Valve assembly
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United States of America Patent
Stats
-
Dec 25, 2007
Grant Date -
Jul 14, 2005
app pub date -
Jan 14, 2004
filing date -
Jan 14, 2004
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
The invention relates to a valve assembly for use in connection with carpet cleaning extraction machines and similar extraction cleaning devices. The invention allows the intake of liquid and the mixing of different liquids in a mixing chamber, such as clean water with detergent, and the discharge of a selected liquid without the formation of an air or vapor lock that would inhibit the discharge of the selected liquid. In particular, the invention prevents the formation of a vapor lock when water is being drawn into a chamber that would prevent the subsequent discharge or spraying of the liquid.
First Claim
Family
International Classification(s)
Cited Art Landscape
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