Air valve combining typed polyurethane foam ejection device for tire
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United States of America Patent
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Nov 17, 2020
Grant Date -
Nov 30, 2017
app pub date -
Apr 7, 2017
filing date -
May 24, 2016
priority date (Note) -
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Abstract
An embodiment of the present invention provides an air injection valve-integrated spray for spraying and applying polyurethane foam to a desired portion of a tire. The spray includes a polyurethane foam chamber disposed at an end of a coupling portion and keeping polyurethane foam under pressure and an air delivery chamber delivering air injected from an air injection valve to a breaking portion of the polyurethane foam chamber, in which the breaking portion of the polyurethane foam chamber is broken by air coming out of the air delivery chamber, so the polyurethane foam is sprayed.
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