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US 2005/0110195 A1Published application
Method of manufacturing a web-winding device
AssigneeEastman Kodak Company
InventorsMichael McGovern, Edgar Earnhart
Life of this patent
Estimating the term…
Abstract
A web-winding method uses a durable thermoplastic polyester resin or polyester resin blend support structure and web capture slot (gate) formed in an interior portion of the support structure. The interior portion is joined to an inner annular surface that has increased lubricity, toughness and creep resistance resulting in decreased debris generation plus increased structural integrity and dimensional stability.
Claims5
A method of manufacturing a web-winding device, comprising the step of:
- providing a generally cylindrical injection molded support structure having an outer web wrapping surface for receiving at least one convolution of a web and, an interior portion having an annular surface joined to the outer web wrapping surface, said outer web wrapping surface having a surface texture less than 0.5 microns Ra to produce a static coefficient of friction x1 between the outer web wrapping surface and a first contact surface of said at least one convolution of web and a second contact surface of an at least a partial second convolution of said web produces a static coefficient of friction x2, wherein x1 is less than x2.
Dependencies are inferred from the claim text.