Abstract: A closure assembly for a pressure vessel having an opening in the external surface thereof, comprising a concentric guide track secured to the external surface of the pressure vessel, a curved concentric closure or door configured to conform to the curvature of the pressurized tank, means for interlocking the concentric door to the pressure vessel when the door is in the closed position and an inflatable seal that fills the void between the door and the pressurized tank when the door is closed and the seal inflated. The concentric guide track includes upper and lower concentric tracks upon which the concentric door is mounted and capable of moving along the track such that it can be rotated to the back of the pressure vessel when in the opened position and rotated to close and seal the opening within the pressure vessel in the closed position.

Abstract: A container closure includes an access, which can receive a drinking straw, which is able to be folded down into a groove by the pivotal movement of member, which closes off the drinking straw by engaging it across an upstanding flange or projection.

Abstract: An enclosure has an outer surface and an inner surface and an opening extending between the outer and inner surfaces. The outer surface of the enclosure includes a curved region surrounding the opening; the curved region having a radius. The enclosure includes a resilient cover which is hingedly secured to the enclosure for selectively covering the opening. The resilient cover moves between a first open position and a second closed position. The resilient cover is molded to normally have a first radius which is greater than the radius of the curved region of the enclosure. When in the first open position, the resilient cover defines an arch having the first radius. When in the second closed position, the resilient cover is compressed and flexes so as to conform to the shape of the curved region of the enclosure. Thus, in the second closed position, the resilient cover defines an arch having a second radius which is smaller than the first radius.

Abstract: Each base for fusing a snap-zipper male member and a snap-zipper female member, which form a snap zipper, onto a bag body is formed from a mixture of polypropylene and an ethylene copolymer obtained by copolymerizing ethylene and an .alpha.-olefin having a carbon atom ratio of 3 to 20, in which the ethylene copolymer has a weight average molecular weight/number average molecular weight of less than 3, density in the range from 0.850 g/cm.sup.3 to 0.935 g/cm.sup.3, melt index in the range from 0.3 g/10 min. to 15 g/10 min., and range of number of branching dependent on molecular weight of 0-5 branches/1,000 carbon. A bag with the snap zipper is structured to fuse the snap zipper through the bases onto the bag body.

Abstract: Liquid propane gas tanks for vehicles, and cylindrical tanks in particular, wherein end (1) of cylinder (2) is provided with a cavity (3) housing the valve group ring (4), or the valve rings in the case of the embodiment designed for the foreign market, shaped in such a manner as to fit perfectly inside the cavity; in the preferred embodiment, the cavity has walls (6) and (7) at right angles and placed in the curved end (1) of the cylinder (2) so as to be flush-mounted with the end (1) of cylinder (2).

Abstract: A suitcase, lid or door has a first polygonal part and a second polygonal part. The first and second parts are engaged against each other in a closed position for the assembly. The first and second parts each having at least two non-parallel sides connected to each other at a corner and extending at an angle to each other. Each side has a rabbet edge and the rabbet edges of the first part are shaped to closely engage the rabbet edges of the second part in the closed position. The edges of each side have a gently undulating profile with at least one arc on each side, one of the parts having convex arcs which correspond to, and closely engage concave arcs of the other part. The corners are rounded and one of the concave arcs extends around each corner.

Abstract: A snap zipper includes strip-male and strip-female members, and at least its portion for fusing to a bag body is made of a material mainly composed of a polyester type elastomer or a polybutylene terephthalate (PBT) resin and that the resin of the portion for fusion has a bending modulus of elasticity of 10,000 kg/cm.sup.2 or below. At least its portion for fusion is made of a material having a composition including polyester type elastomer and a polyolefin type resin or polybutylene terephthalate (PBT) resin and a polyolefin type resin and the content of the polyolefin type resin in the composition is 3 to 50% by weight. In case of the snap zipper adapted to have a portion for fusing to the bag body and the male and female members, excepting the portion for fusion, the portion for fusion may be composed of copolymer of ethylene and acrylic acid ester or copolymer of ethylene and methacryic acid ester.

