Abstract: A shipping and display container which is formed from a one piece blank and which is folded along predetermined fold lines to form a tray portion and a cover portion hingedly connected to each other. The tray portion may be provided with compartments to receive packages therein. The cover portion is adapted to be folded back beneath the tray so that the tray may be supported at an angle with respect to a support surface in order to display the contents of the tray. In the open position, the tray has provision for an upright display panel to be attached thereto.

Abstract: The apparatus allows logs to be peeled to smaller cores so as to increase veneer recovery, especially in operations where logs of ten inches or smaller prevail. The apparatus includes concentric dogs which embed in the ends of logs during peeling. The outer dog is retractable and the inner dog has a reduced shank portion which projects from an enlarged basal portion. The outer dog has a reduced diameter bore which supportingly engages the shank of the inner dog to give added strength and allow ultimate reduction in the diameter of the inner dog shank.

Abstract: A system for the analysis of gas samples from a dry and dusty environment, such as the interior of a lime kiln, includes a probe which extends relatively far into the kiln, to avoid the adverse effect on the measurements of extraneous, i.e., "tramp", air which may leak into the kiln. A sample of the gas is drawn through an isolation tube which extends from the probe chamber in a direction for sample flow opposite to the flow of gases in the kiln. The sample is passed through a filter, within the probe chamber; pumped to a conditioning system, in which the sample gas is cleaned and cooled; and then pumped to gas analysis cells for the analysis of the individual gases.The probe chamber is mounted at the end of a support pipe which carries a first tube, connected to the filter. This pipe serves as a path to introduce purge air for the filter and also calibration gases for test purposes. The actual gas sample is withdrawn through an innermost pipe which terminates just upstream of the inlet of the filter.

Abstract: An apparatus for forming a paperboard receptacle includes male and female dies which draw the receptacle from a blank. The receptacle is moisturized during the drawing process to plasticize and lubricate the paperboard by injecting steam into one of the dies.

Abstract: A filling nozzle for use in filling a valve bag eliminates sifting of product during and after the filling operation. A body member, adapted for insertion into the valve sleeve, has a material passage therethrough adapted to direct a stream of product emerging therefrom through the valve. A vent is provided, connected to a first conduit, for continuously drawing a low vacuum between the nozzle and the sleeve, both during and after the filling operation, to remove any product particles there present. A second conduit is provided for introducing a high pressure blast of air into the material passage to remove any product remaining therein after a bag has been filled. Finally, a third conduit is provided for drawing a high vacuum in the material passage to remove any particles remaining therein after the filling operation has been completed.

Abstract: Bags having a filling valve sleeve which are adapted for containing pulverulent material are filled by inserting a filler nozzle into the sleeve and blowing the material through the nozzle and then through an entry port in the sleeve into the bags. The filler nozzle has a transversely flattened configuration which conforms to the shape of the valve sleeve. The valve sleeve has an inner end which is closed and formed devoid of deep corners and the filler nozzle has a nose portion which is formed so as to conform in profile to the inner end of the sleeve. The entry port of the sleeve is disposed in the bottom wall thereof and the filler nozzle has a delivery port in its bottom wall which registers with the sleeve entry port. The valve sleeve has an inner plastic film lining, and the filler nozzle has a groove which surrounds the nozzle delivery port to which groove a vacuum is applied so as to draw the plastic lining into sealing engagement with the filler nozzle.

Abstract: An apparatus for use in filling a valve bag eliminates sifting of product during the filling process. A filling nozzle is inserted into the valve of a bag to be filled. A flow of particulate material is provided through the filling nozzle and into the bag. When the bag is full, the flow of particulate material is terminated. A blast of high pressure air is then introduced into the nozzle in order to clear the nozzle of any residual particulate material therein. A low pressure blast of air is introduced between the nozzle and the filling valve to suspend any particles present in the filling valve after the nozzle has been cleared by the high pressure blast. A vacuum is introduced into the nozzle to suck any suspended particles out of the filling valve after the low pressure blast has been introduced. A boot can be inflated around the nozzle to seal the nozzle within the bag valve before filling the bag.

Abstract: The package is of the blister variety and includes a paperboard component, a transparent plastic sheet heat sealed to the paperboard component and a plastic blister component. The blister is pivotally connected to the paperboard-plastic sheet composite. A portion of the paperboard plastic sheet composite is secured to the blister to form a latch whereby the package, after being initially opened, can be reclosed. The package can be used for any product which is periodically used and stored between uses in its package.

Abstract: A frame is made from a one-piece paperboard blank which is folded and glued into a collapsed shipment and storage configuration. The collapsed frame can be manually expanded for use. The corners of the expanded frame are locked by overlapping tabs to hold the frame in its expanded state. The frame can be used to hold air filters which are used to filter the air entering a hot air furnace.

Abstract: A skirt for a sewage aerator mixer is supported on a bubble generator pipe beneath the mixer structure in a sludge basin or directly on the floor of the basin in surrounding relation to the lower end of the mixer structure to extend the sphere of influence of the mixer.

