US3642153A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Rotary plow feeder
Assignee: Hewitt Robins Inc
•
Filing: 1970-04-24
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Granted: 1972-02-15
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Expires: 1990-04-24
Abstract
Abstract A discharge system for transferring bulk material from cargo holds onto a discharge conveyor of a self-unloading vessel comprises inclined storage shelves, which extend beneath and receive bulk material from the cargo holds, and inclined rotary plow feeders which traverse the length of the shelves to reclaim bulk material from the shelves and deposit the material onto the discharge conveyor. The rotary plow feeders are each driven by a first drive system about a central axis of rotation to reclaim material from the inclined shelves and the feeders are each provided with a second drive system for pivoting the hub of the feeder about an eccentric axis to commence, adjust, or terminate the feed of material from the shelves to the conveyor. With the rotary plow feeders in their retracted positions the feeders can be relocated along the shelves, as desired, even with material on the shelves. The hub of each feeder includes a ring gear normally driven about its central axis by an internal pinion gear for reclaiming and an annular ring gear housing that is pivoted about an eccentric axis of the feeder, coinciding with the axis of the pinion, to adjust the depth that the feeder blades extend into the bulk material on the shelves.
Inventors
- 👤 Imre Adler
- 👤 Louis Felts
- 👤 Nicholas S Klucheff
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 22:41
CPC Classifications
B; B65; B65G; B65G65/00; B65G65/30; B65G65/34; B65G65/40; B65G65/48; B65G65/4809; B65G65/4836; B65G65/4854
Claims Analysis
Total Claims: 18
Claim 1
Independent Claim
124 words
A rotary plow feeder assembly for reclaiming material from storage shelf comprising: rotary plow means, said rotary plow means having hub means, and said rotary plow means having blade means carried by said hub means; said hub means having ring gear means adapted to be rotated by drive means to effect rotation of said rotary plow means about a first axis of rotation for reclaiming, and said hub means having ring gear housing means for rotatably carrying said ring gear means; and drive means for rotating said ring gear means about said first axis and for pivoting said ring gear housing means about a second axis offset with respect to said first axis to adjust said rotary plow means relative to a storage shelf.
Claim 2
Dependent Claim
31 words
In the rotary plow feeder of claim 1: said drive means including pinion gear means meshing with said ring gear means to drive said ring gear means about said first axis.
Claim 3
Dependent Claim
22 words
In the rotary plow feeder of claim 2: said pinion gear means having an axis of rotation coinciding with said second axis.
Claim 4
Dependent Claim
19 words
In the rotary plow feeder of claim 3: said pinion gear means being positioned within said ring gear means.
Claim 5
Dependent Claim
23 words
In the rotary plow feeder of claim 3: said first axis of rotation coinciding with the central axis of said rotary plow means.
Claim 6
Dependent Claim
32 words
In the rotary plow feeder of claim 1: said ring gear housing means being annular, and said ring gear housing means and said ring gear being concentric with respect to each other.
Claim 7
Dependent Claim
28 words
In the rotary plow feeder of claim 6: said ring gear housing means being intermediate said ring gear and an annular blade-carrying member affixed to said ring gear.
Claim 8
Dependent Claim
27 words
In the rotary plow feeder of claim 1: said drive means including means for locking said ring gear housing means against pivotal movement about said second axis.
Claim 9
Dependent Claim
137 words
A reclaiming system comprising: shelf means for holding bulk material; a rotary plow feeder assembly for reclaiming material from said shelf means; said rotary plow feeder assembly including rotary plow means, said rotary plow means having hub means, said rotary plow means having blade means carried by said hub means; said hub means having ring gear means adapted to be rotated by drive means to effect rotation of said rotary plow means about a first axis of rotation for reclaiming, and said hub means having ring gear housing means for rotatably carrying said ring gear means; and drive means for rotating said ring gear means about said first axis and for pivoting said ring gear means about a second axis offset with respect to said first axis to adjust said rotary plow means relative to said shelf.
Claim 10
Dependent Claim
25 words
In the reclaiming system of claim 9: said shelf being inclined, and said first and second axes extending substantially perpendicular with respect to said shelf.
Claim 11
Dependent Claim
21 words
In the reclaiming system of claim 10: means for effecting movement of said rotary plow feeder assembly along said inclined shelf.
Claim 12
Dependent Claim
30 words
In the reclaiming system of claim 10: said drive means including pinion gear means meshing with said ring gear means to drive said ring gear means about said first axis.
Claim 13
Dependent Claim
21 words
In the reclaiming system of claim 12: said pinion gear means having an axis of rotation coinciding with said second axis.
Claim 14
Dependent Claim
18 words
In the reclaiming system of claim 13: said pinion gear means being positioned within said ring gear means.
Claim 15
Dependent Claim
22 words
In the reclaiming system of claim 14: said first axis of rotation coinciding with the central axis of said rotary plow means.
Claim 16
Dependent Claim
31 words
In the reclaiming system of claim 15: said ring gear housing means being annular; and said ring gear housing means and said ring gear being concentric with respect to each other.
Claim 17
Dependent Claim
27 words
In the reclaiming system of claim 16: said ring gear housing means being intermediate said ring gear and an annular blade-carrying member affixed to said ring gear.
Claim 18
Dependent Claim
26 words
In the reclaiming system of claim 17: said drive means including means for locking said ring gear housing means against pivotal movement about said second axis.
References Cited (Backward Citations)
US2892552A
Cited
US3455467A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1975-02-14 | 1975-08-16 | 1976-02-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-02-14 | 1979-08-16 | 1980-02-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-02-14 | 1983-08-16 | 1984-02-15 | $7700.00 | Window Closed / Lapsed |