Self-Cleaning Intake Screen
First Claim
1. A self-cleaning intake screen, comprising:
- a rotatable intake screen having a cylindrical side portion and openings distributed across the cylindrical side portion for passing a flow of water; and
a first cleaning element proximate to an outer surface of the cylindrical side portion, the first cleaning element comprising;
first bristles extending to the cylindrical side portion,second bristles extending to the cylindrical side portion, andthird bristles that are disposed between the first and second bristles and that protrude into the openings of the cylindrical side portion,wherein the third bristles have at least one of a diameter and a stiffness that is less than that of the first and second bristles.
1 Assignment
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Accused Products
Abstract
A self-cleaning screen that automatically cleans both the inside and outside surfaces of the cylindrical screen using only the rotation of the cylindrical screen itself. This self-cleaning ability is accomplished by using a fixed brush on the exterior surface of the screen, and a freely rotating brush on the interior surface of the screen, where the freely rotating brush is driven by the movement of the screen itself. The fixed brush includes first and second bristles extending to the cylindrical side portion, and third bristles that are disposed between the first and second bristles and that protrude into the openings of the cylindrical side portion. The third bristles have a diameter and/or stiffness that is less than that of the first and second bristles.
14 Citations
18 Claims
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1. A self-cleaning intake screen, comprising:
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a rotatable intake screen having a cylindrical side portion and openings distributed across the cylindrical side portion for passing a flow of water; and a first cleaning element proximate to an outer surface of the cylindrical side portion, the first cleaning element comprising; first bristles extending to the cylindrical side portion, second bristles extending to the cylindrical side portion, and third bristles that are disposed between the first and second bristles and that protrude into the openings of the cylindrical side portion, wherein the third bristles have at least one of a diameter and a stiffness that is less than that of the first and second bristles. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 16, 17, 18)
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Specification