Mixing control for water and cleaning fluid
First Claim
Patent Images
1. A cleaning device comprising:
- a source of water;
a source of cleaning fluid;
mixing means having water and cleaning fluid inlets connected to said water and cleaning fluid sources respectively for mixing said water and cleaning fluid and dispensing a mixture at an outlet of said mixing means;
a nozzle connected to said mixing means outlet;
control means connected to said mixing means and having a single moveable member for valving the flow of at least one of said water and cleaning fluid inlets to said mixing means and the flow from said mixing means outlet for determining the rate of flow at said outlet and determining the mixing ratio of water and cleaning fluid; and
said control means including a first restriction means operated by said member and connected to said mixing means outlet for determining the rate of flow at said outlet and a second restriction means operated by said member and connected to a water inlet of said mixing means for determining said mixing ratio.
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Abstract
An in-line switch and mixer control including a first restriction adjacent the outlet of a mixing device having a cleaning fluid and water inlet for controlling the flow rate from the mixer and a second restriction connected to the water inlet for varying the restriction of the water inlet to determine the mixing ratio. Initially, the first restriction is totally closed preventing any flow from the mixer and the second restriction is initially unrestricted. The first and second restrictions include a common actuator for sequentially operating the first and second restrictions to various intermediate restrictive positions.
66 Citations
14 Claims
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1. A cleaning device comprising:
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a source of water; a source of cleaning fluid; mixing means having water and cleaning fluid inlets connected to said water and cleaning fluid sources respectively for mixing said water and cleaning fluid and dispensing a mixture at an outlet of said mixing means; a nozzle connected to said mixing means outlet; control means connected to said mixing means and having a single moveable member for valving the flow of at least one of said water and cleaning fluid inlets to said mixing means and the flow from said mixing means outlet for determining the rate of flow at said outlet and determining the mixing ratio of water and cleaning fluid; and said control means including a first restriction means operated by said member and connected to said mixing means outlet for determining the rate of flow at said outlet and a second restriction means operated by said member and connected to a water inlet of said mixing means for determining said mixing ratio. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9)
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10. A cleaning device comprising:
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a source of water; a source of cleaning fluid; mixing means having water and cleaning fluid inlets connected to said water and cleaning fluid sources respectively for mixing said water and cleaning fluid and dispensing a mixture at an outlet of said mixing means; a nozzle connected to said mixing means outlet; a first restriction means connected to said outlet for varying the restriction of said outlet from an initial totally restricted position; a second restriction means connected to said water inlet for varying the restriction of said water inlet from an initial unrestricted position; and actuator means including a control member common to said first and second restriction means for sequentially operating said first and second restriction means to control the flow to said nozzle and then controlling the concentration of said cleaning fluid in said mixture. - View Dependent Claims (11, 12, 13, 14)
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Specification