Plastic sheet with a ruled line for bending

Details Plastic sheet with a ruled line for bending Plastic sheet with a ruled line for bending

1992-11-18

1994-04-12

Loney, Donald J.

Stock material or miscellaneous articles

Structurally defined web or sheet

Including variation in thickness

428156, 428192, B32B 328

Patent

active

053024354

ABSTRACT:
A plastic sheet having a groove as a ruled line in at least one surface of a plastic sheet. The groove is composed of a cut portion or a deep recess portion and a shallow recess portion in the longitudinal direction of the groove, and chamfered portions having a radius of curvature of 0.05-1 mm are formed at both ends in the longitudinal direction of the bottom of the shallow recess portion.

REFERENCES:
patent: 3907193 (1975-09-01), Heller
patent: 4570546 (1986-02-01), Batelka
patent: 4986496 (1991-01-01), Marentic et al.

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