Apparatus for grading shrimp

Details Apparatus for grading shrimp Apparatus for grading shrimp

1990-04-23

1991-11-12

Smith, James G.

Butchering

Crustacean

Shrimp processing

452 1, 452184, 452177, A22C 2900

Patent

active

050644009

ABSTRACT:
A shrimp grading mechanism is provided which incorporates a shrimp conveyer and orienter for conveying shrimp oriented in head-up, body-down position along a linear path. The conveyor incorporates a plurality of pan segments which collectively form a movable trough having a slot at the bottom portion thereof. Shrimp smaller than a preselected size range will fall through the slot while shrimp of the preselected size range will be gripped at the juncture of the heads and body and supported by the opposed pan segments of the conveyor. The conveyor pans engage the shrimp in a pivot-like manner thereby permitting the heavier body portions of the shrimp to pivot downwardly such that each of the shrimp is positioned in head-up, body-down relation while being conveyed to the end of the conveyor. Several shrimp grading machines may be placed in cascading relation with succeeding machines being adjusted for smaller size ranges of shrimp falling from the conveyor of the immediately preceding shrimp grading machine.

REFERENCES:
patent: 2663897 (1953-12-01), Greiner et al.
patent: 2888709 (1959-06-01), Lapeyre
patent: 2958896 (1960-11-01), Merrick
patent: 3691592 (1972-09-01), Ward
patent: 3696466 (1972-10-01), Letchworth
patent: 3750233 (1973-08-01), Lovett
patent: 4016625 (1977-04-01), Mitchell
patent: 4692965 (1987-09-01), Stephenson
patent: 4916776 (1990-04-01), Allain
patent: 4934028 (1990-06-01), Stipe
patent: 4941233 (1990-07-01), Allain

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