Abstract: The present invention relates to a secondary battery in which an electrode tab is improved in mechanical strength and a method for manufacturing the same. Also, the secondary battery according to the present invention includes: an electrode provided with a coating portion coated with an active material on an electrode collector and a non-coating portion on which the active material is not applied to the electrode collector in a longitudinal direction of the electrode collector and a notching tab part extending from the coating portion in a width direction of the electrode collector without coating with the active material and overlapping each other to form two or more layers when the electrode is wound.

Abstract: An extraction capsule which contains a substance for preparing a liquid food, includes an extraction-side base with an outlet opening and a lateral wall which adjoins the base and has a terminal flange that is aligned radially outwards, and an injection-side filling opening which is closed by a sealing film. The extraction-side base has a peripheral edge region and a circumferential joint point which adjoins a base that lies in a first position on a plane prior to being used. The base can be brought from the first position into a second position which lies closer to the film sealing the filling opening. The extraction capsule has a console which is molded on the lateral wall and directly and/or indirectly on which an extraction-side sealing film to be perforated lies, with a perforator passing through the sealing film in the second position.

Abstract: A headrest stay is manufactured with a metal round pipe having a predetermined length and a predetermined thickness by performing a boring process on the metal round pipe by a cutting length of 5 mm or more from each of both distal ends of the metal round pipe to form a thin-walled portion that is thinner than the predetermined thickness; forming each of the distal ends of the metal round pipe into an curved chamfered shape having a radius of 5 mm or more by inserting each of the distal ends of the metal round pipe into a cylindrical hole; and bending the metal round pipe to have a shape of the headrest stay.

Abstract: This chassis (2) is made of a clad material in which a first layer (21) made of austenite stainless steel, a second layer (22) made of Cu or a Cu alloy, stacked on the first layer, and a third layer (23) made of austenite stainless steel, stacked on the side of the second layer opposite to the first layer are roll-bonded to each other, and the thickness of the second layer is at least 15% of the thickness of the clad material.

Abstract: The present invention relates to a brazing method for a component (100) of an air-conditioning circuit comprising a fluid refrigerant receiver (200), said receiver containing a desiccator (210) for said fluid refrigerant. Said method includes the steps consisting of: equipping said receiver (200) with confinement means (221, 222) capable of insulating said desiccator (210) from said component (100); assembling and brazing together said receiver (200) and said component (100); releasing said confinement means (221, 222). The invention also relates to a fluid receiver intended in particular for implementing such a method, with application to the air conditioning of motor vehicles.

Abstract: An assembling method of a vehicular air-conditioning apparatus including various equipment, which is required for air-conditioning a vehicle, mounted in a vehicular-air-conditioner frame on a production line includes modularization of, among the various equipment, at least a compressor, an indoor heat exchanger, and an outdoor heat exchanger off the production line, and, further, modularization of a refrigeration cycle by connecting the above modules with refrigerant pipes off the production line, as well as incorporating the modularized refrigerant cycle into assembly work on the production line as a refrigerant cycle module.

Abstract: Techniques for packaging and utilizing solid hydrogen-producing fuel are described herein. The fuel may be in the form of a bonded/compressed powder, granules, or pellets. The fuel is packaged in cartridges having hydrogen-permeable enclosures. In operation, the fuel undergoes a hydrogen-releasing Thermally Initiated Hydrolysis (TIH) reaction. A cartridge may comprise one or more fuel chambers, and several cartridges may be assembled together.

Abstract: A method and apparatus for manufacturing a catalytic converter is described where the catalytic converter is comprised of an outer tube member having a monolith substrate internally compressed therein with a wrapped mat material surrounding the monolith substrate and intermediate the outer tube. One or more monolith members can be applied within the outer tube and heat shields may also be applied internal to the outer tube and adjacent to the monolith substrate. The assembly of the catalytic converter includes measuring the sequence of compression of the mat material to the monolith substrate in order to understand the possible force characteristics that can be applied during the assembly thereof. The mat material is therefore compressed within the outer tube by way of compression jaws, by compression rollers, by spinning and/or by a shrinker including compression members. The compression of the mat material can be in single or multiple steps.