Abstract: A railroad car hatch cover assembly includes a ring which defines a car body opening. There is a peripheral seal attached to the ring. A hatch cover is hinged to the ring and closes upon the ring and seal to close the car body opening. There is a lock assembly generally diametrically opposite the hinge for securing the hatch cover in a closing position. The hatch cover has a peripheral sloping side wall and an integral top. The side wall has a bottom surface. The angle between the sloping peripheral side wall and the side wall bottom surface is constant over the interior periphery of the cover. The height of the sloping side wall gradually increases from a minimum height adjacent the hinge and lock assembly to a maximum height generally midway between the hinge and lock assembly.

Abstract: A lid with a timer includes a circular recess defined in a substantial center of the lid. A plurality of equidistant ear portions protrude from an inner wall of the circular recess and each define a notch. A tubular cap has a circular plate with a central hole and a plurality of apertures and a downward extending edge defining a threaded periphery. A plurality of flats facing the ear portions so as to be marginally received within the circular recess. The tubular cap further defines a groove facing the notches of the ear portions, and a cylindrical chamber for receiving the timer. An adjusting pole extends through the central hole and a corresponding plurality of screws of the timer extending through the apertures. A `C`-clip is received within the groove and biased within the notches as to secured the tubular cap onto the lid. A knob is coupled with the adjusting pole of the timer.

Abstract: An access door cover system for an access port of a utility pole. The cover system includes a removable cover which has grooves for receiving straps. The straps engage the cover along the grooves of the cover and surround the utility pole when the cover is applied to the access port in front of the pole. The straps are secured in a tight bands by locking clips.

Abstract: A utility structure having a utility pole and a closure apparatus for the access port of the utility pole. The closure apparatus includes a removable cover which has grooves for receiving straps. The straps engage the cover along the grooves of the cover and surround the utility pole when the cover is applied to the utility port in front of the access opening of the pole. The straps are secured in a tight bands by locking clips.

Abstract: A beverage-container carrier and sipping assembly (10) that is designed to replace the cap on a conventional bottle-type beverage container (60) or to be directly attached to the circumferential edge (72) of a sport bottle (71) or an opened beverage can (70). The assembly (10) consists of a dome shaped cover (12, 14) that has attached a carrying strap (40) and a straw bore (20) on its upper surface that to accepts a drinking straw (22). The strap can be adjusted to an optimum length to hand carry the cover or to a length that allows the assembly (10) to be placed around a person's neck or shoulders. In either case, the strap (40) is attached to the containers cover (12, 14) at points that correspond to the container (60) shoulder or center-of-gravity. Therefore, the container is comfortably balanced and supported when held by the strap (40). A vertically or horizontally oriented handle (50, 54) can be added to the cover (12, 14) to increase the assembly utility.

Abstract: A device for use in transporting and storing materials. The device includes a housing which is defined by a bottom panel and four generally planar panels extending substantially perpendicular to the bottom panel. A generally rectangular compartment is defined within those four panels which extend perpendicular to the bottom panel. Upper edges of two opposite of the panels perpendicular to the bottom panel are convexly arcuate and parallel to one another. The upper edges of the other two panels are also convex and parallel to one another. The device further includes a generally planar closure panel including a lower surface which carries a compressible seal. The seal is of a size at least as great as an area defined by the upper edges of the four panels which are perpendicular to the bottom panel of the housing.

Abstract: An enclosure especially suitable for telecommunications applications. The opening and closing of the cover of the enclosure is about an axis that permits the installation of the enclosure in environments requiring a minimum of clearance. More specifically, the cover is affixed to a side of a base member of the enclosure opposite to an open face; and the cover has a centrally located hinge which permits the cover to rotate closely about the axis of the open face.

Abstract: A device in connection with a box for cutlery, in which bottom and side walls of the box are provided with perforations and/or slots. Said box is circular-cylindrical and across part of its curved portion it has an opening which may be closed by the aid of a curved closure means which is provided to be slidable inside said box.

