Back to results
US 6,250,221 B1Granted
Imaging system having external drum and method for producing drum
AssigneeAgfa NV
InventorWilliam W. Tice
Life of this patent
Estimating the term…
Abstract
The present invention provides an extruded external drum for an imaging system. The external drum is extruded from a light-weight and strong material such as an aluminum alloy. The external drum includes a thin outer wall, a hollow cylindrical hub, and a plurality of thin radial spokes extending between the cylindrical hub and the outer wall. The present invention provides a stiff external drum having low rotational inertia.
Claims21
An apparatus comprising:
- an extruded external drum for an imaging system, the external drum including an outer wall, a hub, and a plurality of radial spokes extending between the hub and the outer wall, the outer wall further including a first section for receiving a clamp for securing a supply of recording media about the external drum, and a second, opposing section, having increased mass, for rotationally balancing the clamp.
An external drum for an imaging system, comprising:
- an outer wall;
- a hub;
- and
- a plurality of radial spokes extending between the hub and the outer wall, the outer wall including a section for receiving a clamp for securing a supply of recording media about the external drum, and an opposing section, having increased mass, for rotationally balancing the clamp.
1 more element
An imaging system comprising:
- an external drum for supporting a supply of recording media, the external drum including an outer wall, a hub, and a plurality of radial spokes extending between the hub and the outer wall, the outer wall further including a section for receiving a clamp for securing the recording media about the external drum, and an opposing section, having increased mass, for rotationally balancing the clamp;
- and
- a system for recording image data onto the recording media.
A method for producing an external drum for an imaging system, comprising the steps of:
- providing a supply of a material;
- extruding the material through a die to form the external drum, the external drum including an outer wall, a hub, and a plurality of radial spokes extending between the hub and the outer wall;
- forming a groove for a clamping mechanism in the outer wall;
- and
- increasing a mass of the outer wall opposite the groove to rotationally balance the external drum.
2 more elements
Dependencies are inferred from the claim text.