Pleated closure construction

Details Pleated closure construction Pleated closure construction

1978-01-30

1980-03-04

Garbe, Stephen P.

Envelopes, wrappers, and paperboard boxes

Paperboard box

Box material includes a coating or a nonpaperboard...

215326, 215328, 215363, B65D 312

Patent

active

041913221

ABSTRACT:
A closure member constructed from a single flat blank and having an annular flange extending from a flat central portion, the outer surface of the annular flange being substantially continuous, is provided by forming a plurality of pleats running generally perpendicular to the perimeter of the flange and projecting toward the inside of the annular flange.

REFERENCES:
patent: 919715 (1909-04-01), Gray
patent: 1209091 (1916-12-01), Westlake
patent: 2008576 (1935-07-01), Buttress
patent: 2555380 (1951-06-01), Stewart et al.

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