Method and apparatus for producing rupturable areas in thermoplastic film wherein said film is used to make closed flexible containers or packages that are easily ruptured for the release of contents contained therein. The apparatus is comprised of a male mold portion and a female mold portion having the film interposed therebetween. Application of heat and pressure to the film by the male and female mold portions cause the plastic film to extrude outwardly from the impression area thereby formi...

Linear copolyesters are contemplated having the following repeating units: ##STR1## in their backbone structure. These polyesters have utility in the packaging industry for packaging various comestibles.

In apparatus for packaging objects by enclosing them in a tube of packaging material, which tube presents two projecting longitudinal flaps which are subsequently welded together to form a longitudinal seam, a flat nozzle is inserted between the flaps ahead of the longitudinal seam welding location and is connected to a suction source for extracting air from each package being formed.

A composite strip for producing a sterile package comprises two superposed individual strips, the inner surfaces of which are sterile, and at least one of which comprises a thermoplastic material. The thermoplastic material is such that after the separation of the two individual strips, the individual strip comprising thermoplastic material can be sealed to a part of itself or to the other strip by welding or glueing with the application of heat and pressure. A first part of one individual strip...

The invention relates to materials and method for forming composite packages comprising a first flexible material (11) and a second relatively rigid material (12) which are connected together without the use of additional connecting materials. The connection is achieved by causing the flexible material (11) to be deformed to cooperate in tension with interrupted zones (19) of the relatively rigid material (12). Many different packages may be formed for a variety of uses but the invention is part...

In an arrangement for producing packages, which are used as feeding packages for twisting, it is provided that, directly in front of a cross-winding device of a wind-up device, a processing device is arranged which is controlled by yarn detectors. The yarn detectors monitor one yarn resepctively, which together form a double yarn, which is wound on the package. A yarn separating device or a device for connecting the two yarns is used as the processing device.

A receptacle for stacked support of electronic packages provides ready address/selection of each package by disposing vertically spaced receptacle contact sets in offset relation longitudinally of an elongate package-receiving channel. Package stacking is facilitated by a fixed support for a lower package and a further support selectively movable into the package-receiving channel for supporting an upper package. Zero insertion force is provided by an actuator operable to displace receptacle con...

A composite strip for producing a sterile package comprises two superposed individual strips, the inner surfaces of which are sterile, and at least one of which comprises a thermoplastic material. The thermoplastic material is such that after the separation of the two individual strips, the individual strip comprising thermoplastic material can be sealed to a part of itself or to the other strip by welding or glueing with the application of heat and pressure. A first part of one individual strip...

A connector for demountably attaching an integrated circuit package to a backpanel and forming an electrically conductive pressure coupling between the contacts of the integrated circuit package and the terminal pads of the backpanel. In the preferred embodiment, the connector includes a carrier member upon which the integrated circuit package is mounted and the carrier member has at least one boss extending normally therefrom into a hole formed through the backpanel. The boss of the carrier mem...

A cigarette case is provided with adjustable features to accommodate cigarette packages of varying lengths and widths. A longitudinally slidable insert serves to accommodate variations in package length while a swingable side panel attached to the insert is biased inwardly to accommodate variations in width of the package. A hinged package lid engages the lid of a hard-pack cigarette package for simultaneous opening therewith.