Fumigating apparatus for shipping containers

Chemical apparatus and process disinfecting – deodorizing – preser – Physical type apparatus – Apparatus for treating solid article or material with fluid...

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239 57, 239 60, 383 7, 383 24, 383 37, 383 38, 383 71, 383102, 422 28, 422 32, 422300, 422302, 422305, A61L 220

Patent

active

050552775

ABSTRACT:
Large shipping containers used to hold bulk-packaged commodies, such as hay, can be efficiently fumigated of pests and vermin by means of an apparatus which includes a long, flexible chain or string of gas-permeable, solid fumigant holders, and a long, rigid pole or thrusting member. The holders are joined at predetermined intervals within the string by means of pre-cut lengths of rope or cord and the pole is attached to a distal-most one of the holders and used to thrust the string of holders into the container through its open end and into the headspace above the commodity to be fumigated. The pole is then detached from the string and removed from the container to leave the string in place. The container, is closed, and fumigation is accomplished by permitting the solid fumigant to react with ambient moisture within the container for the static time necessary to produce its toxic gas. After fumigation is complete, the string of holders may be emptied of residue and washed for reuse.

REFERENCES:
patent: 2040559 (1936-05-01), Luttrell
patent: 2565394 (1951-08-01), Ryan
patent: 2633452 (1953-03-01), Hogaboom et al.
patent: 3377121 (1968-04-01), Billesbach et al.
patent: 3387641 (1968-06-01), Osborne
patent: 3422985 (1969-01-01), Rinehart
patent: 4059048 (1977-11-01), Dickson
patent: 4388739 (1983-06-01), Martimon et al.
patent: 4521045 (1985-06-01), Hart
patent: 4641573 (1987-02-01), Gunn
patent: 4756117 (1988-07-01), Friemel

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