US3621976A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Apparatus for transfer of flowable material from a hopper
Assignee: Individual
•
Filing: 1969-12-04
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Granted: 1971-11-23
•
Expires: 1989-12-04
Abstract
Abstract Apparatus for transferring or feeding flowable material to a desired location from a container such as a hopper. A pair of shelf members are disposed below the hopper. The shelves are substantially horizontal and arranged one above the other. A pair of spaced-apart chains or other continuous flexible members have crossmembers therebetween. The crossmembers move over the upper shelf in a direction away from the desired location, and then move over the lower shelf in a direction toward the desired location. The upper shelf is shorter in length than the lower shelf so that material moved upon the upper shelf falls therefrom to the lower shelf and is moved by the crossmembers on the lower shelf to the desired location.
Inventors
- 👤 Jesse C Moore
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 01:15
CPC Classifications
B; B65; B65G; B65G65/00; B65G65/30; B65G65/34; B65G65/40; B65G65/42
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
435 words
Apparatus for transfer of flowable mold material comprising: a hopper for containing flowable mold material, the hopper having an opening therein at the bottom portion thereof for movement of flowable material therefrom, limited capacity flowable mold material receiver means spaced from the hopper, an imperforate first shelf disposed below the opening in the hopper in closely spaced relationship thereto, the imperforate first shelf being larger than the opening in the hopper and substantially closing the opening in the hopper, the imperforate first shelf having a portion adjacent the receiver means, an imperforate second shelf, the imperforate second shelf being larger than the first shelf and disposed below all of the first shelf and in spaced relationship with respect thereto, the imperforate second shelf having a portion within the receiver means, an endless movable conveyor member, the conveyor member having a plurality of openings therethrough, the conveyor member having an upper portion above the imperforate first shelf and in juxtaposition with respect thereto, the conveyor member having a lower portion above the imperforate second shelf and in juxtaposition with respect thereto, means positioning the conveyor member adjacent the receiver means so that a portion of the conveyor member is positioned within the receiver means to effect return of excess mold material toward said hopper, the conveyor member having the upper portion thereof moving in a direction away from the mold material receiver means so that material is moved from the hopper by the upper portion of the conveyor member and along the imperforate first shelf, the mold material being moved from the first shelf by the upper portion of the conveyor member and falling through the openings in the upper portion of the conveyor member to the imperforate second shelf, the lower portion of the conveyor member moving toward the mold material receiver means so that the mold material which falls upon the second shelf from the first shelf is moved by the lower portion of the conveyor member upon the second shelf to the flowable mold material receiver means, with continued movement of the conveyor member there being a quantity of mold material moved to the receiver means in excess of that required for filling the receiver means, there thus being assurance of a sufficient quantity of mold material to fill the mold material receiver means, the portion of the conveyor member within the mold material receiver means moving upwardly from the second shelf and then along the first shelf and carrying excess mold material in a direction from the mold material receiver means toward the hopper when the mold material receiver means is filled.
Claim 2
Dependent Claim
435 words
Apparatus for transfer of flowable mold material comprising: a hopper for containing flowable mold material, the hopper having an opening therein at the bottom portion thereof for movement of flowable material therefrom, limited capacity flowable mold material receiver means spaced from the hopper, an imperforate first shelf disposed below the opening in the hopper in closely spaced relationship thereto, the imperforate first shelf being larger than the opening in the hopper and substantially closing the opening in the hopper, the imperforate first shelf having a portion adjacent the receiver means, an imperforate second shelf, the imperforate second shelf being larger than the first shelf and disposed below all of the first shelf and in spaced relationship with respect thereto, the imperforate second shelf having a portion within the receiver means, an endless movable conveyor member, the conveyor member having a plurality of openings therethrough, the conveyor member having an upper portion above the imperforate first shelf and in juxtaposition with respect thereto, the conveyor member having a lower portion above the imperforate second shelf and in juxtaposition with respect thereto, means positioning the conveyor member adjacent the receiver means so that a portion of the conveyor member is positioned within the receiver means to effect return of excess mold material toward said hopper, the conveyor member having the upper portion thereof moving in a direction away from the mold material receiver means so that material is moved from the hopper by the upper portion of the conveyor member and along the imperforate first shelf, the mold material being moved from the first shelf by the upper portion of the conveyor member and falling through the openings in the upper portion of the conveyor member to the imperforate second shelf, the lower portion of the conveyor member moving toward the mold material receiver means so that the mold material which falls upon the second shelf from the first shelf is moved by the lower portion of the conveyor member upon the second shelf to the flowable mold material receiver means, with continued movement of the conveyor member there being a quantity of mold material moved to the receiver means in excess of that required for filling the receiver means, there thus being assurance of a sufficient quantity of mold material to fill the mold material receiver means, the portion of the conveyor member within the mold material receiver means moving upwardly from the second shelf and then along the first shelf and carrying excess mold material in a direction from the mold material receiver means toward the hopper when the mold material receiver means is filled.
References Cited (Backward Citations)
US411439A
Cited
US2156878A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1974-11-22 | 1975-05-24 | 1975-11-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-11-22 | 1979-05-24 | 1979-11-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-11-22 | 1983-05-24 | 1983-11-23 | $7700.00 | Window Closed / Lapsed |