Baths – closets – sinks – and spittoons – Wash receptacles
Reexamination Certificate
2002-04-04
2003-10-14
Phillips, Charles E. (Department: 3751)
Baths, closets, sinks, and spittoons
Wash receptacles
C004S613000, C004S654000
Reexamination Certificate
active
06631525
ABSTRACT:
STATEMENT REGARDING FEDERALLY SPONSORED RESEARCH OR DEVELOPMENT
Not Applicable
BACKGROUND OF THE INVENTION
1. Field of the Invention
The present invention relates to plumbing fixtures, and more particularly to washing platforms suitable for use in bathrooms and kitchens where hands or articles, such as food or dishes, are washed.
2. Description of the Related Art
A conventional lavatory has a depressed basin with a rim wherein the basin extends downward through a hole in a counter with the rim engaging the top surface of the counter to support the lavatory. The bottom of the basin has a drain that is connected to the waste water pipe of the building in which the lavatory is located. Any one of several different types of stop mechanisms is provided to close the drain opening so that water is held within the bowl.
The lavatory typically is supplied with water from a faucet that is mounted through holes in either the lavatory rim or in the counter adjacent the lavatory. The faucet may have all aerator which mixes air with the flow of water exiting the nozzle of the faucet. The aeration produces a turbulent, non-transparent stream of water. However, in some applications it is desired that the stream from a faucet have a non-turbulent and transparent appearance, much like a clear glass rod. To provide such a stream, plumbing fixtures have been developed that produce a laminar flow of water. Laminar flow, as used herein, means fluid flow that is generally non-turbulent having essentially non-fluctuating local velocities and pressures, such that the resulting stream has a generally rod-like appearance.
To create the laminar flow, the supply water is fed through a series of flow smoothing elements before exiting via a suitable nozzle orifice. The flow smoothing elements are usually perforated disks, screens and filters which are arranged in series downstream from the supply water connection. The flow smoothing elements alter the flow velocity and redistribute the velocity profile as needed to convert turbulent flow into laminar flow.
The art has also developed kitchen sinks having a depressed basin associated with integral side work/drain areas that slope at a side to the basin.
However, there is still a need for improved washing areas, particularly in situations where counter space is scarce.
SUMMARY OF THE INVENTION
A washing apparatus includes a body with an upper first work surface surrounded by a wall structure that confines fluid from flowing off the first work surface and into an external area adjacent the lavatory. The body has a coupler suitable to link to a building waste water disposal system. A bowl is removably positionable on the first work surface and has a bottom portion with an aperture there through and a sealing means extending around the aperture on an exterior lower surface of the bowl. When the bowl is placed on the first work surface, the sealing means engages the first work surface to inhibit flow of fluid there between. As one option to empty the bowl, a user merely lifts the bowl from the work surface to break the seal.
In one preferred version, the washing apparatus is provided with a raised centrally located work surface that is essentially radially surrounded by a trough to collect water running off of the work surface. The work surface slopes downward going outward from a crowned center to direct water into the trough. The drain opening is located in the trough.
Another aspect of the present washing apparatus furnishes a removable platform which can be placed on the work surface to provide a raised secondary work surface. For example, the secondary work surface is supported on the work surface by one or more walls. In a preferred embodiment, the lower edges of the walls that engage the work surface have apertures which allow fluid to flow along the work surface from beneath the secondary work surface to the coupler. The unique open bottom bowl may be placed on the secondary work surface.
REFERENCES:
patent: 270701 (1883-01-01), Scott
patent: D35008 (1901-08-01), Clow
patent: 2065347 (1936-12-01), Schulse
patent: 2594938 (1952-04-01), Leavitt
patent: 3070812 (1963-01-01), Skrmetta
patent: 4305166 (1981-12-01), Rose
patent: 4689841 (1987-09-01), Owen
patent: 4698861 (1987-10-01), Bogusz
patent: 5435022 (1995-07-01), Andersen
patent: 6240578 (2001-06-01), Planella
Kohler Bodies of Water Catalog, Aug. 1, 2000 pp. 13.3 and 13.4.
Gordon William F.
Piatt James M.
Haas George E.
Kohler Co.
Phillips Charles E.
Quarles & Brady LLP
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