Patent References 3336845 3676251 Opening means for a packaging means of flexible material Opening means for packaging containers Process for manufacturing dispenser-container containing wet and dry contents Pouring edge on packing containers Re-sealable label flap Sucking hole structure for an aluminium foil beverage container Patent #: 4858766 InventorsApplicationNo. 443467 filed on 11/29/1989US Classes:156/514, And securing separate part over hole or aperture156/252, Perforating lamina156/253, Subsequent to assembly of laminae229/103.1, Combined with drinking tube (e.g., straw)229/123.2, Including tearing or breaking means for opening a nonunitary closure or releasing a nonunitary securing element (i.e., the closure or securing element is not of one-piece construction with the box)229/125.15For an access opening formed by a cut-out in a box wallExaminersPrimary: Weston, CalebAttorney, Agent or FirmInternational ClassB32B 031/18Foreign Application Priority Data1988-11-30 JPAbstractA device for forming webs used for packaging containers with and without a pull-tab including, along the conveyance path of a web conveyed at a constant interval, a punch hole opening section for opening liquid-outlets, a strip tape pasting section which closes punch holes opened on a web with a wide strip tape or pastes narrow strip tape on a web having no punch holes, and a pull-tab pasting section having a pull-tab tape cutting and heating depositing member which cuts and heat-deposits a pull-tab on the web provided on the punch holes. Either a wide strip tape or a narrow strip tape is selectively supplied to the strip tape pasting section, and a pull-tab tape is supplied to the pull-tab pasting section. The punch hole opening section and the pull-tab pasting section can be inactivated. Thus, containers with and without a pull-tab can be manufactured by a single web forming device.Field of SearchPunching and bonding pressure application by punchSeparate cutting of separate sheets or webs One web only Means making hole or aperture in part to be laminated And securing separate part over hole or aperture Perforating lamina Subsequent to assembly of laminae Package opening device (e.g., tear strip) With extruding, drawing, or attenuating Securing Securing With application of adhesive And heat sealing With work advance between application of adhesive and securing Application of adhesive to moving work By direct application of fluid Of moving work And folding Means to facilitate opening of container With application of adhesive or securing by adhesive Tear strip or piercer TEAR APERTURES FOR ROLL, STRIP, OR SHEET | |