Patent US3765490A successfully refreshed from Google Patents.
US3765490A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Combined loader bucket and fines separator
Assignee: Individual
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Filing: 1972-06-29
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Granted: 1973-10-16
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Expires: 1992-06-29
Abstract
Abstract A loader bucket or scoop is adapted to separate fines after scooping material into the bucket by providing a movable grid to be positioned over the open side. The grid is substantially the same shape as the bucket or scoop and is positionable therein in an out-of-the-way position for loading of the scoop. A power means comprising a hydraulic motor and worm gear and pinion combinations serve to relatively move the grid between the operative position and the inoperative position. The grid is contiguous with the inside surface of the scoop and when the scoop and grid are cylindrical the grid moves in an arc and 360* movement may be accommodated. A scraping edge is provided on the grid for removing stuck material on the inside surface of the scoop and the grid may be formed of steel reinforcing rods; the cross rods also serving as scrapers and agitating the innermost portion of the load prior to dumping.
Inventors
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Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 08:46
CPC Classifications
E; E02; E02F; E02F3/00; E02F3/04; E02F3/28; E02F3/36; E02F3/40; E02F3/401; E02F7/00; E02F7/06
Claims Analysis
Total Claims: 13
Claim 1
Independent Claim
124 words
A combined loader bucket and fines separator comprising a scoop having an open side to receive and dump the load, a cutting edge along said side to engage the material for loading, a movable grid for positioning over said open side in an operative position to allow passage of fines during dumping of the load, said grid being substantially the same shape as said scoop and positionable therein in an inoperative position, and power means for relatively moving said grid between the operative position outside the scoop and the inoperative position within said scoop, whereby said grid is stowed out of the way in the inoperative position and the innermost portion of the load is agitated by movement of said grid prior to dumping.
Claim 2
Dependent Claim
124 words
A combined loader bucket and fines separator comprising a scoop having an open side to receive and dump the load, a cutting edge along said side to engage the material for loading, a movable grid for positioning over said open side in an operative position to allow passage of fines during dumping of the load, said grid being substantially the same shape as said scoop and positionable therein in an inoperative position, and power means for relatively moving said grid between the operative position outside the scoop and the inoperative position within said scoop, whereby said grid is stowed out of the way in the inoperative position and the innermost portion of the load is agitated by movement of said grid prior to dumping.
Claim 3
Dependent Claim
46 words
The combined bucket and fines separator of claim 1 wherein said grid is contiguous with and substantially conforms to the internal surface of said scoop when positioned therein, whereby the load presses the grid against said surface for enhancing the conforming relationship during each loading cycle.
Claim 4
Dependent Claim
29 words
The combined bucket and fines separator of claim 1 wherein said scoop is substantially cylindrical with a portion of the curved wall being removed to form said open side.
Claim 5
Dependent Claim
82 words
The combined bucket and fines separator of claim 3 wherein said grid is also substantially cylindrical with a portion removed and is contiguous with and substantially conforms to the internal surface of said scoop when positioned therein, pivot mounting means for said grid on the ends of scoop, whereby said grid moves in an arc and the load presses the grid against said surface for enhancing the conforming relationship during each loading cycle to form a more perfect cylinder of the grid.
Claim 6
Dependent Claim
27 words
The combined bucket and fines separator of claim 4 wherein said scoop and said grid are coaxial whereby movement of said grid through 360* may be accommodated.
Claim 7
Dependent Claim
34 words
The combined bucket and fines separator of claim 2 wherein said grid includes a scraping edge along the open side thereof to remove any material stuck to the inside surface during the relative movement.
Claim 8
Dependent Claim
33 words
The combined bucket and fines separator of claim 1 wherein is provided a frame for said grid including closed end segments and cross members spanning between said segments and defining said open side.
Claim 9
Dependent Claim
34 words
The combined bucket and fines separator of claim 7 wherein said cross members include a scraping edge directed in the direction of movement to scrape material stuck to the internal surface of said scoop.
Claim 10
Dependent Claim
86 words
The combined bucket and fines separator of claim 1 wherein said scoop and grid are substantially cylindrical with corresponding open sides, said grid includinG cross elements and circumferential elements, said cross elements being contiguous with and substantially conforming to the internal surface of said scoop when positioned therein, whereby the load presses the grid against said surface for enhancing the conforming relationship during each loading cycle, and said cross elements serving as scrapers to remove any material stuck to the inside surface during the relative movement.
Claim 11
Dependent Claim
24 words
The combined bucket and fines separator of claim 9 wherein said elements are steel reinforcing rods to add strength and rigidity to said grid.
Claim 12
Dependent Claim
56 words
The combined bucket and fines separator of claim 9 wherein the open side of said scoop is formed with the cutting edge and the opposed edge at the top of said scoop at an acute angle to the cylinder of said scoop and said grid whereby said grid is guided in its movement into said scoop.
Claim 13
Dependent Claim
58 words
The combined bucket and fines separator of claim 9 wherein said grid is mounted on pivot stub shafts on the ends of said scoop and said power means includes a drive pinion on each shaft, a worm mated with each pinion and hydraulic motor means for driving said worms, whereby said grid is power driven from both ends.
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) | 1976-10-15 | 1977-04-16 | 1977-10-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-10-15 | 1981-04-16 | 1981-10-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-10-15 | 1985-04-16 | 1985-10-16 | $7700.00 | Window Closed / Lapsed |