Stock material or miscellaneous articles – Structurally defined web or sheet – Including variation in thickness
Patent
1986-09-30
1988-11-01
Thibodeau, Paul J.
Stock material or miscellaneous articles
Structurally defined web or sheet
Including variation in thickness
428172, 428179, 428187, 4285426, B32B 330
Patent
active
047819758
ABSTRACT:
A forming tool for the production of sheets, more particularly from a thermoplastic synthetic material, is in the form of a roller, a press, or a casting mould, and comprises, upon its outer surface, engraving elements in predetermined spatial relationship with each other. It is to be possible to produce sheets inexpensively with this apparatus, and production tolerances are low. The engraving elements provided upon the outer surface, which is made of hard material, more particularly metal. The engraving elements project, above the outer surface, to a predetermined height, and the remainder of the outer surface exhibits a predetermined surface structure.
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