Abstract: A folded report cover is provided with a lock strip extending along at least one side of the cover parallel and contiguous to the fold and outwardly of the plane of the side. A channel-shaped gripping member is engaged to the cover along the fold and locked in place by a stop which extends from the interior of one leg of the gripping member into resilient engagement with a longitudinal edge of the lock strip and the one side of the cover. The other leg of the gripping member engages the opposite side of the cover. The lock strip is preferably an integral portion of the material of the cover.

Abstract: Apparatus for positioning or orienting a hand of tubes, or the like, includes clamp arms for clamping the hand while on a conveyor, a fluid activated ram for raising the hand, inverting it 180.degree., lowering it back onto the conveyor, and releasing the clamp arms. The device may also be tilted while in elevated position so that the clamp arms and hand avoid contact with personnel during inversion.

Abstract: A packaging machine useful for packaging fluidized dry, divided, solid material into containers such as valve bags is provided with an isolator section for isolating forces generated in the flow path of the material from a filling and weighing section. The flow path includes a filling spout that extends into the container through a valve formed therein and is sealed in the valve by an inflatable sleeve on the filling spout, the sleeve being so constructed that only that portion that enters the valve is permitted to expand.

Abstract: An inflatable dunnage bag is formed by a flat, flexible triangular envelope constructed of heavy kraft paper and a sealed inner plastic liner which is inflatable through a valve. The bag is used for shoring load by standing it upright with its base topmost, horizontally oriented, and positioned adjacent the top of the load and its apex positioned contiguous to the bottom perimeter of the load.

Abstract: A force balancing system includes a plurality of flexure elements disposed to define the corners of an imaginary parallelogram, and each being fixed at one end and connected to a movable load bearing device at the other end so that forces acting through any one flexure element are in exact balance when the system is in equilibrium. The system finds application in weighing systems wherein the object to be weighed constitutes the load.

Abstract: A multiwall cooler bag is formed by gusseted inner and outer tubes, the outer tube being made of kraft paper and having its lower end circumferentially bonded to the inner tube, the inner tube comprising an inner ply of plastic material heat sealed to closure at its lower end and an outer ply of kraft paper, with a strip of plastic reinforcing material extending the length of and secured to the back and front walls of the outer tube. The front wall of the outer tube has its lower end formed with a closure flap secured to the back wall of the outer tube, while the back wall of the outer tube has its upper end formed with a closure flap overlapping the front wall when the bag is completely closed. The upper portion of the inner tube is free of the outer tube to permit independent closing of the inner tube before closing the outer tube.

Abstract: A bulk container of substantially uniform cross-sectional area throughout its height is formed by so folding a single rectangular piece of woven fabric as to provide a bottom wall, four side walls extending from the bottom wall, and four rectangular corner flaps each extending between adjacent side walls. Each corner flap is folded into four triangular portions, the first and second portions being folded against the surfaces of the corresponding side walls, the third portion being folded against the surfaces of the first and second portions, and the fourth portion being folded against the surface of the third portion. Lifting loops are mounted at the corners at the upper edges of the side walls, each loop having two legs disposed intermediate and overlying the fourth portion and the first and second portions of the corresponding corner flap.

Abstract: A package for preserving produce in a wholesome condition for an extended period of time is formed by a sealed container enveloping the produce and filled with a preservative gas which inhibits bacterial growth. The container is formed by a high barrier film which is so perforated as to provide a gas pressure within the container sufficient to inhibit air inflow into the container and to assure gas outflow from the container to prevent its distortion.