A mailing form, including an upper sheet of material adhesively fastened to a lower sheet, is configured for the printing of information on a single side during passage of the form through a non-impact printer. At a first end of the form, the upper and lower sheets are fastened together permanently, forming a pocket to be used as a return envelope. The portion of the upper sheet which extends away from this pocket is divided into an inner flap, on which information is printed, and an outer flap,...

A method of forming a series of bags for bulky articles from rolled thermoplastic film and padding element includes arranging a linear, longitudinally traveling queue of layers of film and padding element according to a set of desired bag dimensions and characteristics and controlling the advancement of the queue to make padding element and seal cuts to form the bags. The invention also includes a system for fabricating bags substantially in the manner identified in the method of the present inv...

The invention relates to a stack of fan folded material and related systems and processes. The stack includes at least two clips of fan folded material. Each clip includes a plurality of fan folded sheets, with each sheet joined to at least one adjacent sheet by a weakened line. Each clip is joined to an adjacent clip by a last sheet of one clip being interfolded with or adhesively joined to a first sheet of a succeeding clip.

A self-closing closure for a tube or package having a resilient wall for dispensing flowable material upon the application of pressure on the tube, utilizing a relatively stiff spider for supporting an outwardly extending valve stem having a closed outer surface and a diaphragm member having its periphery interconnected with the periphery of the spider to form a closure unit and its inner portion forming a valve with the valve stem. The diaphragm member is formed with a relatively thick flange s...

An aerosol valve actuator has a body in which a forwardly open cavity is formed and which contains in its forward end a reciprocating piston in which a discharge orifice is formed, a rod or probe extending from the closed back end of the cavity forwardly and having a front end which normally closes the discharge orifice when the piston is at a backward position, but opens this orifice when the piston reciprocates forwardly to leave the front end of the rod or probe. A hole opens transversely thr...

A paper web is unwound and conveyed through an envelope making machine where a side flap cutting device forms side flaps in the side edges of the web. Scorer rollers form longitudinal scores in the side flaps and the side flaps are thereafter folded along the score lines. Other scorer rollers form transverse score lines for the top and bottom flaps of the envelope. Envelope blanks having the folded side flaps are thereafter severed from the web and separated from each other. After the blanks are...

A method and apparatus for manufacturing window envelopes is provided. After an opening has been cut in an envelope blank and glue applied around the opening, a window patch is secured over the opening and a panel secured behind the window patch. The panel serves as the rear panel of a pocket portion formed behind the window. When the envelope blank is folded and glued into its intended form, it will include both a relatively large compartment and a relatively small pocket. The window patch and ...

A mailer is prepared using laser electronic printing with variable data and digitally stored data. The sheet fed Xerox 8700 and 9700 laser printer, for instance, is limited to a width of 11" which necessitates a prefolding of the mailer blank to a length of 14", passing the prefolded blank through the laser printer with the longitudinal axis of the blank extending laterally of the path of feed, arranging the blank such that the 11" printing area will effectively cover the area of the blank to be...

A self-closing valve assembly for installation in a dispensing opening of a container, a seal cap or the like, includes a first closure element having a domed wall portion of resilient material incorporating a passage-opening, said wall portion being resiliently deformable from a closed position into an open position under the influence of a first differential pressure force resulting from pressures acting on its opposite surfaces, and a second closure element having a domed wall portion for sea...

The invention concerns a dispensing and closure system arranged at the top of a container, in particular a soft tube comprising a liquid or pasty product, which is delivered by pressing on the tube. The invention is characterized in that it consists of a valve comprising two concentric elements, one of which forms a mobile cylindrical delivery valve and the other forms a cylindrical body exiting from a plate linked to the tube. The two elements defined between them an annular gap through which t...