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Vacuum breaker for faucets
| Details |
Inventors: Fleischmann, Gary A.;
Assignee: Kohler Co. (Kohler, WI)
Primary Examiner: Kashnikow; Andres
Assistant Examiner: Douglas; Lisa
Attorney, Agent or Firm: Quarles & Brady
A faucet with a vacuum breaker for a pull-out spray head plumbing fixture is provided. The vacuum breaker is placed in the faucet housing immediately under a valve unit and has fluid inlets and an outlet all passing therethrough. The vacuum breaker also has a multiplicity of openings extending through a base portion. A flapper gasket is stretch fitted over the base portion. The vacuum breaker affords ease of installation and removal. A check valve is placed immediately adjacent to the vacuum breaker. |
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DETAILED DESCRIPTION In one aspect, the invention provides a faucet housing having a first bore in communication with a fluid inlet and fluid outlet, and a second bore.
A valve unit is positioned in the first bore for regulating fluid flow from the fluid inlet to the fluid outlet.
A pull-out spray unit is removably mountable adjacent a terminus of the second bore and connected to a tube, the tube extending into the second bore and being axially movable therein.
A conduit extends between the first bore and the tube.
A vacuum breaker is positioned in the first bore between the fluid inlet and valve unit.
The vacuum breaker has a base section with a fluid entry passage, a fluid exit passage and at least one air passage, all three passing therethrough.
The fluid entry passage is in communication with the fluid inlet, the fluid exit passage is in communication with the fluid outlet, and the air passage is in communication at one end with atmosphere and at another end with the conduit (when the other end is not closed).
A flapper valve is mountable to removably cover the other end of the air passageway so as to permit air entry into the conduit during reduced pressure conditions, the flapper valve having a gasket with a central hole and also a peripheral portion that surrounds the base section.
In one aspect, there are a multiplicity of such air passages, and they are positioned in opposing groups.
In another aspect, a check valve is positioned in the conduit in fluid communication with the vacuum breaker exit passage.
In still another aspect, the base section includes locator openings for the valve unit, two fluid inlets, and one outlet positioned inward of the opposing groups of air passages.
In another embodiment, the invention provides a vacuum breaker for use with a faucet having a pull-out spray unit.
A cylindrically shaped body member has a base portion with a multiplicity of air passageways extending therethrough.
A flapper valve is mounted to removably close the air passageways.
It surrounds the base portion
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