Fluid sprinkling – spraying – and diffusing – Plural interchangeable discharge modifiers – outlet... – Selectively arrangeable outlet means
Reexamination Certificate
2000-06-30
2001-08-14
Scherbel, David A. (Department: 3752)
Fluid sprinkling, spraying, and diffusing
Plural interchangeable discharge modifiers, outlet...
Selectively arrangeable outlet means
C239S446000, C239S526000
Reexamination Certificate
active
06273343
ABSTRACT:
BACKGROUND OF THE INVENTION
1. Field of the Invention
The present invention relates to a sprayer, and more particularly to a sprayer having a reinforced head.
2. Description of the Prior Art
Typical sprayers comprise a discharge head rotatably attached onto a handle and including a number of holes formed therein for discharging water. The handle includes an outlet formed therein for selectively coupling to either of the holes of the discharge head for selecting the required spraying nozzle. U.S. Pat. No. 4.068,801 to Leutheuser, U.S. Pat. No. 5,551,637 to Lo, and U.S. Pat. Nos. 5,566,886 and 5,598,978 to Wang disclose the typical sprayers having a head rotatably secured thereto. The discharge head includes a housing having the holes of various shapes formed therein, and a plate secured to the rear portion of the housing with the welding process, such as the ultrasonic welding process. The plate includes a number of orifices formed therein and communicating with the holes of the housing respectively for communicating the holes with the outlet of the handle. The housing normally includes a flat rear surface, and the plate includes a flat structure and engaged onto the flat rear surface of the housing, such that the plate may not be solidly secured to the housing.
The present invention has arisen to mitigate and/or obviate the afore-described disadvantages of the conventional sprayers.
SUMMARY OF THE INVENTION
The primary objective of the present invention is to provide a discharge head for a sprayer having a cover that may be solidly secured to the housing of the discharge head.
In accordance with one aspect of the invention, there is provided a sprayer comprising a sprayer body including a front portion having an outlet formed therein and including a rear portion, a housing rotatably secured to the front portion of the sprayer body at a pivot shaft, the housing including a rear portion having a peripheral wall and a peripheral partition extended therefrom and including a plurality of ports defined by a plurality of barrels respectively, and a cover secured to the rear portion of the housing and engaged with the peripheral partition of the housing, the cover including at least one slot formed therein. The barrels include a height greater than that of the peripheral partition of the housing aid include an end extended beyond the peripheral partition of the housing and engaged into the slot of the cover for solidly securing the cover to the housing.
The housing includes an annular channel formed and defined between the peripheral wall and the peripheral partition, the housing includes an annular groove formed therein and defined by an a cylindrical fence and the peripheral partition, the housing includes a front portion having a plurality of openings formed therein and communicating with the annular channel of the housing and having a plurality of apertures formed therein and communicating with the annular groove of the housing, the cover includes a first hole and a second hole formed therein the peripheral partition includes a duct extended radially inward of the housing and communicating with the first hole of the cover for coupling the openings and the annular channel of the housing to the outlet of the sprayer body, and the cylindrical fence includes a conduit communicating with the second hole of the cover for coupling the apertures and the annular groove of the housing to the outlet of the sprayer body, and for allowing the water to be guided to flow out of the housing via the openings and the apertures when the housing is rotated relative to the sprayer body.
The housing further includes a space formed therein and defined by a peripheral panel, and includes an annular chamber defined between the cylindrical fence and the peripheral panel, the peripheral panel includes a passage formed therein, the cover includes a third hole formed therein and communicating with the passage of the peripheral panel for guiding the water to flow into the space via the third hole.
The first and the second holes of the cover and the slot of the cover are arranged in a circle for aligning with the outlet of the sprayer body when the housing is rotated relative to the sprayer body. The peripheral wall of the housing has a height no less than that of the barrels for receiving the cover in the peripheral wall of the housing. The slot of the cover is a curved slot, the housing includes at least two of the barrels engaged into the curved slot of the cover.
Further objectives and advantages of the present invention will become apparent from a careful reading of a detailed description provided hereinbelow with appropriate reference to accompanying drawings.
REFERENCES:
patent: 4068801 (1978-01-01), Leutheuser
patent: 5551637 (1996-09-01), Lo
patent: 5566886 (1996-10-01), Wang
patent: 5598978 (1997-02-01), Wang
patent: 5823442 (1998-10-01), Guo
patent: 5873531 (1999-02-01), Wang
patent: 5992762 (1999-11-01), Wang
patent: 6113009 (2000-09-01), Chih
patent: 6164566 (2000-12-01), Hui-Chen
Baxley Charles E.
Ganey Steven J.
Scherbel David A.
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