Method of duplicating shapes and finishes
AssigneeKelsey-Hayes Company
InventorHarold J. Reikowski
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Abstract
A method of duplicating shapes embodying resinous material and more particularly fiber reinforced resinous material is taught. The method includes the formation of a mold separation sheet conforming to the mold contours, placing the separation sheet within the mold and charging the mold with the desired resinous mixture. Upon curing of the resinous mixture and ejection of the article from the mold the separation sheet is removed and discarded.
Claims11
A method of duplicating shapes comprising:
- producing a master pattern, producing a negative of the master pattern, forming a replica of the master pattern, producing a vacuum forming pattern, producing a vacuum formed separation sheet on the vacuum forming pattern, covering the surfaces of the replica with said vacuum formed separation sheet, packing a plastic material against the vacuum formed separation sheet in said replica mold, and causing said plastic mix to harden.
A method of producing parallel fiber reinforced articles comprising:
- producing a vacuum formed separation sheet to fit a mold for confining the parallel fibers, fitting the separation sheet over surfaces of the mold, placing binder incorporated parallely laid fibers over the surfaces of the separation sheet and hardening the binder against the separation sheet.
A method of producing molded parts from a plastic material which requires a mold release to prevent the parts from sticking to the mold, comprising:
- vacuum forming a sheet of mold release agent to conform to the shape of the mold, fitting the vacuum formed sheet onto the molding surfaces of the mold, molding the plastic mix against the separation sheet, and hardening the plastic mix.
Dependencies are inferred from the claim text.