Abstract: A lid structure is formed of conjoined upper and lower sheets of material. One of the sheets has a receptacle formed therein which receives an elastomeric pad. The portion of the conjoined first and second sheets form a sealing flange which completely surrounds the periphery of the receptacle and which provides a surface whereby the lid may be secured to a container.

Abstract: A door system for a boiler penthouse or other high temperature industrial environment is disclosed. A sufficiently large entranceway for both workmen and large equipment is provided by the door system. The access door has the capability for quick gas-tight sealing during closing. A hinged metal door plate has arcuate welding beads applied to its internal surface near its corners to produce permanent inward cupping of the door plate adjacent to its corners. Devices apply pressure to the exterior surface of the door plate during the closing thereof to flatten the inwardly cupped corners and effect gas-tight sealing of the interior surface of the door plate near its margin with an opposing high temperature resistant gasket carried by the front face of a refractory insulated door frame. A layer of thermal insulating material in a protective jacket is secured to the interior surface of the door plate.

Abstract: This invention relates to an impact absorber for containers for nuclear fuels, radioactive products and/or dangerous chemical substances and used either for transporting or for storing said materials.Said impact absorber is constituted by two convex shells fixed to the ends of the container by means of frusto-conical flanges and clamping half-rings, which are joined together by nuts and bolts.

Abstract: A barrel loading and unloading station that includes a barrel support stand 10 for supporting a plating barrel 18 in predetermined positions and a door handling apparatus 14 for releasing and separating a barrel access door 16 from the plating barrel. The door handling apparatus 14 includes a door assembly 40 mounted for reciprocating motion towards and away from the plating barrel by a pair of trackways 42 that are mounted to an elevator mechanism 44 that is operative to raise and lower the trackways to increase accessibility to the barrel after the access door has been removed. One embodiment of the door handling assembly 40 includes a pair of rotatable spindles 56 operative to engage and rotate locking knobs 220 on the barrel access door 16 and a slide mechanism 120 for unlatching the door from the barrel. Another embodiment of the door handling assembly 40' includes a plurality of clamp engaging spreader arms 366 operative to spread and release resilient clamps 352 from the plating barrel.

Abstract: A combine hopper cover is disclosed. The cover is arched and has raised ribs. A grain inspection door is included and has a flange portion and a recessed portion defining shoulders therebetween. The shoulders form guides for the door to slide along the raised ribs of the arched cover. Stretchable straps hold the cover and the inspection door to the combine hopper.

Abstract: An improved peripheral closure joint for sealing spherical shell segments to a supporting structure therefor is provided which comprises a generally frustoconical member having an annular groove on the smaller circumference thereof for receiving the peripheral edge of the shell segment and means on the outer periphery thereof for engaging the supporting structure without slippage, said means including a plurality of annular corrugations on the peripheral edge of said frustoconical member and mating corrugations on a supporting surface of said structure to allow said member limited rolling engagement with said surface as said member flexes under an applied load. The frustoconical member is preferably configured to transmit the applied load substantially perpendicular to said surface, and tangent to the spherical shell.

Abstract: An evacuable casing for a rotor machine comprises a cover surrounding the machine, bearing means mounting the cover for rotation on a foundation, the cover having an endless base edge, and sealing means extending along the base edge to seal against the foundation when a vacuum is applied within the cover. One part of the cover is mounted for movement relative to a second part of the cover to form a large opening in the cover, this opening in combination with said rotation of the cover on the foundation providing easy access to the machine from any radial direction.

Abstract: A food serving container including a base supporting a container bowl and a cover for the bowl. The bowl is supported in fixed position while the cover is pivotally supported so that it may be rocked alternately to open and closed positions. In open position the cover is underposed and when closed the cover is superposed in relation to the bowl.

