Abstract: A bag can include walls formed of a material having multiple layers, which can include a paper layer located between an outer layer and an inner layer. The outer layer can be formed from a nylon material and the inner layer can be formed from a polyolefin material, and the bag can exhibit grease-resistant properties. The bag can be formed into a variety of configurations, such as a sewn-open-mouth configuration in which a stitching element extends through a wall of the bag or a variety of pinch-type closure configurations.

Abstract: A bag can include walls formed of a material having multiple layers, which can include two polyolefin layers and a paper layer. The bag can be formed into a sewn-open-mouth configuration in which a stitching element extends through a wall of the bag. The bag can include a grease-resistant seal that substantially prevents grease from escaping from the bag via an opening in the wall through which the stitching element extends.

Abstract: A bag can include walls formed of a material having multiple layers, which can include two polyolefin layers and a paper layer. The bag can be formed into a sewn-open-mouth configuration in which a stitching element extends through a wall of the bag. The bag can include a grease-resistant seal that substantially prevents grease from escaping from the bag via an opening in the wall through which the stitching element extends.

Abstract: Various methods and devices are provided for attenuating RF signals propagating within a waveguide. In particular, a plurality of coaxial probes are incorporated into the waveguide for the purpose of attenuating X-band RF signals. In one embodiment, a 7-bit, 3 dB linear digital attenuator is provided having a waveguide in a racetrack configuration. Coaxial probes in communication with the waveguide are adapted to couple energy to and from a signal traveling within the waveguide. The attenuator can also include switches adapted to reflect coupled energy back into the waveguide or pass the coupled energy to a resistive termination.

Abstract: A bag can include walls formed of a material having multiple layers, which can include a paper layer located between an outer layer and an inner layer. The outer layer can be formed from a nylon material and the inner layer can be formed from a polyolefin material, and the bag can exhibit grease-resistant properties. The bag can be formed into a variety of configurations, such as a sewn-open-mouth configuration in which a stitching element extends through a wall of the bag or a variety of pinch-type closure configurations.

Abstract: A bag having a reclosable sealer and methods of forming and using the same are provided. The bag, for example, can include a tube body having a plurality of laminated layers. A reclosable sealer can be attached to a first wall of the tube body. When the bag is in an open bag position, a first portion of the reclosable sealer is separated from a second portion of the reclosable sealer. When the reclosable sealer is in the closed seal position, the first portion of the reclosable sealer contacts the second portion of the reclosable sealer forming a seal to thereby allow the bag to be readily opened and closed. Peripheral portions of the bag can remain unsealed after initial opening when the reclosable sealer is in the closed seal position to indicate that initial opening has occurred and that tampering with the bag may have occurred.

Abstract: Various methods and devices are provided for attenuating RF signals propagating within a waveguide. In particular, a plurality of coaxial probes are incorporated into the waveguide for the purpose of attenuating X-band RF signals. In one embodiment, a 7-bit, 3 dB linear digital attenuator is provided having a waveguide in a racetrack configuration. Coaxial probes in communication with the waveguide are adapted to couple energy to and from a signal traveling within the waveguide. The attenuator can also include switches adapted to reflect coupled energy back into the waveguide or pass the coupled energy to a resistive termination.

Abstract: An embodiment of a bag includes a bag body having opposing bag ends and an inner face of an outer ply abuttingly adhered to an outer face of an inner ply with an adhesive. The bag can also include the outer ply having an inner face of a grease-resistant film abuttingly adhered to an outer face of a paper layer with an adhesive. The bag can further include the inner ply having a film of one or more layers having a grease-resistant material adapted to advantageously closingly seal at least one of the bag ends. An adhesive advantageously adheres a portion of a bag end to another portion of the same bag end to closingly seal the bag end. Embodiments of other bags, bag closures, and methods of assembly, positioning, using, and constructing a bag are also provided.

