Abstract: The invention is a method, triggering unit, and system for activating an oxygen scavenging composition at high speeds. The triggering unit includes a plurality of UV lamps that can operate at increased temperatures and have high output intensites from about 10 to 35 mW/cm2. The triggering unit can activate films at speeds from about 20 to 100 fps. Mercury amalgam lamps are useful in the practice of the invention. The invention also includes a UV dose management system and film tensioning system that facilitates triggering at high film speeds. The UV dose management system controls the amount of UV exposure that the film receives so that the oxygen scavenging rate of the activated composition can be controlled.

Abstract: The invention is a method, triggering unit, and system for activating an oxygen scavenging composition at high speeds. The triggering unit includes a plurality of UV lamps that can operate at increased temperatures and have high output intensites from about 10 to 35 mW/cm2. The triggering unit can activate films at speeds from about 20 to 100 fps. Mercury amalgam lamps are useful in the practice of the invention. The invention also includes a UV dose management system and film tensioning system that facilitates triggering at high film speeds. The UV dose management system controls the amount of UV exposure that the film receives so that the oxygen scavenging rate of the activated composition can be controlled.

Abstract: The invention is a method, triggering unit, and system for activating an oxygen scavenging composition at high speeds. The triggering unit includes a plurality of UV lamps that can operate at increased temperatures and have high output intensites from about 10 to 35 mW/cm2. The triggering unit can activate films at speeds from about 20 to 100 fps. Mercury amalgam lamps are useful in the practice of the invention. The invention also includes a UV dose management system and film tensioning system that facilitates triggering at high film speeds. The UV dose management system controls the amount of UV exposure that the film receives so that the oxygen scavenging rate of the activated composition can be controlled.

Abstract: A method of opening a bag mounted on a tape includes the steps of providing a bag including a first panel, a second panel, a first bag edge, second bag edge, a bag bottom, and a bag mouth; gripping the bag between a first means for vacuumizing and a second means for vacuumizing; and moving the first and second means for vacuumizing such that the bag disengages from the tape, and the bag mouth opens. The first and second means for vacuumizing are activated before or during the gripping step, or after these means have been moved, but before the bag mouth opens. An apparatus for transporting a bag, and loading a bag, are also disclosed.

Abstract: A method of opening a bag mounted on a tape includes the steps of providing a bag including a first panel, a second panel, a first bag edge, a second bag edge, a bag bottom, and a bag mouth; gripping the bag between a first means for vacuumizing and a second means for vacuumizing; and moving the first and second means for vacuumizing such that the bag disengages from the tape, and the bag mouth opens. The first and second means for vacuumizing are activated before or during the gripping step, or after these means have been moved, but before the bag mouth opens. An apparatus for transporting a bag, and loading a bag, are also disclosed.

Abstract: A method of opening a bag includes the steps of providing a bag including a first panel, a second panel, a first bag edge, a second bag edge, a bag bottom, and a bag mouth; holding the bag mouth between a first means for vacuumizing and a second means for vacuumizing; moving the first and second means for vacuumizing such that the bag mouth disengages from the tape; activating the first and second means for vacuumizing to draw a vacuum through said means; and further moving the first means for vacuumizing such that the bag mouth opens. In an alternative method, instead of holding the bag mouth with the vacuumizing means, the vacuumizing means can be brought into close proximity to the bag mouth, and activated to draw each panel of the bag mouth to a respective vacuumizing means. Thereafter, both vacuumizing means can be moved upward, and the bag mouth opened. An apparatus for opening a bag is also disclosed.

Abstract: The present invention relates to an apparatus, automated system and method for packaging food products. The system has a novel arrangement for transferring the product from a receiving station to a bagging station which arrangement includes mechanical devices for pulling a bag over the product. The system further includes a unique platen system for transporting the bagged product to various stations where it is vacuumized, sealed, trimmed, and finished. Optionally, the system includes a plurality of needles for injecting a fluid such as a basting fluid into the product.

Abstract: Apparatus for atmosphere-modifying and sealing individual trays includes a film disposing roller disposed closely adjacent the top of the tray to define a nip region and an elongated gas injection nozzle spanning the nip region for injecting gas through the nip region between the film and the tray. A split conveyor belt advances the trays past the film disposing roller to a sealing unit utilizing band sealers for the longitudinal tray edges and reciprocal "hot bar" sealer for the leading and trailing tray edges. The gas injection nozzle injects the gas substantially perpendicular to the advancing direction, down and into the individual trays. An optional second gas nozzle provides a gas flow curtain across the tray leading edge.