Cutter head with skirt
AssigneeIHC Holland IE B.V.
InventorEdwin Albert Munts
Life of this patent
Estimating the term…
Abstract
A cutter head arranged to rotate about an axis of rotation for removing material from a water bed comprises a base ring positioned respect to the axis of rotation; a hub positioned with respect to the axis of rotation; a plurality of arms extending between the base ring and the hub, the arms comprising a plurality of cutting tools; and a plurality of skirts, each skirt extending from one of the plurality of arms to the hub to form a closed surface between the arm and the hub from a distal end of the cutter head toward the base ring and ending with a side configured to be parallel to a backplate, leaving an open channel between the skirt and the backplate.
Claims18
A cutter head comprising:
- a base ring positioned around an axis of rotation;
- and
- a hub positioned to rotate the cutter head about the axis of rotation;
- a plurality of arms extending between and connecting to the base ring and the hub, the arms comprising a plurality of cutting tools;
- and
- a plurality of skirts, each skirt connecting to one of the plurality of arms and to the hub to form a closed surface between the arm and the hub from a distal end of the cutter head toward the base ring and ending with a side configured to be parallel to a backplate that is angled toward a center of the distal end of the cutter head from the base ring and extends from the base ring to the hub, wherein the skirt side parallel to the backplate is spaced from the backplate leaving an open channel between each skirt and the backplate, and wherein the cutter head is arranged to rotate about the axis of rotation for removing material from a water bed.
A method of forming a cutter head with skirts comprises:
- obtaining a cutter head comprising a base ring positioned around an axis of rotation, a hub positioned to rotate the cutter head about the axis of rotation, a plurality of arms extending between and connecting to the base ring and the hub, and a plurality of cutting tools on the plurality of arms;
- and
- connecting a plurality of skirts to the cutter head to form closed channels between at least some of the plurality of arms and the hub from a distal end of the cutter head toward the base ring and ending with a side configured to be parallel to and spaced apart from a backplate, and leave an open channel between the backplate and each skirt, the backplate being angled toward a center of the distal end of the cutter head from the base ring and extends from the base ring to the hub,
- and wherein the cutter head is arranged to rotate about an axis of rotation for removing material from a water bed.
Dependencies are inferred from the claim text.