Aquaculture harvester for shallow water use

Details Aquaculture harvester for shallow water use Aquaculture harvester for shallow water use

1988-01-27

1989-03-21

Mancene, Gene

Animal husbandry

Entomological culture device

Egg treatment, production, or storage

37 55, A01K 6100

Patent

active

048133779

ABSTRACT:
As the harvester is propelled forward through a body of shallow water, the water moves over the bottom of the harvester in roughly laminar flow (depth can be up to top of sides) and contacts apex of the vee gutter, and is deflected outward causing an increase in velocity to the constriction points where the ends of the vee gutter legs and curved corner plates coincide in a vertical plane. The lowered static pressure due to increased velocity at trailing edges of vee gutter legs propels the stream upward into a stagnated area behind the apex forming a vortex of counter-clockwise flow to port and clockwise flow to starboard which casts any entrained product such as crayfish into the stagnation area, thereby trapping and preventing any damage to the creatures.

REFERENCES:
patent: 734571 (1903-07-01), Knapp
patent: 3561150 (1971-02-01), Silchenstedt
patent: 3973575 (1976-08-01), Sullivan et al.
patent: 4112602 (1978-09-01), Kato et al.
patent: 4276710 (1981-07-01), Yunker et al.
patent: 4328629 (1982-05-01), Bruce, Jr. et al.

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