Abstract: Methods for manufacturing a front portion of a bottled water dispenser are provided. The methods include forming a top panel and a bottom panel from sheet metal, such that the top and bottom panels exhibit an exterior surface that is convex. The top and bottom panels are formed by bending a left and right side portion thereof inwards, in order to create the convex exterior surface of the top and bottom panels. The methods further include forming a middle panel from sheet metal, such that an exterior surface of the middle panel is concave. The middle panel is formed by applying a draw force to the center portion of the middle panel to create the concave exterior surface—and bending the left and right side portions of the middle panel inward. The bottom, middle, and top panels may then be connected to each other.

Abstract: To provide a sealing structure which seals a container body and an aerosol valve without providing a seal member between them, an aerosol container equipped with the sealing structure, and a method for manufacturing the aerosol container, An aerosol container comprising a bottomed cylinder like container body 11 and an aerosol valve 12 firmly fixed to the opening of the container body. A seal structure between the container body 11 of an aerosol container 10 and an aerosol valve 12 is formed of a valve support portion 14 of the container body and a step portion 28 of the aerosol valve.

Abstract: Methods for manufacturing a front portion of a bottled water dispenser are provided. The methods include forming a top panel and a bottom panel from sheet metal, such that the top and bottom panels exhibit an exterior surface that is convex. The top and bottom panels are formed by bending a left and right side portion thereof inwards, in order to create the convex exterior surface of the top and bottom panels. The methods further include forming a middle panel from sheet metal, such that an exterior surface of the middle panel is concave. The middle panel is formed by applying a draw force to the center portion of the middle panel to create the concave exterior surface—and bending the left and right side portions of the middle panel inward. The bottom, middle, and top panels may then be connected to each other.

Abstract: A double-layer vacuum container includes: an inner container having a bridging member supported by an outer container in a bridging manner; the outer container through which the bridging member extending from the inner container is externally exposed; and a cover member for externally covering the portion of the outer container through which the bridging member is exposed and for sealing a space inside the cover member and a space between the inner container and the outer container in a vacuum state between the cover member and the outer container. With such a structure of the double-layer vacuum container, the inner container other than a lip is supported by the outer container with a good heat retaining property to prevent the displacement or damage of the inner container.

Abstract: A cargo container that includes a U-shaped panel, and/or an L-shaped panel is disclosed. The cargo container has a top, bottom, and two sides, each U-shaped and/or L-shaped panels forms part of the top and a side, or the bottom and a side. The cargo container may further include doors with hinges and/or doors that slide. Landing gear may support the container when not in transit. The U-shaped and/or L-shaped panels may be inhomogeneous in size and thickness to reinforce the areas of highest stress concentration such as the container edges or the attachment location of the landing gear. The cargo container may also have a bottom floor with a greater thickness than each of the significantly parallel sides, or a bottom floor with parallel or interconnected support protrusions. The U-shaped and/or L-shaped panels may include internal support structures. Also disclosed is a method of manufacturing U-shaped and/or L-shaped panels.

Abstract: The invention relates to an adapter (1) for sleeves (20) with elastomer cable seals (28), comprising at least one tubular element (3) and a support element (2), the support element (2) comprising means for fastening the support element (2) to a lower housing part (21) of a sleeve (20) and to a method for introducing a fiber-optic cable into a sleeve (20) using an adapter (1).

Abstract: An improved support assembly comprises a layered construction comprising a main body sandwiched between upper and lower covers. Each layer of the support assembly may receive and support at least one device. A method of use and manufacture of the support assembly are also provided.

Abstract: A fuel tank comprises an upper-half tank body (7) and a lower-half tank body (8) which are made of bowl-shaped steel plates and which integrally include a flange (7f) and a flange (8f) in their peripheral edges, respectively, the flanges (7f, 8f) being superposed on and liquid-tightly connected to each other. The flanges (7f, 8f) are connected together by crimping into a roll shape to form an annular thick-walled connection (12), and an annular reinforcing rib (7r, 8r) leading to the connection (12) is formed at least in one of the upper-half and lower-half tank bodies (7, 8). Thus, it is possible to provide a fuel tank in which a sufficient strength can be imparted to portions around a flange connection, without particularly increasing the thickness of a steel plate.

Abstract: A package suitable for containing marking material used in a printing machine. The package includes a package surface adapted to engage one or more surfaces of the printing machine and a material identifier mechanism for verifying the marking material. The package may also include a material pouch, which is adapted to contain the marking material, joined with or formed in the package surface. Alternatively, the package may include a carrier adapted to engage one or more surfaces of the printing machine and a material pouch joined with the carrier. Other aspects include a method of remanufacturing a package suitable for containing marking material used in a printing machine.

