Fumigant fluid

Details Fumigant fluid Fumigant fluid

1993-11-05

1995-03-07

Bradley, P. Austin

Fishing, trapping, and vermin destroying

Vermin destroying

A01M 1300

Patent

active

053946430

ABSTRACT:
A process for the destruction of nest-building, tunnel digging, and other ground animal pests, includes the step of providing a container containing carbon dioxide, wherein the carbon dioxide is in a liquid form under high pressure. Very cold carbon dioxide gas from the container is introduced into the nest, tunnel or ground via a conduit, thereby to form carbon dioxide snow in the nest, tunnel or ground. The carbon dioxide snow is permitted to sublimate slowly over time, thereby to form carbon dioxide gas in situ and at low pressure in the nest, tunnel or ground at a depth below that of the air in the immediate vicinity of the pests so that the carbon dioxide drives such air upwardly at least partially from such depth into other areas of the nests, tunnels or the atmosphere above the ground so that substantially all of the pests rapidly suffocate.

REFERENCES:
patent: 3876372 (1975-04-01), Van Uchelen et al.
patent: 4597217 (1986-07-01), Narita
patent: 4637161 (1987-01-01), Turner
patent: 4768306 (1988-09-01), Hilbun
patent: 4829706 (1989-05-01), Perry
patent: 4833818 (1989-05-01), Berta
patent: 4889708 (1989-12-01), Latif et al.
patent: 5027546 (1991-07-01), Tallon

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