Abstract: An improved liquid rotor device is provided having a cylindrically-shaped hub, which is supported by a horizontal shaft, and having several curved blades which are attached to the outer portions of the rotating hub. The horizontal shaft preferably rotates with the hub so that it can mechanically drive a device such as an electrical generator. The multiple blades mounted to the exterior surface of the hub are curved such that the longitudinal axis of each blade is parallel to the axis of rotation (i.e., the horizontal shaft). Each blade is arcuate in shape and preferably comprises a portion of the cylindrical wall of a hollow cylinder. In one embodiment of the, the rotating hub and blades sub-assembly is surrounded by a hollow cylindrical housing that is entirely submerged in a liquid, such as water. The surrounding hollow cylindrical housing has an inlet to receive the liquid into the area of the rotating blades and an outlet through which the liquid is discharged.

Abstract: A fluid rotor is disclosed for turning electrical generators or other mechanical equipment. The fluid rotor contains multiple curved blades which are in a single plane of rotation, and which are spaced closely together so as to maximize the efficiency of the captured fluid. The open blades are designed to overlap one another to an extent that there are always at least two blades positioned to capture the fluid regardless from which direction the fluid is flowing. The curved blades allow the rotor to always rotate in the correct direction regardless of the direction of the fluid without the use of moving vanes or housings to help direct the fluid at certain portions of the fluid rotor. If the rotor is made to turn in the incorrect direction, it will, as fluid from any direction flows against it, slow down, stop momentarily, and then begin to rotate in the correct direction.

Abstract: A wind rotor is disclosed for turning electrical generators or other mechanical equipment. The wind rotor contains multiple curved blades which are in a single plane of rotation, and which are spaced closely together so as to maximize the efficiency of the captured wind. The open blades are designed to overlap one another to an extent that there are always at least two blades positioned to capture the wind regardless from which direction the wind is blowing. The curved blades allow the rotor to always rotate in the correct direction regardless of the direction of the wind without the use of moving vanes or housings to help direct the wind at certain portions of the wind rotor. If the rotor is made to turn in the incorrect direction, it will, as wind from any direction blows against it, slow down, stop momentarily, and then begin to rotate in the correct direction.

Abstract: A rotor having an elongated cylindrical body which surrounds a vertically disposed bearing shaft fixedly secured at its lowermost end to a supporting base, the rotor mounting a bearing pad at its uppermost end positioned to be seated on the upper end of the bearing shaft so as to rotatably suspend the rotor from the bearing shaft, stabilizers being provided to maintain concentric rotation of the rotor about the bearing shaft as the rotor is driven by a flowing fluid.

Abstract: A fluid flow driven engine comprising two counter-directionally rotating rotors rotatably mounted on a base which can be used to secure the fluid flow driven engine in the path of a flowing fluid, the rotors comprising cylindrical drums with a plurality of circumferentially spaced impellers projecting radially outward from each drum, the rotors being placed in closely spaced relation so as to define a fluid flow passageway between the drums. A housing having a venturi shaped or tapered inlet and outlet surrounds the rotors so that the inlet and outlet direct a flowing fluid through the passageway and the venturi shape increases the velocity of a fluid entering the passageway, extension plates being slidably mounted in the inlet and outlet portions of the housing to vary the cross-sectional areas of the inlet and outlet, thereby varying the velocity of a flowing fluid entering the passageway.

Abstract: A carton end closure in which an inner pair of closure flaps is provided with score lines extending parallel to and in close proximity to the inner edges of the closure flaps, the score lines defining grooves in the outer surfaces of the flaps, the inner flaps also being provided with trough defining debossed areas, preferably of triangular configuration, extending from the outer ends of the score lines to the inner corner edges of the inner flaps, a full width intermediate closure flap adapted to overlie the innermost flaps, the intermediate flap having score lines formed therein positioned to mate with the score lines in the inner flaps, so that when the flaps are infolded with a thin layer of adhesive interposed between the inner and intermediate flaps and sealing pressure applied, increments of adhesive will be forced into the troughs to form plugs which close and seal the corner edges of the end closure.

Abstract: A rectangular carton having a self-sealing reclosable end closure which may be used with or without a liner, the end closure being adapted to lie within the confines of the carton body and having an opposing pair of vertically disposed sealing flaps biased into face-to-face contacting relation by an opposing pair of end closure flaps extending downwardly and inwardly from the carton body walls to which they are hingedly connected, the opposing pair of end closure flaps having shoulders at their opposite end edges engaged by downwardly and inwardly folded flap members hingedly connected to the remaining pair of carton body walls, the closure flaps being displaceable to open the carton by pulling upwardly on the juxtaposed sealing flaps and reclosable by juxtaposing the sealing flaps and displacing them downwardly to lie within the confines of the carton body.

Abstract: A tightly sealed carton structure wherein an opposing pair of innermost end closure flaps are hingedly connected to the carton body walls along lines of articulation defining inwardly projecting ridges, the innermost closure flaps each comprising first and second flap parts hingedly connected together with the second flap part reversely folded and adhesively secured to the undersurface of the first part to form a double thickness reinforcing flap, the second flap part being of a length such that its free end edge coincides with the projecting ridge of the line of articulation connecting the flap to the carton body, the free end edge of the second flap part being in wedging engagement with the ridge defining line of articulation when the double thickness flap is infolded at right angles to the carton body wall, thereby providing an essentially rigid planar supporting surface over which the remaining end closure flaps may be folded and tightly sealed; the second flap parts preferably have laterally projecting e