Closure arrangement for reclosable bag
AssigneeReynolds Consumer Products, Inc.
InventorTimothy J. May
Life of this patent
Estimating the term…
Abstract
A zipper for a reclosable bag includes an elongated male and female profile. The female profile has first and second legs parallel to each other to form a channel there between. The first leg has a plurality of portions removed to form a series of breaks in the first leg along the length, and the second leg is substantially continuous in dimension along the length. The male profile is constructed for engaging the channel and interlocking with the first and second legs. The zipper is made by a rotary punching mechanism having L-shaped punches insertable in between the first and second legs.
Claims6
A method for constructing a reclosable zipper for a bag, the method comprising:
- providing an elongated zipper profile attached to a web and having first and second opposed legs with a channel therebetween, the first and second legs being substantially perpendicular to the web;
- feeding the zipper profile between a die wheel and a punch wheel, the punch wheel including an L-shaped punch, and the die wheel including a punch receiver;
- rotating the punch wheel and the die wheel coaxially;
- engaging a lower end of the L-shaped punch into the channel between the first and second legs;
- and
- punching the first leg with the punch to remove a slug from the first leg by advancing the punch with a cam, the advancement being in a direction parallel to an axis of rotation of the wheels.
Dependencies are inferred from the claim text.