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4792240 |
Extruded zipper strips for bags
A bag has a reclosable zipper between wall panels and extending between side edges at the top end of the bag, the zipper comprising a continuous length of extruded profile plastic strip folded upon...
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4792983 |
Bag or like packing having an inviolable closure
The bag comprises, respectively fixed by welding to the two inner edge portions of the opening (3) of the bag and substantially throughout the length of the opening, two bars (4, 5) of plastics...
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4791710 |
Self-aligning closable extruded profile plastic fastener and method
A method and structure for a non-reopening extruded plastic profile fastener wherein complementary rib and groove type profiles are constructed and arranged to be pressed into interlocking...
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4787754 |
Reclosable flexible bags having fastener profiles attached to exterior walls thereof and a method of making same
This invention provides a reclosable flexible bag having a tape of greater thickness around its opening portion. On the surfaces of the tape facing the bag, fastener profiles are provided to seal...
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4787880 |
Method of making extruded zipper strips and bags containing the same
A method of making bags having a reclosable zipper between wall panels and extending between side edges at the top end of the bag, the zipper comprising a continuous length of extruded profile...
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4786285 |
Ostomy appliance and coupling ring assembly therefor
An ostomy appliance in which the coupling ring assembly that detachably joins the faceplate and pouch of the appliance takes the form of a pair of flexible plastic rings, each ring being generally...
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4782951 |
Reclosable package and method of making reclosable package
A reclosable package comprising interlocking closure strips positioned outside of a hermetic seal or seal area and the method for producing same. The hermetic seal is of the easy-open or peelaway...
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4778282 |
Trident interlocking closure profile configuration
An interlocking closure fastening device comprising an omega-shaped closure element and a co-acting closure element having a trident profile configuration. The co-acting closure element has a...
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4767220 |
Interlocking closure bar for use in high temperature environment
A flexible container for storing foods in a freezer and cooking foods therein. The container includes an interlocking closure fastening device comprising an omega-shaped closure element and a...
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4764977 |
Reclosable plastic container
Methods for forming rib and groove plastic fastener elements and for securing them to a film web are provided. The rib element, as extruded, has an arrowhead-shaped tip, a concave tail, and a...
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4759642 |
Reclosable bag especially suitable for cereal packaging, and method
A four corner bag especially suitable for packaging dry cereal, and method of making the bag from sheet or plastic film material. The bag is provided with opposite wall panels joined at a closed...
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4756629 |
System for producing non-compatible zipper film
A method and apparatus of forming a reclosable bag of flexible film wherein the bag has confronting side walls joined by seams at its edges and confronting rib and groove fastener strips at the top...
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4756414 |
Antistatic sheet material and package
A flexible sheet material and package formed therefrom is provided. The multilayer sheet material includes a first flexible heat sealable plastic material with antistatic properties on at least the...
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4756628 |
Reclosable flexible container having a downwardly depending cuff
A reclosable flexible container is provided as a pouch having front and back walls and a pouch opening at the upper edge thereof. The pouch has a cuff about the periphery of the pouch opening. A...
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4755248 |
Slot-cast intergrated interlocking film closure structure
A method and apparatus is disclosed for producing a reclosable bag film. The bag film is produced by extruding a bag film web having a relatively thinner first portion and relatively thicker second...
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4744674 |
Non-reclosable mechanically fillable and closable link bag structure and method
A container structure including a bag body formed of flexible plastic film with a top through which the contents may be filled or emptied from the bag interior and a mechanically interconnectable...
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4741789 |
Apparatus and process for forming and applying a profile and adjacent rib-type zipper to a traveling film web
A method and apparatus are provided for applying a profile with adjacent ribs to a traveling film web to form an adjacent rib-type zipper. The device includes a first extruder for extruding a base...
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4736496 |
Closure for thermoplastic containers
A method for providing a wide-track integral thermoplastic closure for film or sheet stock. The closure includes ribs on either side of an element of the closure to provide the wide-track effect to...
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4731911 |
Extruded closure strip carrying reactivatable adhesive layer
A closure strip adapted to be bonded to a substrate comprises a one-piece polymeric extrusion having a base surface essentially no wider than the profile portion of the strip and wherein a plane...
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4709398 |
Chain bags, method and apparatus
A bag chain structure and method of making wherein fastener strips are attached across the surface of the film at predetermined intervals with the fastener strips having a plurality of rib and...
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4709400 |
Produce bag with tie tails
Produce bags (11) formed of plastic, the panels or sides (15, 16) of the bag being slitted to enable produce contained in the bag to be ventilated; the bags further including tails (25, 26) for...
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4706297 |
Foldable top bag and method
A container in the form of a collapsable bag is provided with a pair of opposed expandably connected walls providing a top opening. A foldable top provided by upper end portions of the container...
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4703518 |
Attachment of plastic zipper to the outside of incompatible bag wall web
Disclosed are bags especially adapted to be made from plastic material and in which the bag body film or material and extruded plastic zippers are fusibly incompatible. A pair of extruded plastic...
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4701361 |
Tubular film with transverse closure strips
An extruded film tube has joined to its inside surface a closure strip extending generally transversely, preferably helically, relative to the axis of the tube and the tube and closure strip are...
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4701358 |
Thermoplastic film with integral closures and reclosable container formed therefrom
An improved cast process and apparatus for fusing closure elements, particularly those with thickened bases, to separately extruded film or sheet stock for making containers with integral...
