Abstract: Waveguide nonlinear signal processors include transmission lines defined on a substrate. A plurality of varactors or pairs of varactors are situated along the transmission line and are in communication with a signal conductor of the transmission line and one or more control conductors. A processor controller is configured to provide a control signal to the one or more control conductors to select operational characteristics of the varactors or pairs of varactors. In some examples, the varactors are diodes and a control signal is provided to select a diode current-voltage characteristic in order to limit or clip an input signal to positive and/or negative amplitudes. Alternatively, a control signal is configured to provide a selected spectral transmission bandwidth or propagation delay by selecting a varactor capacitance-voltage characteristic.

Abstract: A method for attaching reclosable zipper to a package is provided. A pair of opposing film extensions are provided on the package above the seal at the package opening. The reclosable zipper is then inserted between the film extensions on the package and sealed thereto.

Abstract: A zipper strip for a reclosable package having a transverse zipper is provided. The zipper strip comprises a male interlocking profile and a female interlocking profile. Each profile includes an interlocking member and an integral web which defines a trailing flange. One or both of the profiles are provided with high compression members which allow one or both of the interlocking members to be sealed to thermoplastic film without being crushed or distorted.

Abstract: A reclosable package for a consumer product includes a zipper strip having male and female interlocking profiles. The former has a male interlocking member having a cross section in the shape of an asymmetric arrowhead. The latter has a female interlocking member in the form of two mutually curving members defining a channel therebetween. The male interlocking member is snappingly engaged into the channel to reclose the package. The asymmetric male interlocking member has an acute edge outward of the interior of the package, and a rounded edge facing the inside of the package. This asymmetry makes the package easier to open from within than from without.

Abstract: A peel seal zipper tape for reclosable plastic bags or packages includes a first and a second mutually interlocking zipper profile disposed on a top surface of a laminated film strip. The top surface is formed by a layer of a sealant material. The laminated film strip also has a bottom surface formed by a layer of a non-peel-seal material. In use, the laminated film strip is folded over enabling the zipper profiles to be interlocked with one another. In so doing, portions of the top surface of the laminated film strip face one another, so that they may be joined with a heat seal. The outside of the folded peel seal zipper tape, that is, the bottom surface of non-peel-seal material, is bonded to plastic sheet material from which reclosable plastic bags or packages are made. In the production of the bags or packages, the mutually facing portions of the laminated film strip are sealed together. The resulting seal gives a visual indication of having been broken when initially opened.