Child resistant zipper closure for recloseable pouch with double slider and methods

Patent metadata

Field	Value
Publication number	US-9850038-B2
Application number	US-201414202585-A
Country	US
Kind code	B2
Filing date	Mar 10, 2014
Priority date	Mar 15, 2013
Publication date	Dec 26, 2017
Grant date	Dec 26, 2017

Abstract

A child resistant zipper closure for a plastic bag includes a double slider, including a first slider and second slider. The first and second sliders are oriented on the zipper closure such that when at least one of the first slider and second slider is moving in a direction toward the other of the first slider and second slider, the zipper is interlocking; and when at least one of the first slider and second slider is moving in a direction away from the other of the first slider and second slider, the zipper is unlocking. The first and second sliders can be releasably connected together.

First claim

What is claimed is:

1. A double slider for a plastic zipper closure having a male track and a female track including interlocking male and female profiles; the double slider comprising:
(a) a first slider having a body with an opening end and a closing end;
(i) the body including a top member and first and second sidewalls extending therefrom; the first slider having a separator finger depending from an internal surface of the top member and between the first and second sidewalls;
(A) the body adapted to move along top edges of the tracks with the first and second sidewalls straddling the tracks, and the finger penetrating between the tracks;

(ii) the separator finger being wider toward the opening end of the first slider than at the closing end of the first slider;
(iii) the first and second sidewalls having internal surfaces spaced wider apart toward the opening end configured to permit separation of the male and female profiles by the wider end of the finger extending between the first and second sidewalls toward the opening end;
(iv) the first and second sidewalls having internal surfaces spaced sufficiently close together toward the closing end configured to press the male and female profiles into interlocking relationship as the first slider is moved in a fastener closing direction;

(b) a second slider, releasably connected to the first slider, the second slider having a body with an opening end and a closing end;
(i) the second slider body including a top member and first and second sidewalls extending therefrom; the second slider having a separator finger depending from an internal surface of the top member and between the first and second sidewalls;
(A) the second slider body adapted to move along top edges of the tracks with the first and second sidewalls straddling the tracks and the finger penetrating between the tracks;

(ii) the second slider separator finger being wider toward the opening end of the second slider than at the closing end of the second slider;
(iii) the second slider first and second sidewalls having internal surfaces spaced wider apart toward the opening end configured to permit separation of the male and female profiles by the wider end of the finger extending between the first and second sidewalls toward the opening end;
(iv) the second slider first and second sidewalls having internal surfaces spaced sufficiently close together toward the closing end configured to press the male and female profiles into interlocking relationship as the second slider is moved in a fastener closing direction;

(c) the first slider and second slider being selectively releasably connected together between an engaged position and a disengaged position;
(i) in the engaged position, the first and second sliders move together along the top edges of the track, and the opening end of the first slider body is against the opening end of the second slider body;
(ii) in the disengaged position, the first and second sliders move independent of each other along the top edges of the track.

2. A double slider according to claim 1 wherein:
(a) the first slider and second slider have a projection-receiver arrangement to allow the selective releasable connection therebetween.

3. A double slider according to claim 2 wherein:
(a) at least one member of the projection-receiver arrangement is on the first slider, and at least one member of the projection-receiver arrangement is on the second slider.

4. A double slider according to claim 2 wherein:
(a) the projection-receiver arrangement includes a tab with a protuberance extending from one of the first and second sliders and an aperture sized to receive the protuberance in the other of the first and second sliders.

5. A double slider according to claim 2 wherein:
(a) the projection-receiver arrangement includes a lobed projection extending from one of the first and second sliders and an aperture sized to receive the lobed projection in the other of the first and second sliders.

6. A double slider according to claim 2 wherein:
(a) each of the first slider and second sliders has both a projection and a receiver.

7. A double slider according to claim 1 wherein:
(a) the first and second sidewalls of the first slider body extend to a point below the interlocking male and female profiles; and
(b) the first and second sidewalls of the second slider body extend to a point below the interlocking male and female profiles.

Assignees

• Reynolds Presto Products Inc

Inventors

• Petkovsek Gregory L
• Dowler Roger E
• Thompson Gregg
• Aversa Samuel D

Classifications

• Y10T24/2502

  Plural zippers · CPC title

• A44B19/382

  "Two-way" or "double-acting" separable slide fasteners · CPC title

• B65D33/2591 Primary

  Operations & Transport · mapped topic

• A44B19/267

  for slide fasteners with edges of stringers having uniform section throughout the length thereof (for sacks or bags B65D33/2508) · CPC title

• B65D33/2541 Primary

  characterised by the slide fastener, e.g. adapted to interlock with a sheet between the interlocking members having sections of particular shape · CPC title