Flexible sealed liquid containing packet

Details Flexible sealed liquid containing packet Flexible sealed liquid containing packet

1975-10-01

1977-02-15

Lipman, Steven E.

Special receptacle or package

Laminate sheet packet

With gas permeable cover

53 39, 206812, 229 35MF, B65D 7500

Patent

active

040078388

ABSTRACT:
This packet is so constructed as to prevent formation of liquid blisters at sealing areas, which are potential break points and which reduces the shelf life of the packet and does not look good and can cause loss of sterility. The packet has opposed walls which are sealed together at opposite sides and at one end, leaving the other end open for injection of liquid. The open end is lastly sealed. Capillary action of the liquid along the insides of the side seams of the packet can often reach the lastly sealed open end before sealing is accomplished, to cause a blister or weak point which can rupture. The present packet is provided with breaks in the side seams and below the top seam to delay capillary action of the liquid along the inside of the side seams from reaching the open end of the packet before said open end can be sealed, thus preventing formation of liquid blisters at the last sealed area of the packet.

REFERENCES:
patent: 2750075 (1956-06-01), Land et al.
patent: 2976988 (1961-03-01), Schneider
patent: 3036894 (1962-05-01), Forestiere
patent: 3342324 (1967-09-01), Piazze
patent: 3531906 (1970-10-01), Bjorkengren
patent: 3913789 (1975-10-01), Miller

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