Procedure for shelling of crustaceous shellfish, especially shrimps, and apparatus for performance of the procedure
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United States of America Patent
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May 12, 1992
Grant Date -
N/A
app pub date -
Aug 9, 1990
filing date -
May 13, 1988
priority date (Note) -
Expired
status (Latency Note)
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Abstract
An apparatus for shelling shellfish such as shrimps consists of a dosing chamber (3) and a heat treatment chamber (5) separated by a slide valve (11) and sealed by cylindrical membrane valves (7, 9). From a funnel (31) the shellfish fall down into the dosing chamber (3) whose valve (7) is closed. The slide valve (11) is opened and a portion of animals fall down into the heat treatment chamber (5), whose bottom is closed by another membrane valve (9). The slide valve (11) is closed and steam at high pressure and temperature is induced into the heat treatment chamber (5). The pressure is removed from the membrane valve (9) after which the standing overpressure in the chamber (5) blows the shellfish out of the discharge opening (19) towards a rebound plate (35). Hereby the meat and shells of the shellfish are separated.
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