said screw feed members being tapered with its largest portion at the discharge end thereof, the bottom of said screws being substantially parallel to said bottom wall, means for simultaneously rotating said screw feed members, a plurality of horizontal parallel agitator members above said screw feed members in the central portion of said bin laterally spaced so as to entirely support the weight of material in said bin and for selectively agitating and feeding the material to be supplied to said screw feed members at a rate less than the feed rate of said screw members, and means for rotating said agitator members independently of said screw feed members.
Claim 3
Dependent Claim
65 words
A device as claimed in claim 1 wherein said agitator members each comprise a hollow pipe journaled in said bin witH a spiral vane extending from end to end along the outer surface thereof. A device as claimed in claim 2 wherein said hollow pipe has a second smaller hollow pipe mounted coaxially therein and rigidly secured thereto to reenforce said first named hollow pipe.
Claim 4
Dependent Claim
36 words
A device as claimed in claim 1 wherein said agitator members extend completely across said bin in the direction of their axes and are spaced inwardly from the sides of said bin parallel to their axes.
Claim 5
Dependent Claim
49 words
A device as claimed in claim 1 wherein said agitator members extend completely across said bin in the direction of their axes generally parallel to the axes of said screw feed members and spaced inwardly from the sides of said bin parallel to the axes of said agitator members.
Claim 6
Dependent Claim
40 words
A device as claimed in claim 1 wherein triangular ribs are secured to said bottom wall extending parallel to the axes of said screw feed members between adjacent members and form a plurality of troughs for said screw feed members.
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) | 1974-08-30 | 1975-03-01 | 1975-08-31 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-08-30 | 1979-03-01 | 1979-08-31 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-08-30 | 1983-03-01 | 1983-08-31 | $7700.00 | Window Closed / Lapsed |