Abstract: An apparatus and method for reducing stress marks and pleats on a package. The apparatus includes the use of an elongated filling tube. The dimensions of the elongated filling tube reduce the stress on the film as it is being formed around the filling tube. Further, the dimensions of the elongated filling tube prevent the formation of pleats as the sealing jaws must travel a decreased distance to seal, and the filling tube cross section better resembles the final package.

Abstract: An easy open bag and method for making the same. A film is fed into a jaw assembly comprising a first seal jaw comprising a blade gap and a second seal jaw comprising a removable insert. The removable insert comprises a blade pin. When the first and second seal jaws are mated, a notch is formed. The film also comprises a score line in the outer layer. Upon tearing the notch the tear propagates along the score line. Thus, the package can be easily opened by initiating a tear at a tear notch.

Abstract: A food package that controllably vents when heated in the microwave, and method of making the same, is provided. A microwave susceptor is provided to heat-weaken a sealant or wall during microwave heating and allow the seal to controllably fail. The susceptor can be attached to the food package as an adhesive tab, incorporated directly into the food packaging material, or incorporated into a flexible sleeve around the food package. Optionally, flap guards can be provided as part of the flexible sleeve to guard against the ejection of food particles from the package when the seal fails.

Abstract: A method for making a multi-compartment microwavable package having one or more open or closed compartments within the package, and method and apparatus for manufacturing the same, constructed by modification to existing vertical form, fill and seal packaging machines. The invention involves producing a multi-compartment bag having an internal permeable wall between compartments from a single sheet of flexible packaging film. A food product can be placed into the first compartment and steam pack can be placed into the second compartment.

Abstract: A method for making a vertical stand up package having one or more open or closed compartments within the package, and method and apparatus for manufacturing the same, constructed by modification to existing vertical form, fill and seal packaging machines. The invention involves producing a flat bottom bag that can stand upright having an internal compartment from a single sheet of flexible packaging film. A different product can be placed into the compartment. The compartment can also be used as a dipping well. In one aspect a multi-compartment package can be made.

Abstract: A method for making a vertical stand up package having one or more open or closed compartments within the package, and method and apparatus for manufacturing the same, constructed by modification to existing vertical form, fill and seal packaging machines. The invention involves producing a flat bottom bag that can stand upright having an internal compartment from a single sheet of flexible packaging film. A different product can be placed into the compartment. The compartment can also be used as a dipping well. In one aspect a multi-compartment package can be made.

Abstract: A self-aligning zipper seal module adapted for quick change-out in a sealing carriage. The zipper seal module allows for a quick modification of a sealing carriage in order to accommodate different package dimensions. The module is stored and is installed in a closed and aligned position by use of an aligning handle. The module is easily installed or removed with a single tool and is designed to reduce the potential for operator injury by isolation from heat sources and by virtue of the aligning handle. The various seal facings of the module are oriented to equalize pressure on the facings during sealing and increase stripping efficiency. The zipper seal facings incorporate a novel insert design, thereby eliminating the need for stocking different sized facings to accommodate various bag widths. A return module of similar design is used to quickly return the sealing carriage to a standard configuration.