Patent US3734289A successfully refreshed from Google Patents.
US3734289A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Apparatus for separating products
Assignee: Individual
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Filing: 1971-08-24
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Granted: 1973-05-22
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Expires: 1991-08-24
Abstract
Abstract Apparatus for separating light from heavier products lying on a shaking table wherein a vacuum pressure is applied to draw off the light products, the table including an air shelf disposed beneath a perforated table bed at the end thereof at which the light products are concentrated during vibration of the table, thereby insuring a complete separation at said end of the light from the heavier products whereby said light products may be conveniently drawn off from said table bed.
Inventors
- 👤 L Pearman
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 08:35
CPC Classifications
B; B07; B07B; B07B11/00; B07B11/06; B03; B03B; B03B4/00; B03B4/02; B07B13/00; B07B13/10
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
267 words
An apparatus for separating light from heavy products, comprising, a shaking table enclosed by means of a cover, a product inlet end on the apparatus for introducing products to be separated thereinto, said Shaking table including a perforated horizontal table bed plate on top of which the products to be separated are disposed, a first discharge opening at one end of said table bed plate for discharging the light products from the apparatus after separation, a second discharge opening at the end of said table bed plate opposite said one end for discharging the heavier products from the apparatus after separation, means on said cover for creating a vacuum pressure so as to draw air upwardly through the perforations of said bed plate, means for vibrating said bed plate so as to cause the heavier product to be moved toward said second discharge opening, a vertically disposed discharge plate mounted at said bed plate one end for concentrating the light products at that end, means at said bed plate one end adjacent said discharge plate for impeding the upward flow of air adjacent said discharge plate and reducing the air velocity and causing a swirling air flow in the vicinity of said means whereby the light products are separated and moved upwardly from said heavy products by the upwardly moving air, the heavy products are made to move in contact with said table bed plate toward the second discharge opening by said vibrating means, and the light products are discharged over the top of said discharge plate and into first discharge opening by said swirling air flow.
Claim 2
Independent Claim
267 words
An apparatus for separating light from heavy products, comprising, a shaking table enclosed by means of a cover, a product inlet end on the apparatus for introducing products to be separated thereinto, said Shaking table including a perforated horizontal table bed plate on top of which the products to be separated are disposed, a first discharge opening at one end of said table bed plate for discharging the light products from the apparatus after separation, a second discharge opening at the end of said table bed plate opposite said one end for discharging the heavier products from the apparatus after separation, means on said cover for creating a vacuum pressure so as to draw air upwardly through the perforations of said bed plate, means for vibrating said bed plate so as to cause the heavier product to be moved toward said second discharge opening, a vertically disposed discharge plate mounted at said bed plate one end for concentrating the light products at that end, means at said bed plate one end adjacent said discharge plate for impeding the upward flow of air adjacent said discharge plate and reducing the air velocity and causing a swirling air flow in the vicinity of said means whereby the light products are separated and moved upwardly from said heavy products by the upwardly moving air, the heavy products are made to move in contact with said table bed plate toward the second discharge opening by said vibrating means, and the light products are discharged over the top of said discharge plate and into first discharge opening by said swirling air flow.
Claim 3
Dependent Claim
36 words
The apparatus according to claim 1 wherein said air flow impeding means comprises an air flow plate mounted to the underside of said bed plate and extending a slight distance toward said table bed opposite end.
Claim 4
Dependent Claim
83 words
The apparatus according to claim 2 wherein said discharge plate is of a predetermined width having wider opposite ends sloping inwardly toward said predetermined width whereby the light products will be accordingly more concentrated at said table bed plate one end near said discharge plate wider ends, thereby further assuring that the heavier products, normally concentrated near said wider ends, will be moved toward said second discharge opening before the light products are discharged over the top of said discharge plate wider ends.
Claim 5
Dependent Claim
48 words
The apparatus according to claim 3 wherein said discharge plate is mounted by means of an upstanding plate disposed rearwardly thereof, said discharge plate having vertically elongated openings to facilitate mounting, whereby said discharge plate may be adjusted vertically depending on the amount of products to be separated.
Claim 6
Dependent Claim
41 words
The apparatus according to claim 4 wherein a control flap is provided near said second discharge opening and is mounted for movement toward and away from said bed plate for regulating the amount of heavier-product flow into said second discharge opening.
References Cited (Backward Citations)
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1976-05-21 | 1976-11-20 | 1977-05-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-05-21 | 1980-11-20 | 1981-05-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-05-21 | 1984-11-20 | 1985-05-22 | $7700.00 | Window Closed / Lapsed |