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4698274 |
Quadruple profile plastic tubing for making bags
Plastic tubular film structure for forming multiple bags. The tubular film structure has a first pair of rib elements, a second pair of diametrically opposed rib elements, a first pair of groove...
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4698118 |
Apparatus for forming plastic fastener and plastic accessory strips and uniting the same with a film
For producing a plastic film having a plastic fastener, with male and female interlockable profiles, and accessory strips, such as ribs and strips, in preparation of a reclosable plastic bag, there...
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4691372 |
Manufacture of multi-layered reclosable bag making material and bags made therefrom
A method of making materials for bags of the type having reclosable fasteners wherein the wall portions are of a laminate structure and wherein interlockable fastener elements are directly bonded...
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4691373 |
Zipper closure with unitary adhesive cover sheet
Zipper closures for selective attachment along elongated openings in preexisting containers such as bags or cartons to thereby convert such cartons or bags into reclosable containers. The closure...
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4683015 |
Method of forming flexible fastener elements and securing them to a traveling web
Methods for forming rib and groove plastic fastener elements and for securing them to a film web are provided. The rib element, as extruded, has an arrowhead-shaped tip, a concave tail, and a...
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4677697 |
Clean up glove
A disposable plastic clean up glove is economical to manufacture and easy to use and is made from two sheets of thermo setting plastic sheets joined together by heat sealing into shape and...
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4676851 |
Process and apparatus for forming integral interlocking closure film stock
A process and apparatus for producing integral interlocking closure film stock useful in making reclosable containers by extruding a film of molten thermoplastic material onto a casting roll,...
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4673383 |
Fusible rib bonding of fasteners to substrate
A plastic separable fastener strip, and assembly of such strip with a substrate, and a method of attaching such strip to a substrate, comprising the provision of and utilization of fusible ribs on...
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4672723 |
Stabilized reclosable extruded plastic fasteners
A reclosable extruded plastic fastener for joining sheet material such as walls of bags, and method of making the same. The fastener comprises a grooved female profile and a complementary...
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4666536 |
Method of and means for making reclosable bag material, and material produced thereby
A method of and apparatus for making, and the resulting material for fabricating reclosable bags and in which a length of web of predetermined width of bag material as wound on a mandrel has...
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4665557 |
Multiple omega closures
An interlocking closure fastening device comprising a first closure element having an omega-shaped profile portion, and a second complementary closure element having a plurality of omega-shaped...
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4665552 |
Zipper equipped bags and method of and means for manually filling and separating them
Integrally serially connected top fillable bags have closed bottoms and sides and reclosable zippers from which pull flanges extend upwardly. The bags are separated along their sides including the...
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4657792 |
Funnel material for bags and method
Funnel material for bags and a method of making the same, wherein elongated sheet panels are disposed in face-to-face relation and secured along an intermediate longitudinally extended zig-zag...
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4658433 |
Rib and groove closure bag with bead sealed sides
A side-sealed bag with a closure device. The bag has a peripheral bead seal and an upper flat seal extending inwardly from the bead seal between the top and the closure elements and a lower flat...
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4655862 |
Method of and means for making reclosable bags and method therefor
A method of making making reclosable bags and material for making the bags, and apparatus wherein in one aspect extruded resiliently flexible plastic profiled reclosable fastener strip means for...
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4654878 |
Plastic bag chain
A serially interconnected chain of reclosable, zipper-lock plastic bags is arranged for facilitated handling in an automatic bag filling machine. The bag chain may be formed with single or plural...
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4641360 |
Carrying bag with interlocking handle portions
A carrying bag comprises two substantially rectangular sheets of plastic film, which constitute mutually opposite walls and are joined along three edges and have free edge portions defining an...
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4637060 |
Zipper-lock bag chain adapter for automatic loading and heat seal closing
A chain of reclosable plastic bags with the bags formed of a thin plastic material having front and rear walls with reclosable pressure interlocking rib and groove elements on the confronting faces...
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4631211 |
Means for sequential solid phase organic synthesis and methods using the same
A means for carrying out sequential, solid phase syntheses is disclosed as are methods of its use. The synthesis means comprises a foraminous container that encloses reactive particles. The...
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4630311 |
Zipper-lock bag chain with tearable strip interconnection means
A chain of laterally spaced interconnected bags with each bag having individual releasably interlocking rib and groove element which are laterally spaced on confronting inner faces at the top and...
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4619021 |
Closure strip to be applied to bags
A closure strip, or zipper, for plastic bags or the like, in which the zipper is to be applied to bag material to form zipper bags. A generally conventional zipper configuration is used, and the...
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4618383 |
Method and apparatus for the manufacture of plastic bags having interlocking profile extrusions
In the manufacture of plastic bags having interlocking profiled extrusions for the closure, the extruded plastic profiles are applied to a moving web of film immediately after extrusion of the...
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4617683 |
Reclosable bag, material, and method of and means for making same
A reclosable bag, and material for making the bag, and wherein in one aspect extruded resiliently flexible plastic profiled reclosable fastener strip means for reclosable bags is located across the...
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4589145 |
Packaging material and package
A method of and apparatus for packaging a blocky product such as cheese, into a wrapped envelope package, with material especially adapted for said packaging and wherein a bottom face of the...
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4582549 |
Method and apparatus for producing bag making material having reclosable fasteners
Apparatus and method for making bag material from a continuous length of sheet. Side portions of the sheet are turned from opposite sides, and the sheet advanced through a joining station wherein...
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