Recloseable bag and method of production
OwnerGordon Jenkinsinventor
Life of this patent
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Abstract
Disclosed herein is a recloseable bag having a front and rear faces. The reclosing feature is accomplished with one or more bendable shape-retaining spines formed and bonded to a face of the bag. The spines are formed of resilient plastic having a shape-retaining strand such as wire embedded centrally therein, or from a shape-memory polymer. A variety of spine-shapes are disclosed including straight, T-shaped and curved spines. An installation machine is also disclosed for formation of and heat- or adhesive-application of the spines to the recloseable self-sealing bag material either prior to or during the filling and sealing process. The present invention=s design is simple and straightforward, highly effective, and can be economically manufactured.
Claims20
A recloseable bag having front and rear faces, comprising:
- a bag, and
- an elongate bendable shape-retaining spine bonded lengthwise to a face of the bag and having a substantial elongate component substantially parallel to an edge of said bag.
A machine for manufacturing a recloseable bag with flat spines, comprising:
- at least two feeder spools;
- a tension roller;
- an articulating alignment spool;
- a press for bonding said spines to said bag material;
- and,
- servo-driven feed motors;
- wherein said servo-driven motors drive said feed spools;
- and,
- wherein a first feeder spool feeds bag material, guided by said tension rollers and alignment spool, into said press and a second feeder spool feeds spine material into said press.
A method for producing a recloseable bag, comprising the steps of
- feeding bag material into a press;
- feeding bendable shape-retaining spine material into said press on said bag material;
- and,
- cutting and bonding said spine material to said bag material.
Dependencies are inferred from the claim text.