Multi-component foam dispenser with improved flow metering...

Details Multi-component foam dispenser with improved flow metering... Multi-component foam dispenser with improved flow metering...

2006-01-31

2006-01-31

Ganey, Steven J. (Department: 3752)

Fluid sprinkling, spraying, and diffusing

Combining of separately supplied fluids

And valving means controlling flow for combining

C239S416000, C239S527000, C239S581100

Reexamination Certificate

active

06991185

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.

REFERENCES:
patent: 953511 (1910-03-01), Brooks
patent: 3305211 (1967-02-01), Phillips
patent: 3900163 (1975-08-01), Volker
patent: 4653691 (1987-03-01), Grime
patent: 4676437 (1987-06-01), Brown
patent: 4925107 (1990-05-01), Brown
patent: 5009342 (1991-04-01), Lawrence et al.
patent: 5529245 (1996-06-01), Brown
patent: 5944259 (1999-08-01), Brown

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