Abstract: A flexible production process for fabricating a heat pipe, having the processes of (a) performing pre-process on a heat-pipe material, (b) performing annealing process on the heat-pipe material, (c) introducing working fluid into the heat-pipe material, (d) removing non-condensable gas from the heat-pipe material, and (e) sealing the openings of the heat-pipe material. The heat-pipe material can be disposed into a laminar flow box between any of the steps (a) and (b), (b) and (c), and (c) and (d).

Abstract: A method for forming a heat spreading apparatus for semiconductor devices is disclosed. The method includes extruding a frame material to form multiple individual cells including fillable openings within the frame material; filling a first group of the individual cells with one or more high thermal conductivity materials; filling at least a second group of the individual cells with one or more materials of lower thermal conductivity than in the first group of the individual cells; and implementing a reflowing process following filling the multiple individual cells so as to infiltrate the materials within the individual cells, wherein defined walls of the frame material remain following the reflowing.

Abstract: Systems and methods are provided wherein a tube insert is at least partially disposed within the end portion of a tube. An alignment fixture can be used to assist in forming an aperture through the wall of the tube at a predetermined location that is aligned with at least one cavity in the outer surface of a tube insert.

Abstract: A filter assembly comprising a cover plate and a filter support. The filter support includes a length extending perpendicularly from an edge of the cover plate, a first edge and a second edge defining a height, a first U-shaped filter support extending from the first edge and a second U-shaped filter support extending from the second edge. The first U-shaped filter support and the second U-shaped filter support are configured to hold a filter there-between.

Abstract: The fire extinguisher of the present invention includes a container housing a fire inhibiting material which may automatically discharge its fire inhibiting contents in response to a fire. In one exemplary embodiment, the fire inhibiting material is pressurized within the container and the container is structured and arranged to discharge its fire inhibiting contents in a predetermined direction. Also, a method is provided for constructing a container for holding fire inhibiting contents under pressure and a method and apparatus for effectively and efficiently filling and pressurizing the container with fire inhibiting material, forming a container structured and arranged to expel the fire inhibiting material contained therein in a predefined direction in response to a fire.

Abstract: A heat spreading apparatus for use in cooling of semiconductor devices includes a frame having a plurality of individual cells formed therein, each of the cells configured for filling with a material of selected thermal conductivity therein. The selected thermal conductivity of material within a given one of the cells corresponds to a thermal profile of the semiconductor device to be cooled.

Abstract: This invention is related to a metal hydride storage canister, comprising a storage canister body, a wafer baffle stacked on the body for containing metal hydride of a pre-determined amount, and a tubing having a porous surface for securing the wafer baffle in the body and for guiding hydrogen discharged from the metal hydride to an outlet of the body. This invention further discloses the manufacture of the storage canister.

Abstract: This invention is a self-emptying tank for processing fluids having included solids, such as stainless steel tanks in wineries. The tank has a shell section having a lower end that is fixedly joined to the top perimeter of the tank's bottom section, at a non-horizontal junction. Preferably, the shell section is nominally a right circular vertical cylinder having front and back faces, the front face being vertically longer than the back face, which increases the cylindrically-shaped area available at the front of the tank for instruments and other ancillary devices. The formed junction between the shell section and the bottom section slopes downward from the back face to the front face of the shell section. At the bottom front of the bottom section of the tank is an outlet portion surrounding an outlet aperture, which provide a vertical, or close to vertical outlet from the tank that is preferably on the same or close to the same vertical plane with the front face of the tank.

Abstract: A method is provided for forming a catalytic converter that includes a catalyst substrate having a noncircular circumference and surrounded by a metal housing. The catalyst substrate is initially measured to determine the radial dimension of the substrate circumference relative to a central axis. The substrate is wrapped in a compressible mat and arranged within a metal tube. The arrangement is subjected to a spin-forming process that forms the metal tube about the catalyst substrate. The spin-forming process includes rotating the metal tube about the substrate axis, while concurrently urging a metal-forming tool against the metal tube. The metal-forming tool is programmed to follow a metal-forming path corresponding to the substrate circumference plus a predetermined radial distance. In this manner, a metal housing is formed having a noncircular circumference corresponding in shape to the catalyst substrate and spaced apart by a uniform insulative layer.

