Shower head

Details Shower head Shower head

2000-03-13

2001-07-31

Morris, Lesley D. (Department: 3752)

Fluid sprinkling, spraying, and diffusing

Combining of separately supplied fluids

Liquid flow induces atmospheric air

Reexamination Certificate

active

06267305

ABSTRACT:

CROSS-REFERENCE TO RELATED APPLICATION
This application is based upon and claims the benefit of priority from the prior Japanese Patent Application No. 11-350635, filed Nov. 4, 1999, the entire contents of which are incorporated herein by reference.
BACKGROUND OF THE INVENTION
The present invention relates to a shower head having a high cleaning power, capable of saving water, and further being user-friendly.
Shower heads are widely used, for example, in households, for bathing or washing a car or the like, and industrially, in washing shower devices and the like. In these shower heads, a shower main body is equipped with a shower discharge section in which a great number of pressurized water spraying pores each having a small diameter are made. As a great number of string-like water jets sprayed from the shower head are made to collide on a surface to be washed, attached stains are peeled off or dissolved to be cleaned.
With the above-described structure, the cleaning power depends mostly on the impact power of the water jets and the amount of water applied. Therefore, in order to obtain a sufficient cleaning power, a great amount of high-pressure running water is required, due to which an advantage of saving water cannot be expected.
BRIEF SUMMARY OF THE INVENTION
The object of the present invention is to provide a shower head having a strong cleaning power and capable of saving water, which can be achieved by applying ultrasonic vibration to the shower head.
According to the present invention, a water stream jetted at high speed from a jet nozzle to an air absorption member tangles surrounding air into itself, and they are mixed together in an air-liquid mixing pipe. Then, the mixture is discharged from a discharge outlet. During this operation, a space created by the surface to be washed, an inner wall of an annular projecting member, and a shower discharge member, serves as a washing tub in a pseudo manner, and the air-liquid mixed water jet discharged in the pseudo tub is retained while making vortex.
Therefore, on the surface to be washed, the impact force made by the collision of air-liquid mixed water jets discharged from the discharge outlet, a stirring force made by the strong vortex within the pseudo washing tub, and further ultrasonic vibration generated when bubbles mixed in the water decompose, are applied, thus creating a strong cleaning power. Further, the substantial amount of water is decreased due to the bubbles which mix in, and the cleaning time is shortened due to the strong cleaning power. Therefore, it becomes possible to significantly reduce the substantial amount of water used.
Additional objects and advantages of the invention will be set forth in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. The objects and advantages of the invention may be realized and obtained by means of the instrumentalities and combinations particularly pointed out hereinafter.


REFERENCES:
patent: 2247311 (1941-06-01), Rockwood
patent: 4135670 (1979-01-01), Sugimoto
patent: 4629124 (1986-12-01), Gruber
patent: 4733818 (1988-03-01), Aghnides
patent: 5109553 (1992-05-01), Kishimoto
patent: 2068778 (1981-08-01), None
patent: 9-187391 (1997-07-01), None
patent: 10-43641 (1998-02-01), None

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