And Means To Advance Package During Closing Patents (Class 53/370.5)
  • Patent number: 6895732
    Abstract: A packaging apparatus includes a pair of rolls forming a nip through which two web portions are passed with an item to be packaged between the web portions. The rolls include resiliently compliant roll portions that deform to accommodate the thickness of the item, and the roll portions press the web portions to seal them together in peripheral regions surrounding the item and to center the item between the webs in the thickness direction. The apparatus also includes side seal devices that traverse inwardly toward the item to seal the webs together close to the item's opposite side edges to prevent the item from laterally shifting. The web portions may have cohesive disposed on their facing surfaces such that the web portions adhere to each other with pressure but tend not to adhere to the packaged item or other surfaces.
    Type: Grant
    Filed: September 9, 2002
    Date of Patent: May 24, 2005
    Assignee: Sealed Air Corporation (US)
    Inventors: Laurence B. Sperry, Anthony O. Davlin, Eric A. Kane, Jesse S. Drake
  • Patent number: 6282868
    Abstract: Objects are conveyed to a strapping position (U) along a conveying path (F), are strapped in this strapping position and are conveyed away from it. For the strapping a strapping material (4) is positioned curtain-like across the conveying path (F) and is drawn along by an object to be strapped such that it is placed around the downstream side of the object and can be positioned on the upstream side of the object and be connected and separated producing a connection point in the strapping closed around the object and in the strapping material (4) again extended across the conveying path for the next object to be strapped. For producing strappings with either one connection point or with two connection points and for allowing the strapping material to be supplied from only one side of the conveying path, shifting steps are carried out alternatingly with strapping steps or with groups of strapping steps in which shifting steps the strapping material (4) is shifted actively across the conveying path (F).
    Type: Grant
    Filed: November 15, 1999
    Date of Patent: September 4, 2001
    Assignee: Ferag Verpakkingstechniek B.V.
    Inventor: Henk De Vlaam