Multi-component foam dispenser with improved flow metering means
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United States of America Patent
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-
Jan 31, 2006
Issued Date -
N/A
app pub date -
Dec 13, 2002
filing date -
Nov 6, 2000
priority date (Note) -
In Force
status (Latency Note)
Importance
Abstract
An improved metering apparatus is provided for use with a foam dispenser that disperses beads of foam after mixing streams of two foam components together. The dispenser has a pair of seal passages formed in a body portion of the dispenser and a spool valve rotated mounted in the body portion. The spool valve has a pair of flow passages formed in it that can be rotated into mating alignment with the seal passages formed in the dispenser body. The spool valve flow passages have circular cross-sections while the seal passages have non-circular cross-sections, and preferably triangular cross-sections.
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Family
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Cited Art Landscape
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