Abstract: An exhaust gas sensor is provided and formed by attaching the sensor's upper shield and shell. The attachment is attained by bending a protruding segment or lip over a terminal end portion of the lower shield. This produces a single sealing surface and eliminates the requirement of a conventional crimp which places high compressive forces on the sensing element.

Abstract: In a hot plate for performing heat processing while an inert gas is supplied, a mounting table is provided with a groove and a lower end portion of a lid body can be inserted into the groove. The lid body is lowered in two steps by a lid body drive apparatus. The lid body forms a processing chamber between the lid body and the mounting table by the lowering of the first step, and the lower end portion of the lid body is inserted into the groove by the lowering of the second step, thereby reducing the processing chamber in capacity. Consequently, in a substrate processing apparatus which requires a supply of gas, it becomes possible to reduce the capacity of the processing chamber and to reduce the required amount of gas.

Abstract: In a hot plate for performing heat processing while an inert gas is supplied, a mounting table is provided with a groove and a lower end portion of a lid body can be inserted into the groove. The lid body is lowered in two steps by a lid body drive apparatus. The lid body forms a processing chamber between the lid body and the mounting table by the lowering of the first step, and the lower end portion of the lid body is inserted into the groove by the lowering of the second step, thereby reducing the processing chamber in capacity. Consequently, in a substrate processing apparatus which requires a supply of gas, it becomes possible to reduce the capacity of the processing chamber and to reduce the required amount of gas.

Abstract: A pressure vessel suitable for use in an automotive air-conditioning system includes a cylindrical body (10, 40) including an annular wall (14, 44). The cylindrical body preferably includes an opposite closed end, an initially opened end (12, 42), and a closure member (20, 50) inserted into the open end of the cylindrical body. The closure member and the cylindrical body each have extensions or annular flanges (28, 58) which are spin welded together. The cylindrical body is fused to the closure member when the annular flange (28, 58) of the closure member is spin welded to an annular, outermost portion (18, 48) of the cylindrical body. The closure member and the cylindrical body are further locked together by inwardly rolling a portion of the annular wall into an annular groove (30, 60) and an outermost surface of the closure member.

Abstract: This invention relates to a process for manufacturing prefilled syringes where at least one of the syringe components is manufactured in at least a class 100 environment. The process includes the steps of manufacturing syringe components, such as the barrel and plunger substrate, within at least a class 100 and MCB-3 environment; manufacturing syringe components, such as the plunger cover and tip seal in an environment less clean than a class 100 environment; decontaminating the plunger cover and tip seal; lubricating at least one of the barrel, plunger substrate, plunger cover and tip seal; assembling the barrel and tip seal to form a barrel/tip seal combination; assembling the plunger cover and plunger substrate to form a plunger; filling the barrel/tip seal combination with a predetermined amount of fluid; and final assembling of the prefilled syringe by inserting the plunger into the barrel/tip seal combination.

Abstract: A solid high silicon cast iron elongated anode has a midpoint electrical connection keeping the connection as far as possible from the ends to combat the deleterious pencil effect. The anode is made by casting using a hollow or shell core to form a small axial hole extending from one end. The sand or foundry material of the core is removed and the wall of the hole at the blind end of the hole is at least partially finished to receive a diagonally split slug to which a lead wire is connected. Alternatively the hole is formed by a steel pipe which is left in place as a hole liner. The pipe may be supported by one or more chaplets. The slug is fastened in the blind end of the hole by a driving tool rotating a threaded headed bolt with both axial and rotational force to hold the connection in the blind end of the hole as it is secured in place. The hole is filled with a potting compound sealing the connection in the center of the solid cast iron anode.

Abstract: Process for the manufacture of a containment element for a fluid heated to a temperature exceeding 850.degree. C. A blank made of a refractory metal alloy is coated with a glass-based adhesive, at least one film made of a glass suitable for the material and the plasticity temperature of the blank is laid down on it, the blank is heated to the plastic temperature and subjected to a first stamping operation to shape the chamber of the containment element, followed by a second stamping operation to form the inner or outer flaps of the chamber. The element is then cooled, and finally, heat-treated.

