摘要:
A reclosable plastic bag construction having front and back walls attached at their side edges with continuous elongate interlocking separable rib and groove elements along confronting faces of the walls adjacent the top of the bag with the rib and groove elements being interlockable by the application of closing pressure and having frictional surface means at their outer surface for applying local forces of opposing directions parallel to the rib and groove to cause a curl in the interlocked rib and groove and to thereby cause them to separate by relatively sliding the rib and groove axially relative to each other.
摘要:
One or more prefabricated extruded reclosable plastic profile strips travelling in the same direction and at the same speed as a prefabricated continuously travelling film web are guided into covergence with the web, transversely adjusted as to position on the web while the web and the fastener strips are travelling without interruption, and then the travelling fastener strips are permanently secured to the travelling web. The adjustability feature is especially useful to facilitate making of various sizes of bags from the zipper profile film web.
摘要:
Closure device for bags, pouches, and other articles, consisting of two outer and one inner interengaging webs of resilient, flexible material, said webs having ribs and grooves therein shaped complementarily to interlock with each other, the two outer webs having end portions which are brought together and merged with the inner web into a heat sealed bead, with each web having lines of weakness formed therein in close proximity to the bead whereby said web can be torn open to provide access to its interlocking elements and said bead can also be readily severed to form separate closure tubes.
摘要:
A self-retaining, one-piece, extruded plastic wrap member having a sheet-like flexible body with an object-embracing inner face and longitudinal edges which are arranged to be in edge-to-edge joint abutment when the body is wrapped about an elongated object with the inner face baked in substantially continuous engagement with the article at both sides of the joint and having a complementary interlock structure provided along the edges on the opposite outer face of the body to secure it about the object.
摘要:
AN APPARATUS FOR MAKING RECLOSABLE BAGS HAVING A FIRST EXTRUDER CHANNEL FOR EXTRUDING A FIRST THERMOPLASTIC SUBSTANCE AND HAVING A SERIES OF MINOR EXRUSION CHANNELS FOR EXTRUDING A SECOND THERMOPLASTIC SUBSTANCE SUCH THAT INTERLOCKING RIB AND GROVE ELEMENTS OF A FLEXIBLE RECLOSABLE CONTAINER MAY BE FORMED SEPARATELY, YET INTEGRALLY WITH THE FILM FORMING THE CLOSURE STRIPS OR WALLS OF THE CONTAINER.
摘要:
A separably connective flexible toy assembly comprises a plurality of generally flat elongated geometric flexible toy members each of which has at its opposite ends complementary fastener means, at least one of the members having a slit intermediate its length through which another of the members may project whereby to provide a multi-arm configuration, each of the arms being bendable and twistable along its length such that the fastener ribs and grooves of the arm ends are interlockable with fastener ribs and grooves of another arm end of the same member or of another member.The members are particularly adapted to be made up from an extruded section formed from synthetic plastic material and severed to provide the individual members.The assembly may be supplied as a kit having a plurality of separate members adapted to be assembled together by the user.
摘要:
Flexible closure strips to be releasably interlocked wherein each of the closure strips has first and second sets of interlocking profiles with the first set facing in a first lateral direction and the second set facing in the opposite lateral direction and being shaped and sized so that they interlock with each other in either lateral direction.
摘要:
An improved reclosable fastener structure for bags or the like including first and second continuous strips of flexible plastic with outer sides of the strip forming opening flanges and inner sides of the strips forming bag mounting flaps, continuous fastener profiles for each of the strips including a first fastener profile integral with one surface of the first strip and a second fastener profile of a size and shape to releasably interlock with the first profile and being integrally connected with the second strip immediate its edges and a continuous interconnecting film web of substantially uniform width extending between said strips and integrally connected at its outer edges at a location between the profiles and the edges of the mounting flaps of the first and second strips.
摘要:
METHOD OF MAKING BAGS EACH WITH A RECLOSABLE OPENING WHEREIN A SHEET OF HEAT SEALABLE MATERIAL IS FORMED INTO A SPLIT TUBE, AND THE SPLIT OF THE TUBE IS COVERED WITH A CLOSURE STRIP WHICH IS SUBSEQUENTLY SECURED THERETO TO FORM A CLOSED TUBE, THE CLOSURE STRIP CONTAINING THREE WEBS WITH INTERLOCKING RIB AND GROOVE ELEMENTS DISPOSED ON ALL THREE WEBS WITH SAID ELEMENTS PLACED BETWEEN THE CENTER OF THE STRIP AND THE EXTREME MARGINAL EDGES, AND CONTAINING TWO PREFORMED TEAR LINES BETWEEN SAID INTERLOCKING ELEMENTS AND THEN HAVING THE WEBS OF THE CLOSURE STRIP HEAT SEALED AT THE CENTER OF THE CLOSURE STRIP AND FINALLY SECURING THE TUBE IN THE HEAT SEALED AREA.