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5435864 |
Reclosable zipper with tamper evident feature
A plastic bag having a reclosable plastic zipper is provided with a tamper-evident, non-reclosable peel seal formed by coextruding an adhesive onto a side strip adjacent to the interlocking zipper....
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5431760 |
Zipper slider insertion through split track
In a continuous bag-making process, the film and zipper track moves intermittently through a bag machine in a continuous stream, so there is no end to the zipper track on which the slider can be...
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5425825 |
Reclosable zipper with tamper evident feature
A plastic bag having a reclosable plastic zipper is provided with a tamper-evident, non-reclosable peel seal formed by applying an adhesive to a treated strip adjacent to the interlocking zipper....
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5425911 |
Method for manufacture of integral reclosable bag
A method of forming a plastic film with at least one closure element utilizes a die having a removable lower die lip with grooves in the shape of the closure elements and a choker bar located in...
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5419793 |
Method for forming closure elements with mushroom-shaped cross sections on a heat-shrinkable plastic web
A method and apparatus for wrapping edges of a web around rod inserts to form closure elements or profiles on the web.
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5411692 |
Integral reclosable bag die assembly
An integral reclosable bag die assembly for extruding a bag film and a closure profile integrally connected thereto, includes a die including an inlet port for receiving molten polymeric material,...
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5405561 |
Process for microperforating zippered film useful for manufacturing a reclosable zippered bag
A process for providing microperforations in a zippered film useful for manufacturing reclosable zippered produce bags including the steps of (a) providing a web of thermoplastic film with...
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5403413 |
Apparatus and method for manufacturing surface fastener bands
An apparatus and method for manufacturing surface fastener bands having opposite end portions provided with mating multiple fastener elements including a pair of grippers for moving the opposite...
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5401555 |
Cloth
A cloth composed of first and second threads, the first threads being dyeable by a first dye and being much more exposed on a front surface of the cloth than a back surface thereof, the second...
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5383989 |
Method and apparatus for manufacturing reclosable plastic bags utilizing pre-heated zipper
A method for manufacturing reclosable plastic bags or packages includes the step of presoftening the complete length of the zipper before it is introduced into the space between two plies of...
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5379538 |
Dual-function label
An adhesive backed label is perforated or scored along its mid-line. The same label either can be used as a standard adhesive label or it can be folded along its midline to capture the ends of a...
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5366294 |
Recloseable package having recloseable profile strips with a heat barrier
A recloseable package having recloseable profile strips with a heat barrier is disclosed. The profile strips have flange elements and recloseable , mated profile strips. The package is made by...
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5352307 |
Method of producing a breast prosthesis
The invention relates to a method for producing a breast prosthesis in which a two-component addition cross-linkable soft elastic silicone rubber composition is introduced into a synthetic resin...
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5352308 |
Self-locking agent
A self-locking agent for a fastening device comprises a microencapsulated adhesive composition comprising the following constituents (a) to (c): (a) an epoxy compound having at least two epoxy...
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5334127 |
Reclosable plastic bags made with open mouth and method of making open mouth bags
A method and apparatus for forming recloseable plastic bags having engageable mating profiles wherein the bags are made to have an initially open mouth. The profiles which are made to be in an...
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5322579 |
Method of forming side seams for zippered bags or packages
A method for manufacturing reclosable plastic bags or packages, wherein sections of zipper profiles are pre-softened at intervals equal in length to the width of the bags or packages to be...
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5279693 |
Welding thermoplastic material with a laser
An apparatus for forming a weld between first and second thermoplastic materials in which the softening temperature of the second thermoplastic material is lower than that of the first...
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5276950 |
Closure strips for bags
A string zipper, with no mounting flanges, is welded to bag material for forming zipper bags. The zipper material is fed from a driven unwind and the bag material receives the zipper material....
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5273595 |
Apparatus using removable profile wedges for manufacture of reclosable bag
The present invention relates to the integral extrusion of closure profiles and a film through a film die. The present invention provides an apparatus for integrally extruding a film and closure...
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5259904 |
Oscillating grip strip for recloseable plastic bags and method and apparatus for making the same
A plastic bag with a recloseable zipper-type closure is formed with grip strips on its lips to ease the opening of the bags. The grip strips are extruded from a grip strip extruder which is moved...
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5252281 |
Apparatus and method for manufacture of a multi-colored closure member of a closure profile
An apparatus for producing a multi-colored closure member of a closure profile includes a die plate for receiving melted materials having different colors at a die plate input port and extruding...
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5242516 |
Co-extruded profile strip containing lateral webs with adhesive subdivided into ribs
A profile strip has a closure element, made of a first material, which contains a base surface, and lateral webs or flanges extending from the base surface on each side of the closure element. An...
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5240543 |
Apparatus for and method of seating a fastener insert in a honeycomb panel
A fastener insert attached to a mounting fixture is inserted into a hole drilled in a honeycomb panel. The mounting fixture has a rod with a disc at an end depending from a base and a chimney...
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5230851 |
Process of manufacturing a refastenable mechanical fastening system
A process for making a refastenable mechanical fastening system, made of free formed prongs joined to a substrate. The prongs taper and are nonperpendicularly oriented relative to the plane of the...
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5198055 |
Method of forming recloseable packages, profiles used therein, and packages produced thereby
A method of forming a recloseable package using special profile strips, the strips themselves and a resulting package are disclosed. The profile strips have a flange element and a recloseable means...
