IP Library Granted Patent US 7,322,216
Granted Patent B2
US 7,322,216 · App. 10/507,930 · Granted Jan 29, 2008

Washing aid dispenser and washing machine comprising said dispenser

Assignee: Electrolux Home Products Corporation N.V.
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Quick Facts
Patent No.
US 7,322,216
App. No.
10/507,930
Granted
Jan 29, 2008
Kind
B2
Abstract

A washing aid dispenser for a washing machine comprises at least a compartment, which is adapted to contain washing aids and is provided with a first siphon having a pre-determined suction height and at least a second siphon having a higher suction height than the first siphon. The first and the second siphon are adapted to draw in and convey towards a washing tub of the machine layers of the washing aids mixed with water lying at different heights in the dispenser.

Claims (54)

1. A washing machine comprising:

a washing aid dispenser; and

a washing tub adapted to be supplied, through said washing aid dispenser, with a mixture of water and a washing aid,

wherein said washing aid dispenser includes

(i) a compartment adapted to contain the washing aid,

(ii) a first siphon having a first suction height to draw-in and convey towards said washing tub a first layer of the mixture,

(iii) a second siphon having a second suction height, greater than the first suction height, to draw-in and convey towards said washing tub a second layer of the mixture lying in said washing aid dispenser at a height greater than a height of the first layer of the mixture, and

(v) a third siphon having a third suction height that is greater than the second suction height.

2. The washing machine according to claim 1 , wherein

said third siphon includes a conduit that is open at opposite ends thereof, and a cap piece situated above said conduit.

3. The washing machine according to claim 2 , wherein

a base of said cap piece forms an acute angle with respect to a bottom of said washing aid dispenser so as to define a suction zone having the third suction height as a variable suction height relative to the bottom of said washing aid dispenser.

4. The washing machine according to claim 3 , wherein

said second siphon includes a second conduit associated with a second cap piece situated above said second conduit, said second conduit being open at opposite ends thereof, with a base of said second cap piece forming an acute angle with respect to the bottom of said washing aid dispenser so as to define a second suction zone having a variable suction height relative to the bottom of said washing aid dispenser,

with said suction zone associated with said third siphon being located at a greater distance from the bottom of said washing aid dispenser than is said second suction zone.

5. The washing machine according to claim 1 , wherein

a water head of said third siphon is to be higher than or equal to a water head of said second siphon.

6. A washing machine comprising:

a washing aid dispenser; and

a washing tub adapted to be supplied, through said washing aid dispenser, with a mixture of water and a washing aid,

wherein said washing aid dispenser includes

(i) a compartment adapted to contain the washing aid,

(ii) a first siphon having a first suction height to draw in and convey towards said washing tub a first layer of the mixture, said first siphon including a first conduit associated with a first cap piece situated above said first conduit, said first conduit being open at opposite ends thereof, and

(iii) a second siphon having a second suction height, greater than the first suction height, to draw in and convey towards said washing tub a second layer of the mixture lying in said washing aid dispenser at a height greater than a height of the first layer of the mixture, said second siphon including a second conduit associated with a second cap piece situated above said second conduit, said second conduit being open at opposite ends thereof, and a base of said second cap piece forming an acute angle with respect to a bottom of said washing aid dispenser so as to define a first suction zone having said second suction height as a variable suction height relative to the bottom of said washing aid dispenser.

7. The washing machine according to claim 6 , further comprising:

a third siphon including a third conduit associated with a third cap piece situated above said third conduit, said third conduit being open at opposite ends thereof, with a base of said third cap piece forming an acute angle with respect to the bottom of said washing aid dispenser so as to define a second suction zone having a variable suction height relative to the bottom of said washing aid dispenser,

wherein said second suction zone is located at a greater distance from the bottom of said washing aid dispenser than is said first suction zone.

8. The washing machine according to claim 7 , wherein

said second suction zone has a lower level that substantially coincides with an upper level of said first suction zone, and extends with the same inclination as said first suction zone, in such a manner as to obtain a substantially continuous suction zone including said first and second suction zones.

9. A washing machine comprising:

a washing aid dispenser; and

a washing tub adapted to be supplied, through said washing aid dispenser, with a mixture of water and a washing aid,

wherein said washing aid dispenser includes

(i) a compartment adapted to contain the washing aid,

(ii) a first siphon having a first suction height to draw in and convey towards said washing tub a first layer of the mixture, said first siphon including a first conduit associated with a first cap piece situated above said first conduit, said first conduit being open at opposite ends thereof and having a first diameter, and

(iii) a second siphon having a second suction height, greater than the first suction height, to draw in and convey towards said washing tub a second layer of the mixture lying in said washing aid dispenser at a height greater than a height of the first layer of the mixture, said second siphon including a second conduit associated with a second cap piece situated above said second conduit, said second conduit being open at opposite ends thereof and having a second diameter that is greater than said first diameter.

10. A washing machine comprising:

a washing aid dispenser; and

a washing tub adapted to be supplied, through said washing aid dispenser, with a mixture of water and a washing aid,

wherein said washing aid dispenser includes

(i) a compartment adapted to contain the washing aid,

(ii) a first siphon having a first suction height to draw-in and convey towards said washing tub a first layer of the mixture,

(iii) a second siphon having a second suction height, greater than the first suction height, to draw-in and convey towards said washing tub a second layer of the mixture lying in said washing aid dispenser at a height greater than a height of the first layer of the mixture, and

(v) a third siphon,

with a water head of said second siphon to be higher than or a water head of said first siphon, and with a water head of said third siphon to be higher than a water head of said second siphon.

11. A washing machine comprising:

a washing aid dispenser; and

a washing tub adapted to be supplied, through said washing aid dispenser, with a mixture of water and a washing aid,

wherein said washing aid dispenser includes

(i) a compartment adapted to contain the washing aid,

(ii) a first siphon having a first suction height to draw-in and convey towards said washing tub a first layer of the mixture,

(iii) a second siphon having a second suction height, greater than the first suction height, to draw-in and convey towards said washing tub a second layer of the mixture lying in said washing aid dispenser at a height greater than a height of the first layer of the mixture, and

(v) a third siphon,

with a water head of said second siphon to be higher than or equal to a water head of said first siphon, and with a diameter of said second siphon being greater than a diameter of said first siphon.

Assignments (1)
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Sep 17, 2004
From: FAVRET, UGO; CIMETTA, SILVANO
To: ELECTROLUX HOME PRODUCTS CORPORATION N.V.
Reel/Frame 016455/0308 →
Priority Claims (1)
IT PN2002A0016 · Mar 19, 2002 · national
Continuity (1)
Related Publication 20050166645A1 · Aug 4, 2005