Abstract: An embodiment of a bag includes a bag body having opposing bag ends and an inner face of an outer ply abuttingly adhered to an outer face of an inner ply. The bag can include the outer ply having an inner face of a grease-resistant film abuttingly adhered to an outer face of a paper layer. The bag can further include the inner ply having a film of one or more layers having a grease-resistant material adapted to advantageously closingly seal at least one of the bag ends. Embodiments of other bags, bag closures, and methods of assembly, positioning, using, and constructing a bag are also provided.

Abstract: A bag having a reclosable sealer and methods of forming and using the same are provided. The bag, for example, can include a tube body having a plurality of laminated layers. A reclosable sealer can be attached to a first wall of the tube body. When the bag is in an open bag position, a first portion of the reclosable sealer is separated from a second portion of the reclosable sealer. When the reclosable sealer is in the closed seal position, the first portion of the reclosable sealer contacts the second portion of the reclosable sealer forming a seal to thereby allow the bag to be readily opened and closed. Peripheral portions of the bag can remain unsealed after initial opening when the reclosable sealer is in the closed seal position to indicate that initial opening has occurred and that tampering with the bag may have occurred.

Abstract: A bag having a reclosable sealer and methods of forming and using the same are provided. The bag, for example, can include a tube body having a plurality of laminated layers. A reclosable sealer can be attached to a first wall of the tube body. When the bag is in an open bag position, a first portion of the reclosable sealer is separated from a second portion of the reclosable sealer. When the reclosable sealer is in the closed seal position, the first portion of the reclosable sealer contacts the second portion of the reclosable sealer forming a seal to thereby allow the bag to be readily opened and closed. Peripheral portions of the bag can remain unsealed after initial opening when the reclosable sealer is in the closed seal position to indicate that initial opening has occurred and that tampering with the bag may have occurred.

Abstract: A bag having a reclosable sealer and methods of forming and using the same are provided. The bag, for example, can include a tube body having a plurality of laminated layers. A reclosable sealer can be attached to a first wall of the tube body. When the bag is in an open bag position, a first portion of the reclosable sealer is separated from a second portion of the reclosable sealer. When the reclosable sealer is in the closed seal position, the first portion of the reclosable sealer contacts the second portion of the reclosable sealer forming a seal to thereby allow the bag to be readily opened and closed. Peripheral portions of the bag can remain unsealed after initial opening when the reclosable sealer is in the closed seal position to indicate that initial opening has occurred and that tampering with the bag may have occurred.

Abstract: A bag having a reclosable sealer and methods of forming and using the same are provided. The bag, for example, can include a tube body having a plurality of laminated layers. A reclosable sealer can be attached to a first wall of the tube body. When the bag is in an open bag position, a first portion of the reclosable sealer is separated from a second portion of the reclosable sealer. When the reclosable sealer is in the closed seal position, the first portion of the reclosable sealer contacts the second portion of the reclosable sealer forming a seal to thereby allow the bag to be readily opened and closed. Peripheral portions of the bag can remain unsealed after initial opening when the reclosable sealer is in the closed seal position to indicate that initial opening has occurred and that tampering with the bag may have occurred.

Abstract: A continuous solvent extraction-steam distillation process for the recovery of aromatic hydrocarbons having boiling points in the range of about 80.degree.C. to about 175.degree.C. from a feedstock containing aliphatic hydrocarbons and said aromatic hydrocarbons comprising the following steps:A. introducing the feedstock into an extraction zone at about the midpoint thereof;B. introducing a mixture of water and solvent into the extraction zone at about the top of said extraction zone, said solvent being a water-miscible organic liquid having a boiling point of at least about 200.degree.C.;c. introducing reflux hydrocarbons into the extraction zone at about the bottom thereof;D. contacting the feedstock in the extraction zone with the mixture of water and a solvent, the water phase of step (j), and the reflux hydrocarbons to provide an extract comprising aromatic hydrocarbons, reflux aliphatic hydrocarbons, solvent, and water and a raffinate comprising essentially aliphatic hydrocarbons;E.