Cylinders and processes for making cylinders
OwnerKarl Bardin, John D. Littlehaleinventors
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Abstract
Improved cylinders and processes for making. The cylinders include a polyurethane core having a sheet or mesh of fiber applied thereto. In one embodiment, a process requires application of a resin and glass flake. In another embodiment, a process is shown for using a resin-impregnated carbon fiber. In the later embodiment, a Mylar® sheet is wrapped around the core, and they are heated. The Mylar® is subsequently removed and the core is further processed to provide a lightweight, but strong cylinder that can be used in engraving, etching, printing or the like. A conductive paint may be applied to the core-mesh combination to enhance electrolysis when the core is coated with a metal, such as copper or nickel.
Claims122
A cylinder comprising:
- a generally cylindrical polymer core;
- and
- a carbon fiber layer adhered to said core.
A cylinder comprising:
- a polymer core;
- a carbon fiber mesh adhered to said polymer core with a resin;
- a conductive paint layer surrounding said carbon fiber mesh;
- and
- a metallic layer surrounding said conductive paint layer.
A cylinder comprising:
- a polymer core;
- a resin impregnated carbon fiber layer adhered to said polymer core;
- a conductive paint layer surrounding said carbon fiber mesh;
- and
- a metallic layer surrounding said conductive paint layer.
A roll comprising:
- a core;
- a fiber layer situated about said core for increasing an axial strength of said core;
- and
- a work layer situated around said fiber layer.
A method for reducing weight of a cylinder comprising the steps of:
- providing a cylinder comprising a polyurethane core;
- said cylinder further comprising a fiber layer situated about said core for increasing an axial strength of said core;
- and
- a work layer situated around said fiber layer.
A method of making a cylinder comprising the steps of:
- adhering a fiber layer to a polymer core;
- and
- applying a working layer on the fiber layer.
The method as recited in claim 77 wherein said method further comprises the step of:
- saturating said fiber sheet with a resin to adhere the fiber layer to the polymer core.
The method as recited in claim 77 wherein said fiber sheet comprises at least one carbon fiber resin-impregnated sheet.
The method as recited in claim 77 wherein said method further comprises the step of:
- applying a polyester layer to said fiber layer.
A method of making a cylinder comprising the steps of:
- molding said core using a polyurethane foam;
- annealing said core;
- adhering a fiber layer to a polymer core;
- and
- applying a working layer on the fiber layer.
The method as recited in claim 115 wherein said method further comprises the step of:
- applying a copper layer on said conductive paint layer.
A method of making a cylinder comprising the steps of:
- adhering a carbon fiber resin-impregnated sheet to a polymer core;
- heating said at least one carbon fiber resin-impregnated sheet;
- and
- applying a working layer on the fiber layer.
A method of increasing strength of a cylinder comprising the steps of:
- providing a core;
- applying a fiber layer to the core;
- and
- applying a working layer around the fiber layer.
Dependencies are inferred from the claim text.