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US 4,982,461 AGranted
Bathtub having a pump, and bath system having a pump
AssigneeNikko Co., Ltd.
InventorsToshio Mikiya, Haruki Nakao
Life of this patent
Estimating the term…
Abstract
A bathtub having a pump, comprising a tub having side walls one of which has an inner surface, an outer surface, and a thin portion made of magnetically permeable material, pump means secured to the inner surface of the thin portion, for taking in hot water from said tub and pressurizing the hot water, motor means secured to the outer surface of the thin portion and opposing said pump means, and a magnetic coupling means for mangetically connecting said pump means and said motor means.
Claims5
A bathing system having a pump for generating a high-pressure jet-stream of water, comprising:
- at least one wall having an inner surface, an outer surface, and including a flat thin portion made of magnetically permeable material, an inner surface of said thin portion located co-planar with said inner surface of said wall;
- a bath tub arranged so that an upper periphery of the bath tub is located adjacent to said thin portion of said wall;
- a pump arranged adjacent to the upper periphery of said bath tub at a position adjacent said inner surface of said thin portion, so as not to be placed under water in said tub, but to take in water from said tub and to pressurize said water;
- a motor secured adjacent to an outer surface of said thin portion and opposing said pump;
- and
- a magnetic coupling means having a driven drum coupled to said pump and having a surface opposing one side of said thin portion, a drive drum coupled to said motor coaxially with said driven drum and having a surface opposing the other side of said thin portion, a first plurality of magnets fixed to said surface of said drive drum, and a second plurality of magnets fixed to said surface of said driven drum and facing said first plurality of magnets;
- said magnetic coupling means being disposed to magnetically couple said pump with said motor through said thin portion without direct contact between said motor and said pump.
4 more elements
Dependencies are inferred from the claim text.