Method and apparatus for manufacturing a resealable package
View Patent ↗A method of making a resealable package is provided. The method comprises providing a closure mechanism, the closure mechanism comprising first and second closure profiles, the first and second closure profiles constructed and arranged to selectively engage, and wherein the first and second closure profiles are engaged. The method further comprises providing a pair of panels comprising a flexible polymeric material, inserting a wedge between the closure profiles, disengaging the closure profiles; and attaching the closure mechanism to the pair of side panels. Various embodiments of opening devices are also presented.
1. In a process for making a resealable package, a method of disengaging at least a portion of a pair of engaged resealable closure profiles comprising:
(a) optionally attaching a slider to said resealable closure profiles; and
(b) actuating a movable wedge and thereby inserting said wedge into at least a portion of said engaged resealable closure profiles, wherein said wedge is a portion of an apparatus comprising:
(i) a piston and a rod, said rod being in operable connection with the wedge;
(ii) a guide channel aligned to guide the closure profiles in proximity with the wedge;
(iii) a support blade in planer alignment with said wedge such that the closure profiles are supported by the blade and aligned in proximity with the wedge; and
(iv) means for activating said piston such that the piston moves the rod which functions to insert the wedge into the closure profiles to thereby open the closure profiles.
2. The method of claim 1 further comprising a step of attaching a slider to the closure profiles contemporaneously with said disengagement.
3. The method of claim 1 wherein the shape of the wedge is selected from the group consisting of substantially circular wedges and substantially linear wedges.
4. The method of claim 1 wherein said wedge undergoes substantially linear motion to be inserted into said engaged profiles.
5. The method of claim 1 wherein the wedge undergoes substantially linear motion to be inserted into said engaged profiles.
6. The method of claim 1 wherein the wedge undergoes substantially arcuate motion to be inserted into said engaged profiles.
7. The method of claim 1 wherein the wedge undergoes substantially arcuate motion to be inserted into said engaged profiles.
8. The method of claim 1 wherein said wedge comprises guide members to align the closure profiles in proximity with the wedge.
9. The method of claim 1 wherein the wedge has a length substantially equal to the width of the opening of the resealable package being manufactured.
10. The method of claim 1 wherein the wedge has a length less than the width of the resealable package being manufactured and following disengagement of the stationary closure profiles by inserting the wedge, the engaged portion of the profile is disengaged by differential motion between the inserted wedge and the profile along the length of the engaged portion of the profile.
11. The method of claim 1 wherein said wedge comprises a channel wedge.
12. The method of claim 1 wherein said process for making a resealable package comprises attaching package side panels to said resealable closure profiles contemporaneously with disengaging said closure profiles by inserting thereinto said wedge.
13. The method of claim 1 wherein said process for making a resealable package comprises attaching package side panels to said resealable closure profiles prior to disengaging said closure profiles by inserting thereinto said wedge.
14. The method of claim 13 wherein said process for making a resealable package further comprises forming a complete package and inserting thereinto a fill through said disengaged resealable closure profiles.
15. The method of claim 1 wherein said process for making a resealable package further comprises attaching a slider to said resealable closure profiles prior to inserting said wedge into at least the portion of said engaged profiles.