Hartness International, Inc. Patent applications |
Patent application number | Title | Published |
20110061339 | Shrink Film Applying Apparatus Having Independently Drivable Flight Bar Assemblies - A shrink film applying apparatus includes an article feed for feeding articles for shrink-wrapping at line pressure; a wrapping conveyor driven at a wrapping speed through a wrapping zone, the wrapping conveyor receiving articles from the article feed. First and second films are supplied to the wrapping zone. A plurality of flight bars are individually driven in a path at a variable speed. A sealing mechanism within the wrapping zone seals the first film to the second film at contact points to form a circumferential film unit substantially surrounding grouped articles within loops of second film and a corresponding portion of the first film, the film unit being shrinkable about the grouped articles to form a package. Related methods and subassemblies of the apparatus are disclosed. | 03-17-2011 |
20110056175 | Heat-Shrinkable Holder for Articles, Heat-Shrinkable Package of Articles, Heat-Shrinkable Sleeve for Articles and Method and Device for Packaging and Sleeving Articles - A heat-shrinkable holder for securing articles, a package securing such articles using heat-shrinkable sheets, a shrinkable sleeve, and a method and device for securing such articles using heat-shrinkable sheets and sleeves are disclosed. The holder is constructed so that it is separable when desired, and may comprise the labeling or the like for an article to be packaged. Releasable fasteners such as adhesives, heat seals, and/or perforations may be employed on the sheets. If desired, articles may be individually sleeved with a heat shrinkable film blank portion, which may function as labeling. | 03-10-2011 |
20100326015 | FLIGHT BAR ASSEMBLY, APPARATUS AND METHODS FOR NESTABLE COLLATION OF OBJECTS - Apparatus, flight bar assemblies, and methods are disclosed for nesting objects into a substantially staggered arrangement. Such nesting may be done in a nesting zone of a machine, for example, just upstream of a shrink wrapping machine. The nested arrangement allows the grouping of nested objects to be shrink-wrapped without use of trays or cardboard blanks if desired. The flight bar assemblies may include movable spacers for orienting rows of objects before, during, and after nesting. Lane dividers may be provided having lengths corresponding to a contour of an outer guide and cam surface, cooperating with the lane dividers to selectively urging the rows of objects inward in an organized fashion to allow efficient and reliable nesting. | 12-30-2010 |
20080272013 | HEAT-SHRINKABLE HOLDER FOR ARTICLES, HEAT-SHRINKABLE PACKAGE OF ARTICLES, HEAT-SHRINKABLE SLEEVE FOR ARTICLES, AND METHOD AND DEVICE FOR PACKAGING AND SLEEVING ARTICLES - A heat-shrinkable holder for securing articles, a package securing such articles using heat-shrinkable sheets, a shrinkable sleeve, and a method and device for securing such articles using heat-shrinkable sheets and sleeves are disclosed. The holder is constructed so that it is separable when desired, and may comprise the labeling or the like for an article to be packaged. Releasable fasteners such as adhesives, heat seals, and/or perforations may be employed on the sheets. If desired, articles may be individually sleeved with a heat shrinkable film blank portion, which may function as labeling. | 11-06-2008 |