Patent US2810225A successfully refreshed from Google Patents.
Patent US4108301A successfully refreshed from Google Patents.
US4108301A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Multiple point feeder
Assignee: Foster Wheeler Energy Corp
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Filing: 1976-11-12
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Granted: 1978-08-22
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Expires: 1996-11-12
Abstract
Abstract A material handling system for distributing granular solids from a single source to a plurality of distribution points in which a plurality of selectively adjustable leveling bars control the thickness of a layer of material on a conveyor, and a plurality of arcuate-shaped guide chutes divert the material from the conveyor to the plurality of distribution points. The guide chutes are positioned longitudinally along the sides of the conveyor and their lateral positions are selectively adjustable relative thereto. The cooperative relationship among the height of the leveling bars, the lateral position of the guide chutes, and the speed of the conveyor determines the amount of material diverted from the conveyor to the individual distribution points. According to an alternate arrangement a constant thickness of the material layer is maintained and the selective position of the guide chutes is used to control the amount of material diverted.
Inventors
- 👤 Norman Kenneth Trozzi
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 01:53
CPC Classifications
B; B65; B65G; B65G47/00; B65G47/52; B65G47/72
Claims Analysis
Total Claims: 7
Claim 1
Independent Claim
173 words
A material handling system for distributing granular solids from a single source to a multiplicity of points, comprising: a conveyor for transporting the material from a feed source; a plurality of pairs of arcuate-shaped deflectors, each pair of deflectors being spaced longitudinally along and adjacent the sides of said conveyor for diverting quantities of material toward the sides of said conveyor; a hopper disposed adjacent to each of said deflectors for receiving the diverted quantity of material; and a plurality of leveling bars positioned above said conveyor for controlling the thickness of the layer of material on said conveyor, said leveling bars being alternately spaced in the longitudinal direction with respect to said pairs of deflectors to redistribute on the conveyor the material remaining downstream of each pair of said deflectors to provide a layer of material of uniform thickness, whereby the cooperative relationships among the vertical positions of the leveling bars and the lateral positions of the deflectors accurately control the precise amounts of material diverted from the conveyor to said hoppers.
Claim 2
Dependent Claim
173 words
A material handling system for distributing granular solids from a single source to a multiplicity of points, comprising: a conveyor for transporting the material from a feed source; a plurality of pairs of arcuate-shaped deflectors, each pair of deflectors being spaced longitudinally along and adjacent the sides of said conveyor for diverting quantities of material toward the sides of said conveyor; a hopper disposed adjacent to each of said deflectors for receiving the diverted quantity of material; and a plurality of leveling bars positioned above said conveyor for controlling the thickness of the layer of material on said conveyor, said leveling bars being alternately spaced in the longitudinal direction with respect to said pairs of deflectors to redistribute on the conveyor the material remaining downstream of each pair of said deflectors to provide a layer of material of uniform thickness, whereby the cooperative relationships among the vertical positions of the leveling bars and the lateral positions of the deflectors accurately control the precise amounts of material diverted from the conveyor to said hoppers.
Claim 3
Dependent Claim
36 words
The material handling system of claim 1, wherein the position of each of said deflectors is selectively adjustable relative to the sides of said conveyor, and said system further includes means for adjustably positioning said deflectors.
Claim 4
Dependent Claim
50 words
The material handling system of claim 1 wherein each of said longitudinally positioned leveling bars is positioned successively closer vertically to said conveyor to provide a uniform layer of material of different thickness at different longitudinal positions along the conveyor, the layer of material extending the width of the conveyor.
Claim 5
Dependent Claim
36 words
The material handling system of claim 3, wherein the vertical position of each of said leveling bars is selectively adjustable relative to said conveyor, and said system further includes means for adjustably positioning said leveling bars.
Claim 6
Dependent Claim
37 words
The material handling system of claim 4, wherein the longitudinal speed of said conveyor is selectively adjustable to vary the feed rate of material, and said system further includes means for adjusting the speed of said conveyor.
Claim 7
Dependent Claim
48 words
The material handling system of claim 1, wherein each successive pair of deflectors is spaced laterally inwardly relative to the sides of said conveyor in the direction of movement of said material so that a substantially equal amount of material is diverted by each deflector to said hopper.
References Cited (Backward Citations)
US1982824A
Cited
US2343722A
Cited
US2521998A
Cited
US2758700A
Cited
US3062355A
Cited
US3430751A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1981-08-21 | 1982-02-20 | 1982-08-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1985-08-21 | 1986-02-20 | 1986-08-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1989-08-21 | 1990-02-20 | 1990-08-22 | $7700.00 | Window Closed / Lapsed |