Device for dispensing a washing or rinsing agent
First Claim
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1. Device for dispensing a washing or rinsing agent, in particular for a dishwashing machine, comprising:
- a container having;
an inlet opening which is adapted to be closed in a fluid-tight manner and is able to allow filling of a quantity of a washing/rinsing agent inside the container,an outlet opening which is adapted to be closed in a fluid-tight manner and is able to allow the dispensing of a quantity of washing/rinsing agent during an operating cycle of the dispensing device, anda feeder screw mounted rotatably about its longitudinal axis inside the container and situated in a position substantially coaxial with the outlet opening and capable of conveying the washing/rinsing agent towards said outlet opening;
transmission members driven by a motor unit and able to impart a rotation to the screw about its axis during an operating cycle of the device; and
a closing valve unit able selectively to free and close off in a fluid-tight manner the outlet opening,wherein the closing valve means comprise a butterfly shutter for freeing and closing off selectively the outlet opening in a manner controlled by rotation of the screw; and
wherein the screw comprises a first and a second portion which are interconnected with play in the direction of the axis of said screw, which are rotationally locked together and which are spaced by means of the action of resilient elements arranged between said first and second portions.
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Abstract
The device for dispensing a washing or rinsing agent for a dishwashing machine comprises:
- a container which has
- an inlet opening, which is adapted to be closed in a fluid-tight manner, for filling a quantity of a washing/rinsing agent inside the container;
- an outlet opening which is adapted to be closed in a fluid-tight manner, for dispensing a quantity of washing/rinsing agent during an operating cycle of the device;
- a feeder screw mounted rotatably inside the container, coaxial with the outlet opening and capable of conveying the washing/rinsing agent towards said outlet opening;
- transmission members driven by a motor unit and able to impart a rotation to the screw during an operating cycle of the device; and
- a closing valve unit able selectively to free and close off in a fluid-tight manner the outlet opening.
- a container which has
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Citations
8 Claims
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1. Device for dispensing a washing or rinsing agent, in particular for a dishwashing machine, comprising:
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a container having; an inlet opening which is adapted to be closed in a fluid-tight manner and is able to allow filling of a quantity of a washing/rinsing agent inside the container, an outlet opening which is adapted to be closed in a fluid-tight manner and is able to allow the dispensing of a quantity of washing/rinsing agent during an operating cycle of the dispensing device, and a feeder screw mounted rotatably about its longitudinal axis inside the container and situated in a position substantially coaxial with the outlet opening and capable of conveying the washing/rinsing agent towards said outlet opening; transmission members driven by a motor unit and able to impart a rotation to the screw about its axis during an operating cycle of the device; and a closing valve unit able selectively to free and close off in a fluid-tight manner the outlet opening, wherein the closing valve means comprise a butterfly shutter for freeing and closing off selectively the outlet opening in a manner controlled by rotation of the screw; and wherein the screw comprises a first and a second portion which are interconnected with play in the direction of the axis of said screw, which are rotationally locked together and which are spaced by means of the action of resilient elements arranged between said first and second portions. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8)
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Specification