Shower head

Fluid sprinkling – spraying – and diffusing – Flow line or nozzle attached or carried handgrip or handle – Sleeve-type grip

Reexamination Certificate

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Details

C239S525000, C239S556000, C239S558000, C239S562000, C239S590000

Reexamination Certificate

active

11281705

ABSTRACT:
A water-saving type shower head operable to reduce flow volume while maintaining a high discharge pressure. A diameter-reduced water passage19of a flow control member20disposed in a head portion22of a shower head body12has a first and a second water passage portions40and41provided on an entry side and an exit side thereof, respectively. The first water passage portion40has a small diameter, and the second water passage portion41has an inside diameter which is 1.5 to 3 times that of the first water passage portion40. On an upstream side of the first water passage portion40, a tapered diameter-reduced portion43reduced in diameter in a flow direction is formed, and on a downstream side of the second water passage portion41, a diameter-increased portion45increased in diameter in the flow direction is formed.

REFERENCES:
patent: RE25447 (1963-09-01), Hjulian
patent: 3138332 (1964-06-01), Hinderer
patent: 4135670 (1979-01-01), Sugimoto
patent: 4184638 (1980-01-01), Ogasawara et al.
patent: 4666085 (1987-05-01), Liaw
patent: 6267301 (2001-07-01), Haruch
patent: 6739527 (2004-05-01), Chung
patent: 6852236 (2005-02-01), Holt et al.
patent: 6905082 (2005-06-01), Wu
patent: 7044405 (2006-05-01), Kawazoe et al.
patent: 1 232 801 (2002-08-01), None
patent: 2088246 (1982-06-01), None
patent: 06-24067 (1994-03-01), None
patent: 2670509 (1997-07-01), None
patent: 11-057535 (1999-03-01), None
patent: 2005319449 (2005-11-01), None
European Search Report dated Oct. 9, 2006 of EP 05026520.6.

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