Abstract: A blank for forming a carton with integral tamper-proof pouring spout, the method of forming the carton, and the resultant carton, said carton comprising first and second side wall panels, first and second end wall panels hingedly connected to said first and second side wall panels, and top and bottom closure panels attached to said side wall panels to form a tubular carton of rectangular cross-section, one of said wall panels of said erected carton including an inner and outer panel having a dispensing opening with a pouring spout formed therethrough being movable from a closed to an open position, and an access tab located above and immediately adjacent to said pouring spout and removably attached to said outer panel and said pouring spout to prevent opening of said spout until said access tab is removed.

Abstract: An apparatus and method for use in filling a valve bag eliminates sifting of product during the filling process. A filling nozzle is inserted into the valve of a bag to be filled. A flow of particulate material is provided through the filling nozzle and into the bag. When the bag is full, the flow of particulate material is terminated. A blast of high pressure air is then introduced into the nozzle in order to clear the nozzle of any residual particulate material therein. A low pressure blast of air is introduced between the nozzle and the filling valve to suspend any particles present in the filling valve after the nozzle has been cleard by the high pressure blast. A vacuum is introduced into the nozzle to suck any suspended particles out of the filling valve after the low pressure blast has been introduced. A boot can be inflated around the nozzle to seal the nozzle within the bag valve before filling the bag.

Abstract: A light refractive coated paperboard is provided comprising a normally oil and grease permeable substrate, a non-leafing silver-colored ink layer applied to one surface of said substrate and a highly pigmented (titanium dioxide) ink layer superimposed on said non-leafing silver colored ink layer and possibly a clear lacquer or varnish layer superimposed on the TiO.sub.2 containing ink layer. The above order of coating layers produces a somewhat flat appearance; for producing a more metallic look the order of the silver-colored ink layer and the highly pigmented (TiO.sub.2) layer are reversed. The light refractive coated paperboard conceals, from the outer surface of a package made therefrom, oil and grease stains which have penetrated the inner surface of the package. A method of making such light refractive coated paperboard is also disclosed.

Abstract: An improved easy opening pinch bottom or gusset bag is provided. The bag includes opposed front and back panels and opposed pairs of front and rear gusset panels foldably connected to one another. The rear gusset panels and the rear panel are of a sufficient dimension to fold over the front panel to close the bag. A tear strip is secured to the front panel at a location to be overlapped by the rear gusset panels and the rear panel when the bag is closed. The portions of the rear gusset panels and the rear panel that will lie adjacent the tear strip in the closed condition of the bag are provided with short perforation lines to facilitate the initial advancement of the tear strip through the rear gusset panels and the rear panel. These perforation lines extend only a short distance so that the overall strength of the bag is not adversely affected.

Abstract: An aqueous starch-based corrugating adhesive containing casein, a carboxylated styrene-butadiene copolymer latex and preferably glyoxal is used to adhere liner and medium substrates having normally abherent surfaces.

Abstract: An article including a placemat is formed from paperboard and includes a plurality of compartments for holding foodstuffs and a beverage container. The article is made from a one-piece paperboard blank which is precut, scored and glued to a flat storage configuration. The compartments are expandable prior to use with internal walls which are deflected to hold the compartments in their expanded form.

Abstract: A display carton is formed from a one-piece paperboard blank which can be prefolded and glued into a partially erected flat bulk shipping configuration. The carton has a hinged platform on which the article to be displayed is placed. Opposite ends of the displayed article are captured by closed end portions of the platform. A two-ply header card forms the back portion of the carton.

Abstract: A frame is made from a one-piece paperboard blank which is formed in a collapsed shipment and storage blank configuration. The collapsed frame can be manually expanded for use. The corners of the expanded frame are locked by locking tabs and locking slots which hold the frame in its expanded state. The frame can be used to hold air filters which are used to filter the air entering a hot air furnace.

Abstract: A reinforcement is secured across the bottom major horizontal score of a container in the region of the side seam flap in order to prevent opening or extension of the horizontal score in the side seam flap in the area of the side seam while forming the container or under the gravitational force of the fluid contained within the container.

Abstract: A plastic caul for embossing wood panels with grain patterns comprises a laminate of sheets of epoxy prepreg made of such heat insensitive non-cellulosic webs such as fiberglass or woven graphite impregnated with partially cured epoxy resin. The caul may also include a metal core or backing sheet. The embossing face of the caul contains a relief design, usually transferred from a natural wood grain pattern.To form the caul, a mold is first prepared. The mold may comprise a textured wood panel, the grain surface of which has been sealed with a material such as urethane varnish or a water reducible imine catalyzed acrylic varnish with a urethane additive. The sealed textured face is then coated with a release agent. This treatment prevents the panel and future caul from sticking together. Sheets of the epoxy prepreg are then layered between the treated surface of the panel and a backing sheet and compressed under heat and pressure until substantially cured.