System for applying herbicides to flora infestations within sewer lines
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United States of America Patent
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-
Nov 8, 1994
Grant Date -
N/A
app pub date -
Jul 27, 1992
filing date -
Jul 27, 1992
priority date (Note) -
In Force
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Abstract
A method and apparatus for applying herbicide to the interior of sewer lines. The invention includes a heating assembly which is capable of raising the temperature of the herbicide such that it enters a gaseous state. This gaseous herbicide is then forced through flexible tubing and into the sewer line where it attacks flora infestations therein. A highly saturated atmosphere is maintained within the sewer line by a pair of inflatable inner-tube type devices which entrap the gaseous herbicide within the area of sewer line to be treated.
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Cited Art Landscape
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