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5188461 |
Packing, method of manufacturing same, and strip material therefor
A packing comprising first and second opposed surfaces in a closure area of the packing has profiled portions secured to and extending over each of the opposed surfaces, which profiled portions are...
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5180599 |
Peelable adhesive-based package seal and method of making same
A process for forming an adhesive-based peelable, hermetic seal for a package in which the adhesive ruptures uniformly when the package is opened. A first polyacrylonitrile packaging film has a...
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5167746 |
Replacement crutch tip method
A method of securing and enhancing a crutch tip for entertainment and psychological relief, wherein a shoe is provided with a conical plug removed from the shoe defining a conical opening therein,...
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5152613 |
Plastic film zipper bag having straightened heat seals
In the manufacture of thermoplastic film zipper bags and the like heat sealing the film to the zipper produces a seal line that shrinks, resulting in unsightly apearance. A system and method are...
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5141577 |
Closure for reclosable thermoplastic containers
A closure for reclosable plastic containers including male and female closure elements having extremities which are suited for interlocking with one another, in which the interlocking extremities...
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5131121 |
Protruding end stops for plastic reclosable fastener
A thermoplastic bag having a zipper that is operated by a slider is provided with end stops that are integral with the ends of the zipper and prevent the slider from going off past the end of the...
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5116301 |
Method of making a double zipper pouch
A double zipper pouch having first and second pockets adjacent one another and with a common wall portion, each pocket having an opening for receiving contents such as identification papers. The...
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5116563 |
Process for producing a mechanical fastener
An improved process for forming a mechanical fastening prong and the prongs produced thereby. The prongs are produced by deposition of a heated, thermally sensitive material onto a substrate, which...
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5096516 |
Method of making dual reuseable pouches
Dual flexible plastic pouches and a method of making the pouches where the pouches are reuseable and reclosable and have a double fastener strip arranged along the center between the pouches, the...
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5066444 |
Process and apparatus for reducing color contamination in the process recycle of zippered thermoplastic bags
Disclosed are a process and apparatus for eliminating the problem of color contamination during product recycle in the manufacture of reclosable thermoplastic bags having zippers of a color...
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5063639 |
Zippered closure for packages
Zippered material for packages comprising a zipper strip having longitudinally extending complementary reclosable interlockable zipper profiles with a web separating the profiles. In one aspect,...
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5059189 |
Method of preparing adhesive dressings containing a pharmaceutically active ingredient
A dressing comprising a flexible backing member and a pressure sensitive adhesive layer. The adhesive layer comprises one or more polyisobutylenes, elastomers, and one or more moisture absorbing,...
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5053091 |
Method and apparatus for manufacturing plastic film with integral interlocking closure members incorporating shape conforming cooling shoes after extrusion
A method and apparatus for use in extruding a plastic film with integral interlocking closure members. A flat plastic film and integral closure members are extruded through a single die opening. An...
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5047002 |
Apparatus and method for making Z-folded zippered film
A method and apparatus for producing rolls of thermoplastic film stock wherein zipper elements are interlocked for structural support while the web is open, resembling a "Z" in cross-section, and...
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5047102 |
Adhesion of suction cup mounted devices on a porous wall
Adherence of suction cup-supported devices to a wall or other surface is improved by adhesively applying a patch made of a film or sheet of smooth, non-porous material to the wall at places where...
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5036643 |
Form, fill, seal and separate packaging machine for reclosable containers including means for applying zipper to web
An improved form, fill, seal and separate packaging machine for reclosable containers is accomplished by a plurality of stations disposed along a path of travel of a thermoplastic web including...
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5036645 |
Method of making a recloseable package
A flexible recloseable package wherein the enclosed product is supported on a rigid backing board and the package includes a recloseable seal strip mounted on an access edge of the backing board....
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5023122 |
Easy open bag structure
A reclosable plastic film for a bag and the method and mechanism for making the same. The film may be employed for making various types of bags, but in each case the arrangement provides for a tear...
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5009633 |
Method of manufacturing an outer vacuum cleaner bag for an upright cleaner
A method of manufacturing the outer cloth bag for an upright vacuum cleaner in which the bag material of a predetermined width is unwound from a reel an fed through guides, material folders and a...
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5009828 |
Method of forming a reclosable container with grip strip
A method of forming a plurality of small ridges located in a strip across the lip of a reclosable plastic bag is provided. The method produces a wide ridged surface area to permit ready gripping of...
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4999067 |
Method for making a hermaphrodite hook and loop fasteners
A method is provided for making a hermaphrodite hook and loop fastener including the steps of molding a hook ribbon having mounting projections and shoulders on opposite sides of the hook ribbon,...
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4994128 |
Method for manufacturing film rolls
A roll film (1) rolled around a winding core (2), having resin made fastener claws (3) and (4) of an engagement tool along with both edges of the film. The claws are melt-bonded to the film. The...
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4985192 |
Methods and apparatus for producing fastener profiles, and products incorporating the same
An extrusion die for producing a fastener profile having a male profile portion and an alignment rib spaced on each side thereof has a first peripheral slot to produce the male profile portion and...
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4976811 |
Apparatus for sealing film including sealing head with wedge-shaped lower-portion
Apparatus for manufacturing plastic film stock material including a sealing head utilizing heated air for continuous welding of reclosable plastic closure strips of plastic film. The sealing head...
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4969967 |
Method of manufacturing packing and strip material therefor
A packing comprising first and second opposed surfaces in a closure area of the packing has profiled portions secured to and extending over each of the opposed surfaces, which profiled portions are...
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