Abstract: The stove is of the cylindrical firechamber-type having a side loading door for loading wood or other combustible material such as coke or coal into the chamber. The front of the stove chamber may be opened to enable viewing of the wood burning in the stove by means of an arcuate sliding door that is operable to substantially totally close the chamber or open a section of the front thereof for viewing purposes. The sliding door is covered by a shield (window) construction including a tempered glass face. The stove is provided with an open base for supporting the chamber and a shroud covering the top and back of the chamber and preferably having blower means associated therewith. The drafting of the chamber is provided by a side door draft and a top draft extending longitudinally of the chamber.

Abstract: A plug for obturating the lift hole of poured concrete drain pipes or conduits. The plug, preferably made of a plastic molding, comprises a generally thin head in the form of a plate and a shank projecting from the lower surface of the plate. The shank has at least two substantially thin fins extending radially from a common centerline, each having a lateral edge engageable with the rim of the hole obturated by the plug. Preferably, the shank is cruciform and is provided with three or more fins.

Abstract: A combination toothbrush holder and carrier encloses a toothbrush for travel or storage and stands the brush upright for drying or display. The toothbrush is freely supported against the wall of a tube which forms the holder thereby eliminating the need for any special gripper or support element. Any of various means are provided to expose the brush to the air. These include open ends, a door sliding along the wall of the tube, or other similar openings. In all cases, the center of gravity and base of the holder are such that a supported brush is held substantially upright without upsetting the holder and brush.

Abstract: A novel device for closing the dome of a tank with gravity and/or pneumatic discharge, comprising a closure cap member which is applied against a seat provided with a resilient sealing gasket, and a closure mechanism for holding the cap member on the seat, wherein the cap member comprises a protection cap provided with fixing means for the closure mechanism and a bearing surface whose surface is a surface of revolution and which is formed by at least one segment of a straight line and/or arc of a curve, wherein the seat comprises a support plate acting as an abutment for the bearing suface of the cap member, a resilient gasket which is loaded in bending by contact with the bearing surface of the cap member, and a co-operating flange for fixing the gasket on the support plate, and wherein the closure mechanism is operable with a low mechanical force.

Abstract: Defective coated workpieces are repaired. To this end a coated plate is placed on to the defective area so as to cover and overlap the defective area. A seal is disposed between the defective area and the plate and the latter is secured by means of bolts or screws extending through the workpiece from the uncoated side and extending into the plate.

Abstract: Defective sites in the interior enamel coating of an enameled container are repaired. To this end, a bore is provided in the defective site; a sleeve is inserted in the bore; a screw bolt with two threaded ends is passed through the sleeve; a seal is slipped over the threaded end portion of the screw bolt which reaches into the container; a cap nut is tightened thereonto; a cup spring and lock nut are slipped over the threaded end portion of the screw bolt which extends outwardly from the container; and the cup spring and lock nut are tightened by means of a cap nut.

Abstract: A bimetallic closure member comprised of two materials having dissimilar magnetostrictive characteristics does not require a hinge, when subjected to a magnetic field, or alternatively, when removed from a magnetic field, the materials contract or expand at different rates causing the member to bend thereby opening or closing the closure member.

Abstract: A shield or door for openings in the sides of an aluminum reduction pot is constructed from extrusions rolled to a desired curvature and fitted together longitudinally with tongue and groove means. The upper end of the shield is provided with an insulated lip adapted to rest on a corresponding lip of the potline. The bottom of the shield comprises a longitudinal triangular extrusion adapted to rest in a longitudinal groove of the potline. The shield containing a grab handle is adapted to be easily placed or removed from the side openings of the potline and are adapted to prevent noxious gases from escaping from the openings.

Abstract: A wheeled container having a rectangular bottom and a semi-cylindrical cover, part of which is formed as a telescoping lid. The bottom has a low sill and upwardly extending end walls, the end opposite the wheel having a lifting handle and legs. In one embodiment the lid is guided and supported by a pair of curved tracks inside the end walls.

Abstract: A container, particularly one made of synthetic material or steel, compri a cylindrical container shell with a bottom or end closing each end of cylindrical shape and each end closing portion having a longitudinal axis extending perpendicular to the longitudinal axis of the shell. The closing end portions comprise half cylinders having diameters equal to the diameter of the cylindrical shell.