US3795305A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Bucket conveyor system
Assignee: UNIVERSAL IND
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Filing: 1973-01-22
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Granted: 1974-03-05
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Expires: 1993-01-22
Abstract
Abstract A bucket conveyor system comprising a support housing having a plurality of sprockets rotatably mounted therein having first and second chains looped therearound. A plurality of tiltable buckets are supported by the chains and are adapted to be moved between an inlet portion of the housing to a discharge portion of the housing. Each of the buckets has a pair of support arms extending from the upper center portion thereof which are secured to the chains. A large control wheel is secured to each of the buckets at the lower center portion thereof for engagement with a track provided in the support housing to control the attitude of the bucket. The control wheels of adjacent buckets are positioned on opposite ends of the respective buckets. Means is also provided on the support housing for dumping the buckets at the discharge portion of the housing.
Inventors
- 👤 L Sandvik
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 01:26
CPC Classifications
B; B65; B65G; B65G17/00; B65G17/30; B65G17/48; B65G17/12; B65G17/126; B65G2201/00; B65G2201/04
Claims Analysis
Total Claims: 12
Claim 1
Independent Claim
140 words
A bucket conveyor system comprising, a support means, a plurality of sprockets rotatably mounted on said support means, first and second chains looped around said sprockets, a plurality of tiltable buckets supported by said first and second chains, each of said buckets comprising a top and a bottom and opposite ends, first means tiltably connecting one end of said bucket at the top center thereof to said first chain, second means tiltably connecting the other end of said bucket at the top center thereof to said second chain and a control wheel operatively rotatably secured to the center bottom of said bucket at least at one end thereof so as to be positioned outwardly of said one end, and control wheel guide means on said support means for controlling the attitude of said buckets along the path of travel Thereof.
Claim 2
Dependent Claim
140 words
A bucket conveyor system comprising, a support means, a plurality of sprockets rotatably mounted on said support means, first and second chains looped around said sprockets, a plurality of tiltable buckets supported by said first and second chains, each of said buckets comprising a top and a bottom and opposite ends, first means tiltably connecting one end of said bucket at the top center thereof to said first chain, second means tiltably connecting the other end of said bucket at the top center thereof to said second chain and a control wheel operatively rotatably secured to the center bottom of said bucket at least at one end thereof so as to be positioned outwardly of said one end, and control wheel guide means on said support means for controlling the attitude of said buckets along the path of travel Thereof.
Claim 3
Dependent Claim
24 words
The bucket conveyor of claim 1 wherein said control wheel has a diameter which is substantially equal to the top width of said bucket.
Claim 4
Dependent Claim
22 words
The bucket conveyor of claim 1 wherein said control wheel has a diameter which is greater than the depth of said bucket.
Claim 5
Dependent Claim
33 words
The bucket conveyor of claim 1 wherein only a single control wheel is secured to each of said buckets, the control wheels of adjacent buckets being positioned on opposite ends of said buckets.
Claim 6
Dependent Claim
34 words
The bucket conveyor of claim 1 wherein each of said control wheels has a diameter which is approximately 4.75 inches and wherein each of said buckets has a top width of approximately 5.50 inches.
Claim 7
Dependent Claim
43 words
The bucket conveyor of claim 1 wherein each of said buckets has leading and trailing upper edges, first and second inclined lips extending outwardly from the leading and trailing edges respectively, said first and second inclined lips being disposed in substantially parallel planes.
Claim 8
Dependent Claim
29 words
The bucket conveyor of claim 6 wherein said first lip extends downwardly and outwardly from said leading edge, said second lip extending upwardly and outwardly from said trailing edge.
Claim 9
Dependent Claim
23 words
The bucket conveyor of claim 7 wherein said first lip extends downwardly at an angle of approximately 26* with respect to the horizontal.
Claim 10
Dependent Claim
73 words
The bucket conveyor of claim 1 wherein said guide means comprises means for dumping said buckets at a predetermined location on said support means, said means comprises a horizontally rotatable shaft disposed transversely to the direction of travel of said chains, a plurality of spaced apart radially extending fins extending from said shaft adapted to engage the bottoms of said buckets to move the buckets from a conveying position to a dumping position.
Claim 11
Dependent Claim
28 words
The bucket conveyor of claim 9 wherein said shaft is fully rotatable, said shaft being rotated by the engagement of said fins with the bottoms of said buckets.
Claim 12
Dependent Claim
20 words
The bucket conveyor of claim 10 wherein said fins have outer end portions which are comprised of a resilient material.
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) | 1977-03-04 | 1977-09-03 | 1978-03-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-03-04 | 1981-09-03 | 1982-03-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-03-04 | 1985-09-03 | 1986-03-05 | $7700.00 | Window Closed / Lapsed |