Device for the closing of the upper lateral flaps of parallelepi

Details Device for the closing of the upper lateral flaps of parallelepi Device for the closing of the upper lateral flaps of parallelepi

1989-05-22

1990-11-27

Spruill, Robert L.

Package making

With means responsive to a sensed condition

Of package and filled receptacle closing or opening

53374, 53382, 493179, 493183, B65B 720, B65B 5702

Patent

active

049726544

ABSTRACT:
A device for closing the upper lateral flaps of long parallelepiped cases includes a pair of helical guides with a reduced longitudinal length and a pair of extension arms controllable so that they may be displaced from an at rest position to an operating position. In the latter position the two arms are arranged as an extension of the helical guides towards the inlet to the device so as to force the lateral flaps of the case to accomplish the closing engagement with the helices.

REFERENCES:
patent: 2969630 (1961-01-01), Shenigo
patent: 3603061 (1971-09-01), Harmes
patent: 4262469 (1981-04-01), Ooms et al.
patent: 4295841 (1981-10-01), Ward, Jr.
patent: 4331435 (1982-05-01), Nowacki
patent: 4422282 (1983-12-01), Marchetti
patent: 4524560 (1985-06-01), Goodman
patent: 4525980 (1985-07-01), Ulrich et al.
patent: 4642966 (1987-02-01), Marchetti
patent: 4698950 (1987-10-01), Marchetti

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