Abstract: A metallic vacuum double-walled container and manufacturing method therein is provided in which an inner container and outer container are both formed from a metal. From among the aforementioned, at least the outer container possesses a body which is formed by rolling a steel plate with a Vickers hardness of 250.about.600. The outer container is then shaped into a cylindrical body, and joined to a processed inner container at their mouth portions to form a metallic double-walled container. This metallic double-walled container is then heat treated at a temperature of 200.degree..about.600.degree. C. under a vacuum, and the space between the two walls of the metallic double-walled container is vacuum sealed to form the final product.

Abstract: A rectangular nickel-metal hydride secondary cell permits improving the air-tightness and-also permits preventing a metal case from being deformed in the step of folding an open end portion of the metal case.

Abstract: A motor-vehicle latent-heat storage unit is made by first positioning an elongated rectangular sheet-metal blank over a longitudinally extending slot formed in a die and then pressing an elongated anvil bar forming one of a pair of ultrasonic welding tools down against the blank over the slot to push the bar and the blank into the slot. This imparts to the blank a U-section and leaves longitudinally extending edge regions of the blank projecting out of the slot past the anvil bar. These edge regions are then folded transversely one after the other inward over the bar to form the blank into a tube with the edge regions overlapping each other. The other of the ultrasonic welding tools is subsequently pressed against the overlapped edge regions and therethrough against the anvil bar to ultrasonically weld together the overlapped edge regions along a full length of the tube. Finally the welded tube and the bar are moved longitudinally relative to each other to separate the tube from the bar.

Abstract: A lighter and faster bullet with a copper jacket and an aluminum core which is formed by first folding or rolling sheets of a thin metal such as aluminum foil into a cylinder and then inserting the cylinder into the jacket. The cylinder is then compressed within the bullet jacket without damaging the jacket by means of a bullet press. To increase the weight of the projectile, lead or other metals of different specific gravities are added to the jacket prior to insertion of the cylinder and compression.

Abstract: Disclosed is a method of making capsules of dehydrated sludge which can omit conventionally required unit operations, reduce or eliminate the cost of the equipment and power, heat energy and consumables required for operation, and assures simple operation. The method includes the steps of shaping a steel strip into the form of a channel, supplying sludge into the channel formed in the previous step, shaping the channel formed steel strip with the sludge charged therein such that it has practically a circular cross-section to enclose the sludge, pressing and crushing an outer periphery of a steel tube shaped in the previous step to form a constriction, pressing and cutting the constriction and repeating series of the above-described steps.

Abstract: A receiver-dehydrator assembly for use in an automobile air conditioning system is provided which incorporates a seamless, aluminum canister with universal-style inlet-to-outlet connector construction. The universal orientation feature consists of an octagonal perimeter at the top of the canister, which accommodates location of the outlet connector in relation to the inlet connector in any 45 degree radial increment. Mechanical joining processes are employed during the manufacturing of this assembly, so as to maximize the cleanliness and dimensional integrity of the assembly. The versatile, one piece canister design provides a clean, seamless, leak free integral assembly.

Abstract: This invention relates to a method of making a double-walled thermally insulating metal container comprising an inner casing and an outer casing having an evacuation opening. A quantity of joining material is placed near or on the evacuation opening so as to cover the opening partially or completely. The assembly is treated in a vacuum furnace to evacuate the insulating space, to melt the joining material and to solidify the joining material in situ to provide vacuum sealing without resorting to a conventional sealing plate.

Abstract: An improved method for sealing an electrochemical cell comprises applying radial forces to an expanded, upper portion of the cell casing. A resilient sealing member is located in the upper portion so that when the radial forces reduce the diameter of the expanded casing portion the sealing member is compressingly held in place.

Abstract: The invention relates to a process for the manufacture of a vehicle visor (2), of the type comprising a rigid core (1) enclosed in a fabric cover, according to which a fabric pocket (12) is produced, comprising on one of its sides (13) an opening (14) defined by lips, the core (1) is inserted into the pocket (12) through the opening (14) and the opening (14) is closed to form the cover. According to the invention, the lips (15, 16) of the opening (14) are first of all stiffened and the opening (14) is closed by inserting the stiffened lips (15, 16) into a groove (21) provided on the corresponding edge (6) of the core (1).

