Suction tube package

• US 4,512,472 A
• Filed: 10/17/1983
• Issued: 04/23/1985
• Est. Priority Date: 10/21/1982
• Status: Expired due to Term

• Current Assignee: ABet Tetra PAK
• Original Assignee: Tetra PAK International AB
• Inventors: Jarund, Erik
• Primary Examiner(s): NOT, DEFINED
• Assistant Examiner(s): Ehrhardt, Brenda J.
• Application Number:
  US06/542,712
• Time in Patent Office: 554 Days
• Field of Search: 206/217, 206/813, 206/820, 206/443, 229/7 S, 215/1 A
• US Class Current: 206/443
• CPC Class Codes: B65D 75/30 Articles or materials enclosed between two opposed sheets or blanks having their margins united, e.g. by pressure-sensitive adhesive, crimping, heat-sealing, or welding
• CPC Class Codes: B65D 75/527 Tear-lines for separating a package into individual packages B65D1/30, B65D21/0206, B65D75/34 take precedence
• CPC Class Codes: B65D 75/54 Cards, coupons, or other inserts or accessories opening devices B65D75/70
• CPC Class Codes: Y10S 206/82 Separable, striplike plural articles

Abstract

Suction tube packages comprising suction tubes arranged in succession, which are placed between two weblike plastic strips sealed to one another, are used for the application of suction tubes to packing containers for e.g. juice or milk. The weblike suction tube packages are provided with transverse cuts between each individual suction tube envelope which facilitate the separation of individual envelopes on application of the suction tube envelopes to the packing container, but increase the risk of unintentional detachment of envelopes from the suction tube package. This risk can be appreciably reduced if the suction tube package is provided between, or on the outside of, the two long strips sealed to one another with two substantially parallel tapes (11,12) situated at some distance from one another. The tapes (11,12) absorb the stresses the suction tube strip is subjected to in longitudinal direction and thus prevent them from causing a lengthening of the cuts present in the suction tube package as a result of which individual suction tube envelopes could be separated unintentionally or the cuts could extend into and damage the tight suction tube envelopes.

Claims

1. A suction tube package comprising a pair of flexible strips between which a plurality of suction tubes are placed transversely, said strips being sealed to one another on all sides of the suction tubes and provided with cut portions between the seals, wherein the strips have a width greater than a length of the suction tubes and edges of the strips protrude beyond the length of the tubes;

said seals comprising longitudinal seals which seal longitudinal edge zones of said strips and transverse seals extending along the width of the strips on either side of each Suction tube;

said longitudinal and said transverse seals defining closed pockets for each suction tube;

said cuts provided parallel to said transverse seals and said closed pockets;

a plurality of edge cuts provided in said edge zones transverse to said longitudinal seals;

two parallel tapes of a material sealed between the strips extending in a longitudinal direction of the strips at some distance from one another parallel with the longitudinal edges;

said tapes extending longitudinally between said cut portions and said edge cuts so as to provide uncut length of said two parallel tapes;

said two parallel tapes sealed to said traverse seals so as to prevent tensile stresses from deforming said cut portions and said edge cuts.

2. A suction tube package in accordance with claim 1. characterized in that further cuts (8) extend in line with the other cuts (9) substantially from the one tape (11) to the other tape (12).

3. A suction tube package in accordance with claim 1, wherein the tapes are manufactured from a laminated material which comprises a central layer of higher melting temperature than outer layers.

4. A suction tube package in accordance with claim 3, characterized in that the tapes (11,12) comprise a central layer of polypropylene which is covered on both sides with polyethylene.

5. A suction tube package in accordance with claim 4, wherein the tapes comprise one or more layers of plastic material oriented in the longitudinal direction of the tape.

6. A suction tube package in accordance with claim 1, wherein the seal between the strips serves at the same time as a seal for the tapes.