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US 2012/0190518 A1Published application
Injection mold apparatus and method utilizing shaft rotation for the manufacture of roll devices
OwnerJames Joseph Semler, David Allen Tinsleyinventors
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Abstract
A method for manufacturing a roll. The method includes positioning a shaft for the roll within a mold, introducing flowable material into the mold from a first end thereof, rotating the shaft at least about 20 revolutions, and following introducing the flowable material into the mold and rotating the shaft, curing the material at an elevated temperature. The method substantially reduces or otherwise eliminates weld lines and flow lines in the manufactured roll.
Claims19
A method of manufacturing a roller having a shaft, comprising:
- positioning the shaft within a mold;
- injecting flowable material into the mold;
- following the flowable material being injected into the mold, rotating one of the shaft and the mold;
- and
- following the rotating, curing the flowable material.
2 more elements
A roller, comprising:
- a shaft;
- material formed around the shaft, the material comprising a cured, moldable material, the material having a flow pattern forming one of a substantially spiral pattern and a substantially corkscrew shaped pattern about the shaft.
A method for manufacturing a roll, comprising:
- positioning a shaft for the roll within a cavity of a mold;
- introducing flowable material into the mold from a first end thereof;
- rotating the shaft at least about 20 revolutions;
- and
- following introducing the flowable material into the mold and rotating the shaft, curing the material at an elevated temperature.
2 more elements
Dependencies are inferred from the claim text.