Abstract: The invention is a process for manufacturing an irradiation cross-linked molded article by utilization of molding apparatus wherein at least a portion of the molding apparatus is separable and capable of withstanding irradiation.

Abstract: The invention is a process for forming a reticulated web net oriented from a perforated film wherein the perforated film is produced by thermoforming projections or pips on an endless perforated surface and subsequently skiving the pips off flush with the film, said thermoforming, skiving and orientation all taking place in a continuous fashion.

Abstract: Methods of making network structures include forming on one side of a sheet of thermoplastic polymer a plurality of parallel continuous main ribs and forming on the other side of the sheet in a different direction a plurality of parallel discontinuous tie ribs. The tie ribs are discontinuous in the areas where they cross over the main ribs to eliminate any increased thickness at the cross-over points of the main ribs and tie ribs. The ribbed sheet thus formed is drawn in either one direction or in two preferably perpendicular directions to open the sheet into a network structure and to orient the main ribs and preferably also to orient the tie ribs.

Abstract: Methods of making network structures include forming on one side of a sheet of thermoplastic polymer a plurality of parallel continuous main ribs and forming on the other side of the sheet in a different direction a plurality of parallel discontinuous tie ribs. The tie ribs are discontinuous in the areas where they cross over the main ribs to eliminate any increased thickness at the cross-over points of the main ribs and tie ribs. The ribbed sheet thus formed is drawn in either one direction or in two preferably perpendicular directions to open the sheet into a network structure and to orient the main ribs and preferably also to orient the tie ribs.

Abstract: Stabilized fabrics include a woven, knitted or tufted fabric layer bonded to a stabilizing layer of staple or continuous filament fibers by an air-permeable bonding layer of thermoplastic material. The bonding is carried out under heat and pressure sufficient to melt the bonding layer and have it penetrate into the fibers of both the fabric layer and the stabilizing layer.

Abstract: Methods of making network structures include forming on one side of a sheet of thermoplastic polymer a plurality of parallel continuous main ribs and forming on the other side of the sheet in a different direction a plurality of continuous parallel tie ribs, with the ratio of cross-sectional areas of the main ribs to the tie ribs preferably being 1.5:1 or greater and the ratio of the height of the main ribs to the thickness of the webs between the main ribs being 3:1 or greater. The ribbed sheet thus formed is drawn in either one direction or in two preferably perpendicular directions to open the sheet into a network structure and to orient the main ribs and preferably also to orient the tie ribs.

Abstract: It has been found that reticulated web structures having a uniform thickness, soft hand and high strength-to-weight ratio comprising a first set of oriented substantially parallel flat filaments running in the machine direction intersecting a second set of oriented substantially parallel flat filaments running in the cross-machine direction, where the said filaments all have a rectangular cross-section, with the width of the filaments being at least 1.

Abstract: The invention is a process and apparatus for biaxially blow molding hollow plastic articles to provide a finished neck of axially oriented material in the molding step. One end of a plastic parison is placed over a blow pin positioned between separable mold halves. The parison is then axially oriented and necked down over said blow pin. A crammer sleeve is positioned over the blow pin to cram axially oriented material into the neck finishing cavities when the molds are closed over said blow pin and parison.

Abstract: Methods of making network structures include forming on one side of a sheet of thermoplastic polymer a plurality of parallel continuous main ribs and forming on the other side of the sheet in a different direction a plurality of parallel discontinuous tie ribs. The tie ribs are discontinuous in the areas where they cross over the main ribs to eliminate any increased thickness at the cross-over points of the main ribs and tie ribs. The ribbed sheet thus formed is drawn in either one direction or in two preferably perpendicular directions to open the sheet into a network structure and to orient the main ribs and preferably also to orient the tie ribs.

Abstract: The invention is a space frame seat assembly that has utility as an automobile bench seat or the like, said assembly comprising a unitary space frame that can be injection molded in a simple two piece mold, said frame comprising a plurality of unique, repetitive structural cells, said frame being reinforced in a sandwich construction and having integral or detachable spring structure wherein the entire assembly is further foamed in place to create the finished assembly.

Abstract: The invention is a high speed automatic platemaking process and apparatus for making photopolymer relief printing plates from photo transparencies. The invention eliminates lost time and motion by performing critical platemaking functions such as photopolymer printing plate lamination and back exposure in one continuous pass. Other platemaking procedures are likewise performed in combined steps and in a particular sequence to expedite plate preparation.

Abstract: The invention is a process for biaxially blow molding hollow plastic articles to provide a finished neck of axially oriented material in the molding step. One end of a plastic parison is placed over a blow pin positioned between separable mold halves. The parison is then axially oriented and necked down over said blow pin. A crammer sleeve is positioned over the blow pin to cram axially oriented material into the neck finishing cavities when the molds are closed over said blow pin and parison.

Abstract: The invention is an improved liquid photopolymer applicator means for use on photorelief printing platemaking machines. The applicator means comprises a substantially vertical plate which acts as both the rear wall of the applicator means and as a doctor blade for uniformly spreading the photopolymer. The remaining sides of the applicator means form a scoop means which is substantially movably connected to the vertical plate to define a bottom slot-like opening immediately in front of the vertical plate to discharge the photopolymer at a controlled rate, said photopolymer being doctored by the vertical plate as the entire assembly traverses the length of the platemaking machine. The entire assembly is a part of a movable carriage which traverses the length of the platemaking machine, said carriage being movably mounted to said platemaking machine upon a shim which determines the thickness of the photopolymer plate desired, and said carriage driven by an adjustable gear means.

Abstract: The invention is a dual purpose container and lid for foods, cosmetics, medicines, nursery products and the like which is convertible to a flower pot. The container body and lid incorporate structural features which facilitate removal of the primary product from the container and utilization of the container for potting, the lid of said container being removable for use as a base for said container.

Abstract: The invention is a plastic container and resealable plastic lid interlock which provide centering and positive sealing of the lid with respect to the container as well as sufficient structural support to allow the container and lid to be processed on existing filling, labeling, and packaging equipment. The invention provides a double interlock, a prying flange for foolproof container opening, positive line contact sealing insured by the double interlock and a stackproof shear resistant lip.

Abstract: The invention is apparatus for laying film in wrinkle-free fashion on a flat surface. A protective film is automatically laid down on a flat rigid vacuum support plate capable of having an image bearing transparency thereon when the instant invention traverses the rigid support plate in one pass in one direction. A photosensitive material and a backing material may then be subsequently supplied to the rigid support plate upon a second pass in the reverse direction to provide a photopolymer plate which may be exposed through a transparency covered by said first film. The resulting photopolymer plate having hardened relief image areas may then be further treated to provide a printing plate.

Abstract: The invention is a drive mechanism for a rotary vacuum forming multifaced drum to essentially match the surface speed of said drum to the constant speed of a web of film issuing from a film die. The instant invention provides apparatus to continuously vary the rotational speed of a multifaced vacuum forming drum with any number of faces, such that if a web of hot film were extruded at a constant rate, the rotational speed of the drum would vary as required to accept the film at a constant rate to provide an essentially uniform thickness of material on the surface of the drum for thermoforming.