Abstract: A pre-buried casing tube uses glass fiber reinforced resin as the raw material to enhance the operation strength of the pre-buried casing tube, extend the service life of the pre-buried casing tube, and reduce maintenance cost of the railway transport system. The pre-buried casing tube includes at least one casing tube body, each casing tube body including at least one retaining element, the retaining elements provided in intervals along one side of the casing tube, each casing tube body disposed adjacently so as to form a passage for a screw, each retaining element provided in the passage for the screw.

Abstract: A stopper for a tank having an opening includes a body which is provided to be fixed in the opening and which has a hole, a membrane which is fixed to the body and of which a portion completely blocks the hole, a core which is fixed to the portion of the membrane which blocks the hole, and stop means which are provided to permit a movement of the core between a blocking position which corresponds to the non-broken membrane which blocks the hole, and an open position which corresponds to the broken membrane which is spaced apart from the hole, and to keep the core fixedly joined to the body in an open position. The knowledge of the characteristics of the membrane enables the force from which the stopper opens to be known.

Abstract: A paper feeder includes a housing, a driving unit, a sheet loading portion, a paper feeding unit, and a lock mechanism. The lock mechanism is located in the housing. The paper feeding unit includes a pickup roller, a second shaft portion, a feed roller, a holder, and a stopper. The stopper is swingably supported in the holder, and is configured to change states between a regulation state and a permission state. The regulation state is a state that regulates entrance of the sheet to be loaded in the sheet loading portion into a side of the feed roller side corresponding to the second position of the holder. The permission state is a state that permits entrance of the sheet into the feed roller side corresponding to the first position of the holder. The lock mechanism locks the holder in the second position at a time of non-paper feeding.

Abstract: Compound bung-type stopper assemblies for wine and spirits barrels, comprising a body having an enlarged head portion, a reduced, tapered neck portion and a tapered, disposable elastomeric cup that snugly fits over the neck. The taper permits the inventive compound bung to be universal in fit and the elastomeric material of the cup grippingly conforms to bunghole irregularities. The body can be re-used with multiple cups, each being dedicated to a different wine or spirit, or after the cup has worn out. Body materials are selected from any essentially low- or non-resilient material, including glass, hard plastic (such as polycarbonate), wood, metal or ceramic, and may be colored. The head may be domed or flat, and may be decorated, as by etching, embossing or painting with the winemakers or winery mark. The inventive compound bungs/bodies that are identified by such marks may be sold as collectibles or as commemorative devices.

Abstract: A connector for a container, particularly a cask, comprises a bush (14), intended to be received in an opening (11) in the container through which liquid is discharged, in use. The bush has a closed end (17) with a weakened portion (18), an inner thread (20) and an inner deformable portion (21). Sealing means (23) are intended to be disposed between the exterior of the bush and the interior of the opening at the position of the deformable portion. An insert (15) is screw-threadedly engageable within the bush so as to deform the deformable portion, thereby effecting compression, and thus sealing, of the sealing means between the bush and the container.

Abstract: A sealing device for a barrel or the like, the barrel including an opening (22) arranged especially at the level of at least one bottom (14), characterized in that it includes, on the one hand, an attachment ring (24) located on the periphery of the opening (22) at the level of the outer surface of the bottom (24), connected to the bottom by any suitable manner, and, on the other hand, a sealing device having a first part (30) that can be wedged at the level of the opening (22) and a second part (32) that can be screwed onto the ring (24), the second part (32) as it is being screwed tending to increase the force of the pressure between the first part (30) and the opening (22).

Abstract: A sheet pressing apparatus assembled to a file processing equipment which has an input tray for stacking sheets and a pickup roller for feeding sheets. The sheet pressing apparatus includes a sheet pressing assembly movably mounted to the file processing equipment, a driving device including a connecting member and a stepping motor, a sensor unit and a control system. The sheet pressing assembly is driven by the stepping motor to be descending through the connecting member. When the sheet pressing assembly descends, the sensor unit touches the sheets and sends a signal to the control system, the control system figures out the thickness of the sheets by calculating steps the stepping motor having passed, then the control system makes the stepping motor further move with certain steps to drive the sheet pressing assembly further descend to apply a suitable pressure on the sheets.

Abstract: A universal lid closure for underground landscape and other utility access boxes uses flexible tongues depending from the underside of the lid and adapted to engage the interior of the access box, which box may have any one of various constructions. In one embodiment, the tongues have a plurality of diametrically opposed pairs of locking detents, each pair defining a different vertical position, to engage an annular locking shoulder on the interior of the box to secure the lid in the closed position.

