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US 12,005,657 B1Granted
Energy frequency treatment of molded plastic surfaces for topography alteration
OwnerEdward Helmut Bernardinventor
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Abstract
A thermal management system that provides finished plastic part surface temperature control using surface reheating to reduce plastic surface roughness and enhance curing conditions making it possible to produce resin rich molded plastic surfaces without typical micro cracks or fissures to which contaminant particles can adhere or to which dirt can attach.
Claims16
A method for creating finished injection molded plastic sensor windows or transparent covers with lower surface roughness than when they were injection molded including:
- a) Removing a plastic molded sensor window or transparent cover from an injection mold using a robot;
- b) Moving the plastic injection molded sensor window or transparent cover past an energy source to reheat a surface layer to a depth equal to the surface roughness of the plastic part surface to a temperature above Tg;
- c) Allowing the plastic injection molded sensor window or transparent cover to cool, providing a lower surface roughness than was originally present on the plastic part surface in the as-molded condition;
- thereby;
- creating a finished plastic injection molded sensor window or transparent cover with lower than as-molded surface roughness.
2 more elements
Dependencies are inferred from the claim text.