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US 5,294,052 AGranted
Fluid dispensing system
AssigneeGlas-Craft, Inc.
InventorTimothy S. Kukesh
Life of this patent
Estimating the term…
Abstract
Fluid dispensing systems include a novel fluid dispensing system with air motor driven pumps which provide a substantially, constant preselected dispensation of fluids without deleterious transient variations in the fluid output as the dispensing system is operated on and off, a novel valve particularly adapted for use in multi-component dispensing systems to provide selective controlled flow of fluid component materials or of a cleansing solvent in the system, and a novel dispenser for multi-component dispensing systems incorporating the novel valve and, in some embodiments, the novel valve combined with a preferred spraying means.
Claims22
An internal mix dispenser for plural component materials, comprising:
- a dispenser body carrying a dispensing outlet for said plural component materials, said dispenser body also carrying a first component connection to receive a flow of a first component, a second component connection to receive a flow of a second component, a solvent connection to receive a flow of solvent and a flow control valve between said first component, second component and solvent connections and said dispensing outlet for controlling the flow of said first and second components and said solvent to said dispensing outlet, said flow control valve comprising:
- a valve body forming a cavity;
- a movable valve member carried within said cavity of said valve body and movable between first and second positions,
- said valve body having a first passageway between said first component connection and a first internal opening at the cavity of the valve body, a second passageway between said second component connection and a second internal opening at the cavity of the valve body, a third passageway between said dispensing outlet and a third internal opening at the cavity of the valve body and a fourth passageway between said solvent connection and a fourth internal opening at the cavity of the valve body;
- said movable valve member being provided with a first valve passageway leading from a surface of the movable valve body to an internal passageway junction, a second valve passageway leading from a surface of the movable valve body to said internal passageway junction and a third valve passageway leading from a surface of the movable valve body to said internal passageway junction;
- said internal openings of said valve body and said movable valve member passageways being located at the cavity of the valve body and the surface of the movable valve member so that:
- in said first position of the movable valve member, said first valve passageway is aligned with said first passageway of said valve body, said second valve passageway is aligned with said second passageway of said valve body and said third valve passageway is aligned with said third passageway of said valve body, thereby permitting said first and second components to flow through the first and second passageways of the valve body and said movable valve member, to combine at the internal passageway junction of the movable valve member and to flow through the third passageways of the movable valve member and valve body to said dispensing outlet;
- and so that
- in said second position, one of said first and second valve passageways is aligned with said fourth passageway of said valve body, the other of said first and second valve passageways being blocked by the valve body, and said third passageway of said valve body is aligned with said third valve passageway, thereby permitting solvent to flow through said fourth passageway of the valve body and said one of the first and second valve passageways to said internal passageway junction and to flow through the third passageways of the valve member and valve body to said dispensing outlet.
6 more elements
A valve, comprising:
- a valve body;
- and
- a movable valve member carried within a cavity of said valve body and movable between first and second positions;
- said valve body having a first passageway leading from a first connection for a fluid material to a first internal opening at the cavity of the valve body, a second passageway leading from a second connection for a fluid material to a second internal opening at the cavity of the valve body, a third passageway leading from a third connection to a third internal opening at the cavity of the valve body and a fourth passageway leading from a fourth connection to a fourth internal opening at the cavity of the valve body;
- said movable valve member being provided with a first valve passageway leading from the surface of the movable valve body to an internal passageway junction, a second valve passageway leading from the surface of the movable valve body to said internal passageway junction and a third valve passageway leading from the surface of the movable valve body to said internal passageway junction;
- said valve body passageways and said movable valve member passageways being located at the cavity of the valve body and the surface of the movable valve member so that:
- in said first position of the valve member, said first valve passageway is aligned with said first passageway of said valve body, said second valve passageway is aligned with said second passageway of said valve body and said third valve passageway is aligned with said third passageway of said valve body, thereby permitting fluid materials to flow through the first and second passageways of the valve body and valve member, to combine at the internal passageway junction of the valve member and to flow through the third passageways of the valve member and valve body to said third connection;
- and so that
- in said second position, one of said first and second valve passageways is aligned with said fourth passageway of said valve body, the other of said first and second valve passageways being blocked by the valve body, and said third passageway of said valve body is aligned with said third valve passageway, thereby permitting fluid to flow through said fourth passageway of the valve body and said one of the first and second valve passageways to said internal passageway junction and to flow through the third passageway of the valve member and valve body to said third connection.
6 more elements
Dependencies are inferred from the claim text.