Abstract: A hydraulic or other type of high-pressure hose fitting can be temporarily sealed using a special type of plug. The plug is made of a rubber like material and can be used both as a male plug or a female plug. The plug contains a plug body with a tapered end portion that can be pushed into and seal against the tapered seat of a female hydraulic fitting. The plug also contains an internal open ended bore that can be pushed over a male fitting with the threads of the male fitting tightly pressing into the rubber material to form a seal and minimize the plug being blown off the fitting.

Abstract: The object of the invention is a sealing device for a barrel or the like, said barrel comprising an opening (22) arranged especially at the level of at least one bottom (14), characterized in that it comprises, on the one hand, an attachment ring (24) located on the periphery of the opening (22) at the level of the outer surface of the bottom (24), connected to the bottom by any suitable means, and, on the other hand, a sealing device comprising a first part (30) that can be wedged at the level of the opening (22) and a second part (32) that can be screwed onto the ring (24), the second part (32) as it is being screwed tending to increase the force of the pressure between the first part (30) and the opening (22).

Abstract: A filter assembly is provided that includes a hood, a drain manifold, a filter disposed between the hood and the drain manifold, a drainage space that is disposed between and in fluid communication with both the filter medium and the drain manifold, a check valve that is configured to permit air to escape but not to enter the drainage space so that a siphon can be established that draws additional fluid through the filter medium and into the drain manifold, the siphon continuing until air entering the hood disrupts the siphon, and a check valve cap that is configured to permit air to escape the check valve while preserving an air-filled void above the check valve when the filter assembly is submerged.

Abstract: A closure for containers having an opening, comprising substantially rigid supporting and sealing means for insertion in a container opening, and a covering body made of flexible and resilient plastic material which covers at least a portion of and is connected to the supporting and sealing means, and is adapted to close the container opening. The supporting and sealing means comprise an upper and lower support and sealing element operatively joined together to support the covering body in a longitudinal direction to prevent elongation of the plastic material of the covering body.

Abstract: An obturator for an aperture (8) produced in a metal sheet (9) has a central dome (1), a peripheral lip (3) and an annular part (3) extending between the dome (1) and the lip (2). The annular part (3) has a shoulder (4). The dome (1) is adapted to deform between a starting position and a locking position of the obturator in which the dome (1) is turned inside out in relation to the starting position. The annular part is adapted to expand between the starting position and locking position and is maintained expanded by the inverted dome (1) in the locking position. The lip (2) is adapted to come into abutment against a face (9a) of the aperture (8) and the shoulder (4) is adapted to be in abutment against an opposite face (9b) of the aperture (8) in the locking position.

Abstract: A fermentation device and a method for making a substance using the device are provided. The fermentation bung may have an outer plug that includes a central inner annular hole and a one or more holes surrounding the central hole, the outer plug fitting within a bung hole in a barrel in which a substance is going to be fermented. The device may further include an inner plug with a centrally extending stem that frictionally fits into the central inner annual hole of the outer plug to secure the inner plug into the outer plug and also have a top portion which covers the one or more holes surrounding the central hole. During the fermentation of the substance, the gases produced during fermentation may be vented through the device since the top portion of the inner plug may flex slightly to permit the escape of the gas. However, the device prevents any ambient air from entering the barrel since the top portion of the inner plug is covering the one or more holes.

Abstract: The closure has a bung-type socket (10) of soft elastic material with a flange-like outer bearing portion (12), a circumferential sealing portion (16) sealingly receiving the rim of the hole, and a circumferential snap-action portion (18) engaging the inside of the rim of the hole from behind. In the sealing portion (16) and the snap-action portion (18) of the bung-type socket (10) there is embedded a coaxial reinforcing ring (20) of hard plastic, which is radially rippled over the circumference and thereby is covered by the soft-elastic material in thickness varying over the circumference. The bung-type socket (10) has a central orifice (24), in which a manually adjustable valve element (26) of the pressure-compensating valve occupies a sealing closed position and a pressure-compensating position.

Abstract: A bung hole plug formed of resilient synthetic material interfitted between a front and back plate. A threaded post is attached to the back plate, and used, in conjunction with a lock washer and nut, to draw the front and back plates together, thereby squashing the resilient plug against the side walls of the bung hole to maintain a fluid tight seal.

