Abstract: A pinched sack, which is made at least partially from a plastic material in the form of a tube section, has at least one pinched bottom at one end of the tube section. At least some of the plastic material is stretched, and at least one pinched bottom is provided by a thermally induced bonding process.

Abstract: A shipping bag or sack having side gussets, an easy open double fold, and tightly sealed stepped ends is described that withstands internally forces at the easy open end during drop tests. The side gussets include a stepped feature that may be incorporated into polywoven, thermoplastic and paper bags. The bags further include a two step fold and seal process.

Abstract: A base fabric made of polypropylene and/or polyethylene tapes or fibers is laminated with a polyolefin film coating. The laminated fabric may be used to make a shipping sack.

Abstract: A shipping sack includes a body including a first end and a second end, opposed lateral sides, and opposed first and second panels. The first end is a first closed end defined by a first end portion of the first panel extending beyond a first end portion of the second panel and the first end portion of the first panel is folded-over and secured to the first end portion of the second panel. The second end is a second closed end defined by a second end portion of the second panel extending beyond a second end portion of the first panel and the second end portion of the second panel is folded-over and secured to the second end portion of the first panel. A fill opening is located on the second panel and extends between the lateral sides and is disposed at a location adjacent the first closed end.

Abstract: The invention describes a pinched sack (18), which (18) is made at least partially from a plastic material (3), showing a sack body, essentially comprising a tube section (24), and which (18) shows at least one pinched bottom (55) at one end of the tube section (24). At least some of the plastic material (3) is stretched and at least one pinched bottom (55) is fixated by a thermally induced bonding process.

Abstract: A method of manufacturing a gusseted pinch bag from polypropylene. A sheet or seamless tube of polypropylene is provided. The sheet is preferably comprised of one or more layers of axially and/or biaxially oriented polypropylene. Perforation lines in a pinch pattern are formed in the sheet or tube. Preferably a laser forms a series of small, closely spaced holes in the sheet along the perforation line. The laser heats the plastic surrounding the holes, causing the polypropylene molecules between the holes to lose their orientation. Thus, the polypropylene in the perforation line between the holes is substantially weakened. If a sheet is used, it is folded into a gusseted tube and the edges are sealed together to make a tube. If a seamless tube is used, the tube is gusseted. In either case, a lateral force is then applied to the terminal tube, breaking the perforation line and separating the terminal tube from the sheet. The bottom end of the tube is then sealed, thereby forming a bag.

Abstract: An improved belt-clip holder for various objects is disclosed. The holder may be of unitary construction and includes a belt-clip for securely attaching the holder to a user's belt or other suitable item. The unitary construction reduces the cost and complexity of the holder. The holder has front, back and side panels to hold and protect an object, such as a dipping tobacco tin, or a group of objects, such as a group of credit cards. The holder also may have bottom panels in some embodiments. A retainer, having an integral retaining lip, secures the held object or objects in the holder. A cavity formed by the lower edges of the front, back, and side panels, allows a user to push a held object upward in order to remove the object from the holder. The retainer is configured so that a user my disengage the integral retaining lip using the same hand used to push the held object upward via the cavity.

Abstract: A plastic reinforced, gusseted pinch bag. The bag is preferably formed from a sheet of clay coated kraft paper. High quality graphics may be printed on the clay coating. A plastic matrix is laminated to the exterior of the sheet which is then formed into a gusseted tube and separated into sections. Each section is then closed at one end to form bags. The plastic matrix on the exterior of the bags will protect them from tears and punctures and help prevent spreading of any tears that may form. Additionally, the matrix and the adhesive used to laminate the matrix to the sheet will form a plastic coating on the exterior of the bags which will make the bags more resistant to moisture. The preferred adhesive and matrix will be transparent or very nearly so, allowing the graphics on the bags to be viewed without obstruction.

Abstract: The disclosure is directed to a polyethylene or similar flexible package having a maze vent to allow the escape of air from the interior of the package filled with powdered or granular material. The maze vent comprises an interior vented seal gap, a maze vent channel, and a channel vent. The maze vent allows air to escape during the filling process while maintaining the powdered or granular material within the bag and preventing ingress of air, moisture and other contaminants. The disclosure is directed to a such a package by itself or as a liner to a multiple paper ply satchel bottom bag, the poly liner being free within the innermost ply except for attachment at the mouth of the bag. Further, the satchel bottom bag of the present disclosure may contain a reinforcing patch on the satchel bottom. Additionally, the reinforcing patch may have an opener for easy opening of the bag.

Abstract: A multiple ply freight shipping bag having multiple side gussets. The bag being of the type having pinch closeable upper and lower ends. The side gussets and the bag plies all being stepped in incremental distances to form an elongated sealable stepping pattern for efficient closure of the bag to prevent outward sifting or channeling of products filling the bag. The upper and lower corners of the gusset walls are spot bonded together to maintain a locked position, hold ply alignment, and achieve increased bag strength during and after filling, and wherein the gussets are freely expandable therebetween from the bottom of the bag to the top.

Abstract: The present invention is a valve bag with a valve assembly that provides closure during and after the filling process, thus preventing unwanted spilling and sifting of the valve bag contents through the valve opening during transporting or moving the bag to a location in which the valve is permanently sealed, and methods for making and filling such a bag. An automatic self-closing valve assembly also is provide that requires no subsequent sealing after the filling process.

Abstract: A valve assembly for a satchel end tubular bag comprising four members. Two members form an upper sub-assembly and two other members for a lower sub-assembly. The valve assembly is adhesively secured at a corner tuck of the satchel end within the paper plies of the bag. The upper sub-assembly is wrapped within the lower sub-assembly and forms a passageway for a product injection nozzle to be inserted therethrough for introducing product into the bag. The members of the sub-assemblies are laterally offset and each sub-assembly has said members both laterally and longitudinally offset, or stepped, to achieve strength and a sift-proof construction. Extensions of one of the members of each sub-assembly extend bag-inwardly and comprise a thin pliable material, whereby to provide improved self-closure as the product fills the bag. Both improved filling and sealing are achieved.

Abstract: The present invention is a valve bag with a valve assembly that provides closure during and after the filling process, thus preventing unwanted spilling and sifting of the valve bag contents through the valve opening during transporting or moving the bag to a location in which the valve is permanently sealed, and methods for making and filling such a bag.

Abstract: An electrical time-switch has two relays on a circuit board with electrical connector blades extending from it. A backplate carrying cable connectors is provided with slots such that it can be fitted over the blades, making electrical connection between the cable connectors and the circuit board, with either face exposed. Thus the same backplate can be used for both wall-mounting and panel-mounting, while maintaining ease of access to the cable connectors for cable attachment. An optional unit with a second pair of relays can be fitted on the circuit board and has additional blades for connection to the extra relays.