Longitudinally partitioned tubular body

Details Longitudinally partitioned tubular body Longitudinally partitioned tubular body

1975-06-11

1976-09-14

Moorhead, Davis T.

Envelopes, wrappers, and paperboard boxes

Paperboard box

229 56, 222 94, 220 20, B65D 506, B65D 3112

Patent

active

039802221

ABSTRACT:
A longitudinally partitioned tubular body made from a single sheet of material. The sheet of material is looped, spindled and seamed to integrally form a chordal partition and a tubular exterior wall. The tubular exterior wall comprises two circumferentially overlapped longitudinally extending seams. The two seams are oppositely disposed adjacent the two oppositely disposed longitudinally extending side edges of the chordal partition. The chordal partition divides the space within the tubular exterior wall into two longitudinally extendingg tubular spaces disposed in back-to-back relation. A pair of oppositely disposed edges of the sheet of material extend longitudinally of the body. One such tubular body embodiment has one such longitudinally extending edge of the sheet disposed inside one of the tubular spaces and the other of the longitudinally extending sheet edges of the sheet disposed outside the exterior wall of the body. An alternate tubular body embodiment is provided in which both such longitudinally extending edges of the sheet are disposed outside the exterior wall of the body.

REFERENCES:
patent: 1459257 (1923-06-01), Reger
patent: 2401110 (1946-05-01), Rohdin
patent: 3224640 (1965-12-01), Schneider et al.
patent: 3381818 (1968-05-01), Cope et al.
patent: 3506157 (1970-04-01), Dukess
patent: 3601252 (1971-08-01), Sager

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