Abstract: A method of purging and sealing a heat pipe includes brazing an end cap to the end of a heat pipe. The end cap has a hole therethrough, through which the heat pipe is charged. After charging, the heat pipe can be sealed simply by pinching the end cap to cold weld the hole shut, and at the same time any excess portion of the end cap can be severed off. Using this process the end cap takes up less of the condensor zone, providing for more efficient heat exchange. Additionally, the seal is more reliable.

Abstract: Disclosed is a resealable vent, reinforced cover assembly for sealing a rechargeable electrochemical cell. Also disclosed herein, is a method of fabricating a reinforced cover assembly for a rechargeable electrochemical cell, a method of employing said cover assembly to seal a rechargeable electrochemical cell, and a vent, rechargeable electrochemical having a hydrogen storage alloy electrode and a resealably vented, reinforced cover assembly.

Abstract: A method of manufacturing a desiccant assembly for a refrigeration circuit of the type used in automotive air conditioning systems. The method includes performing a container body by cutting a piece of seamless tube stock and friction forming one end of the tube to form an end wall. One or more apertures are formed within the container body to accommodate refrigerant circuit fittings. A refrigerant tube is installed in the container body along with associated components such as the desiccant material, additional fittings etc. Thereafter, the container body is again friction formed to enclose the opposite end wall of the container. The method according to this invention avoids the disadvantages associated with a multi-piece desiccant container which is subject to refrigerant leakage.

Abstract: A liquid shock absorber device including a plastic cylinder having first and second ends, a piston rod having a first end within the cylinder and a second end externally of the cylinder, a plastic seal formed integrally with the cylinder at the first end and defining an opening for receiving the piston rod in sealing relationship, a closure for closing the second end of the cylinder, and fluid in the cylinder. The closure on the second end may have a piston associated therewith for preloading the fluid.

Abstract: A sorbent type filter assembly (10) which is made by sequentially placing a first resilient perforated plate (40), a first retention filter (36), a sorbent bed (34), a second retention filter (38), a second resilient perforated plate (42), and a cover (14) within the cylindrical portion (16) of a canister shell (12). The cover (14) is forced downwardly to compress the sorbent bed (34) and to resiliently spring bias or stress the first resilient perforated plate (40). While the parts are held together under compression, an annular edge portion of the cylindrical shell is rolled into a circumferentially extending groove on the canister cover to hermetically and mechanically hold the parts together in their assembled and compressed relationship.

Abstract: A strong, seamless one-piece metal bottle of substantially uniform wall thickness for containing and dispensing gas under pressure is produced from a flat metal piece by a series of deep-drawing operations to provide an elongated cylindrical shell having an open end mouth and a slight flange thereabout. A dimple is formed in its bottom end wall. The flange and an adjacent cylindrical open end mouth portion of the shell is then severed from the main body, and the wall thickness of the new open end mouth portion is tapered from the cylindrical side wall of the shell towards its mouth edge. Thereafter, the tapered open mouth end portion is turned or swaged inwardly into a somewhat blunt, rounded-in nose portion of a substantially uniform thickness that substantially corresponds in the thickness to the side and bottom walls of the formed metal bottle and that has an open end of reduced size suitable for mounting a nipple, ferrule or valve fitting therein.

Abstract: This invention relates to a capsule for pressings pressed by isostatic pressure and to these pressings used for extruding metallic objects, particularly tubes, of stainless steel, the outer and inner wall of the capsule consisting of thin-walled sheet metal, and at least the outer wall having substantially the same strength properties in the axial direction along its circumference and particularly consisting of a spiral-welded tube, and preferably at least on the front end of the capsule an insert being provided, which consists of one or more pieces of a ductile solid material or a ductile material pressed from powder. The invention further relates to a process for the production of such capsules and pressings and to a process for extruding tubes and to the tubes obtained according to this process.

Abstract: The present invention relates to the method of manufacturing a pressure vessel for use as a hydraulic accumulator, pulse dampener or like apparatus employing an elastomeric bladder member, from a cylindrical member which includes the steps of deforming a first end of the member to provide an essentially hemispherical portion having an oil port, installing the elastomeric bladder assembly within said cylindrical member while the other end of said member remains in its essentially cylindrical configuration, and thereafter inwardly deforming the second end of said member while heating the same, said last mentioned heating and deforming steps being carried out while injecting through the last mentioned end a stream of cooling fluid which follows the internal wall portions of the bladder to minimize the possibility of heat damage to the bladder.