US 7,320,442 B2
On-off shower head
Orlando Bosio, Casaloldo (Italy)
Assigned to AMFAG S.p.A., Castel Goffredo (Italy)
Filed on Nov. 10, 2004, as Appl. No. 10/984,784.
Claims priority of application No. MN2003A0042 (IT), filed on Nov. 14, 2003.
Prior Publication US 2005/0103905 A1, May 19, 2005
This patent is subject to a terminal disclaimer.
Int. Cl. B05B 1/30 (2006.01); B05B 9/00 (2006.01)
U.S. Cl. 239—569  [239/443; 239/444; 239/445; 239/446; 239/447; 239/448; 239/449; 239/436; 239/562; 239/312] 10 Claims
OG exemplary drawing
 
4. An on-off shower head, comprising:
an outer enclosure,
a jet opening and closing device,
water conveyance means arranged within said enclosure, for preventing any contact of the water with said enclosure,
said outer enclosure being shaped to form a tubular portion that is open at one end and is connected at an other end to a head-shaped portion,
said water conveyance means comprising a first insert and a second insert that are lockable to each other and that are contained respectively within the tubular portion and within the head-shaped portion of the outer enclosure,
said first insert comprising, at an end that protrudes from the enclosure, means for coupling to a water feed duct,
said second insert comprising the jet opening and closing device, and said second insert, contained within the head-shaped portion of the outer enclosure, being provided with axial locking means, and said second insert, contained within the head-shaped portion of the outer enclosure, comprising:
a cylindrical wall, accommodated within the head-shaped portion of the outer enclosure, open at the outward end of said enclosure, and provided with a top at the other end, and further comprising, at a side wall, a port for the insertion of an end of the first insert;
a distribution unit, which is accommodated within said cylindrical wall and kept in position in abutment against said top thereof and is provided with water flow channels, which are open at their two ends and are comprised in a peripheral ring, a portion of space comprised within said ring being open at the end that is directed toward the outside of the enclosure and being provided, at its other end, with a cap, which comprises water flow openings, a plurality of ridges being provided for ensuring connection between said ports and the channels comprised in the peripheral ring, a port being further provided at the side wall and mating with the end of the first insert;
an annular element, which is associated with said cylindrical wall and which delimits a central portion of space that is provided with means for blocking the flow of water comprised in a peripheral ring provided with water flow channels, said means being arranged as a continuation of the channels comprised within the peripheral ring of the distribution unit;
a flow control element, which is associated with a rod for operation by an operator by means of a button in contrast with a spring in order to open and close the jet by moving between two positions that are respectively out of contact and in contact with the cap of the dispensing unit.