Abstract: A plastic closure cover for closing a collet opening in the body of a motor vehicle comprises a dish-shaped part 2 including a bottom 3 and a cylindrical side wall 4 whose outer surface is equipped with contact elements 5. The contact elements are designed as obliquely arranged wings 6 that extend at least over part of the surface at an acute angle to radial lines of the side wall 4.

Abstract: A main member of soft plastic material and a second member of hard plastic material, chemically compatible and thermally bonded together. The second member is partially slitted having a ring element embedded in the main member, and segments distributed circumferentially around the ring. The segments can be swung radially to facilitate insertion into a hole, and they spring outwardly to grip the panel in which the grommet is mounted. In one form the second member is entirely slitted, and thereby made up of separate segments or fingers.

Abstract: A resilient plug for sealing drilled holes in a solid surface to prevent the discharge from the hole of fluids or chemicals. The plug is of tubular shape and has a flat top surface and a tubular side wall from which a plurality of sealing ribs project to engage the side wall of a drilled hole. The ribs prevent the passage of fluids or chemicals from the hole.

Abstract: In accordance with the invention a frustoconically shaped stopper formed of silicone rubber approved by the FDA for use in wine making (such as methylvinylpolysiloxane elastomers) can be releasably sealed to a wine barrel, but still provide for sampling of the wine and/or release of the fermentation gases. In this way, all equipment needed for venting, heating and tasting wine can be placed and used in a convenient arrangement with minimum expenditure of time and effort. In one aspect, the stopper of the invention includes a central opening attended by an integral pliant plug having a shaft of length L.sub.0. The central opening is defined by a circular cross section and a length L (measured between an annular base and a truncated tip surface) where L.sub.0 is less than L. A side wall of thickness T is defined. The thickness T varies as a function of the length along the central opening. The side wall is rigid, however.

Abstract: The problem of providing tight-fitting closures for containers is solved by the closures and the methods of installing and removing closures utilizing a closure (20) which includes a central portion (21) and an annulus portion (22) hingedly connected to the central portion by a hinge (23) to enable at least a portion of the annulus portion to contract during insertion and removal operations. The annulus portion pivots to an expanded position to become compressed between the central portion and the orifice surface (25). A retaining portion (68) in a modified form of closure serves to hold the outer edge of the annulus portion relative to movement of the central portion and to prevent premature removal. In installing and removing, the closure is readily adapted to be turned at an angle to the axis of the orifice for easier insertion and removal and for bung-type closures the filler apparatus for a beer barrel is useful in installing these closures.

Abstract: A stopper for a pressure container comprises a hole fitting and an inner core for sealing engagementin a generallycylindrical inner bore of the hole fitting. The hole fitting has an annular external groove for receiving a generally circular edge of the container which edge defines an opening in the container. The part of the hole fitting immediately below the groove is of larger external diameter than the opening in the container, and the core has a non-sealing section of less external diameter than the internal diameter of the adjacent length of the bore. Such a stopper is easier to insert in the container opening.

Abstract: In order to avoid the necessity of having a range of sizes of tools for the mounting and removal of a plurality of resiliently deformable plugs of different transverse dimensions on the ends of associated tubes, there is provided a plurality of such plugs which can all be mounted on, or removed from, the ends of the associated tubes using the same tool. In the plugs, each of which comprises a circular disc portion, an annular skirt portion projecting from the periphery of the disc portion to one side thereof, and a pin member which projects in the direction of the longitudinal axis of the plug from the center of the disc portion to said one side thereof, with the skirt portion presenting an outwardly directed annular closure member having an outer diameter which is reducible by resilient deflection of the disc portion to either side thereof, the transverse cross-sectional dimensions of the pin members of the plugs are the same.

Abstract: Metal can for containing a beverage, comprising an end provided, near its edge, with an opening closed by a leakproof capsule retractable to the inside of the can. The opening is extended by a tubular element turned towards the interior of the can and the capsule is made of a semi-deformable rigid material comprising a disc of diameter slightly greater than the diameter of the element and a skirt whose diameter is at most equal to the diameter of the element, the end of the skirt opposite the disc being provided with an external protuberance forming a stop for the capsule against the end of the element.

Abstract: A bung for the bung orifice of a pressurized beer barrel and the like including an outer shell having an external wall surface adapted for sealing engagement with the wall of the bung orifice and a closure head extending radially inwardly from an attachment at an intermediate point on the inside of the outer shell. The outer shell and closure head preferable are an integral molded plastic unit exhibiting yieldability and resiliency.