37results about "Hollow articles" patented technology

A tool for making simultaneously a plurality of parallel friction stir welds includes at least one shank for holding in a chuck or collet of a friction stir welding machine, a plurality of friction stir welding pins, and friction stir welding shoulders including at least four working surfaces adjacent said ins, the shoulders and pins mounted in axial relationship; dimensions of said friction stir welding pins and shanks corresponding to dimensions and spacings of said friction stir welds.

A very low pressure gas or blow forming process for shaping a bulk metallic glass (BMG) in its supercooled liquid state that avoids the fractional stick forces experienced by conventional shaping techniques by engineering the expansion of a pre-shape or parison of BMG material such that substantially all of the lateral strain required to form the final article is accomplished prior to the outer surface of the parison contacting the surface of the shaping apparatus is provided. The capability offered by the inventive shaping process to avoid the frictional forces exerted by the shaping apparatus surface allows for the formation of precision net-shape complex multi-scale parts and components using processing conditions inaccessible by conventional processes.

A multi-layer packaging film is provided having at least four layers arranged in sequence comprising: (1) a heat-sealing first layer comprising at least 50% by weight of a copolymer of propene, and at least one α-olefin selected from the group consisting of ethylene, butene-1, methylpentene-1, hexene-1, octene-1, decene-1 and mixtures thereof, said copolymer having a propene content of at least 60 wt. %, a Tm between about 100° C. and about 145° C., a Mw/Mn of between 1 and 5, and n-hexane extractables of less than 4 wt. %; (2) second and fourth layers each comprising (a) at least 10 wt. % of a first copolymer of ethylene and at least one C₄-C₈ α-olefin, said copolymer having a density of from 0.900 to 0.915 g/cm³ and a melt index of less than 2 dg/min., (b) at least 10 wt. % of a second copolymer of ethylene with from 4 to 18 wt. % of a vinyl ester, alkyl acrylate, acrylic or methacrylic acid, and (c) from 0 to 60 wt. % of a third copolymer of ethylene and at least one C₃-C₈ α-olefin having a density less than 0.900 g/cm³ and a melting point less of between 65-98° C.; and (3) a third layer comprising at least 80% by weight of at least one copolymer of vinylidene chloride with from 2-20 wt. % (based on said copolymer) of vinyl chloride or methyl acrylate.

Sulfonated aromatic copolyesters and articles made therefrom, and processes for producing the sulfonated aromatic copolyesters and articles are provided. Articles that can be made from the sulfonated aromatic copolyesters include films, coatings and laminates. Some of the compositions and articles are biocompostable. The films can further be used to form shaped articles such as sheets, food packaging such as sandwich wraps, thermoformed containers, and coatings for, for example, films and other substrates. The sulfonated aromatic copolyesters contain a hydroxyalkanoic acid component.

A method of preparing a composite element for forming a composite assembly having a cavity is disclosed. The method includes laying a barrier layer on a surface of the composite element which defines at least part of the cavity. A support assembly including a mandrel (38) and a film bag (40) extending on the surface of the mandrel is positioned with the film bag against the barrier layer. A sealed enclosure containing the composite element is formed through sealing engagement with the film bag. The pressure within the sealed enclosure is reduced, and the mandrel is separated from the film bag while maintaining the film bag positioned against the barrier layer. In one embodiment, the element is a stringer and is positioned against a skin. An assembly for forming a composite member is also provided.

Herein is disclosed a modified ethylene vinyl alcohol polymer (EVOH) comprising an oxygen scavenging functional group. Preferably, the modified EVOH comprises structures IV, V, and VI:

wherein x is an integer greater than or equal to 1, y is an integer greater than or equal to 1, z is an integer greater than or equal to 1, and R comprises a cycloalkenyl group.

The modified EVOH is useful in oxygen barrier applications, such as a forming an oxygen barrier layer of a packaging article.

Also disclosed are methods of modifying ethylene vinyl alcohol polymers, and using the modified EVOH to make packaging articles with a superior barrier to entry by atmospheric oxygen.

A method of making a cylindrical pressure vessel (11) with a large diameter port in its sidewall includes the step of providing a mandrel (23) of desired diameter and filament winding upon the same. After winding one overall innermost layer, an annular reinforcement belt (16) is helically wound atop a defined region using a band (60) of resin impregnated parallel strands (39) under tension. The annular belt (16) is then itself helically overwound with the resin impregnated parallel strands of filamentary material under tension to provide two complete outer layers. After curing and removal from the mandrel (23) at least one aperture (71) is cut in the sidewall within the reinforcement belt (16) and a side port fitting (75) is installed in the aperture (71).

The invention is to a device and method, for cutting a can blank in which case an end section of the can blank is severed. The can blank is moved by means of a conveyor arrangement at a constant speed about a first axis of rotation. Preferably, a laser beam is used as the cutting means. A deflecting arrangement deflects the laser beam to a focal point where the side surface of the can blank is located. Due the rotation of the can blank about its longitudinal axis, the axial end section of said can blank is severed. The focal point of the laser beam does not change relative to the longitudinal axis of the can blank during the laser cutting operation.

A fuel injector comprising a hollow body for housing a metering valve with a calibrated pipe for outlet of the fuel from a control chamber. The calibrated pipe is normally kept closed by a shutter controlled by an electromagnet comprising a magnetic core and an electric coil housed in an annular slot of the core. The coil outer cylindrical surface forms a gap with the annular slot so as to be lapped by the fuel coming out of the calibrated pipe. The coil comprises a bobbin having a pair of appendages for supporting electric supply plugs, which are englobed at least in part in a block of non-magnetic material. The bobbin has a substantially cylindrical rib, one flange adjacent to an end portion of the plugs, and another flange having a smaller diameter that forms a passage for the fuel between the calibrated pipe and the gap.

A process and apparatus for forming a part having an integral feature in which a heated parison is positioned in a mold having opposed movable mold sections, each having a face. At least one of the mold sections includes an opening spaced from the face. The mold further includes a movable pressing member positioned adjacent to the opening. A portion of the parison extends through the opening during formation. The pressing member is moved to compress the parison portion to form an integral feature on the part.

A method of manufacturing a metal cannula is disclosed. The method includes the step of providing a metal cannula having a longitudinal axis and defining a fluid channel. Next, the metal cannula is pressed to substantially close the fluid channel and define a first segment and a second segment. In a next step, the metal cannula is cut to separate the first segment from the second segment of the metal cannula. Each of the first and second segments have a pressed edge. The pressed edge substantially seals the fluid channel and has two pressed corners. Afterwards, each of the pressed corners are cut from the pressed edge of the first segment to define a pair of side openings and a distal blunt edge on the first segment. The side openings are in fluid communication with the fluid channel.

The invention discloses a cup body processing method. The method includes the steps for a first cup body middle piece of an opening to be formed, the opening is trimmed according to the given size, and an opening forming blank is formed; then, the opening of the opening forming blank is inwards coiled to be round to form an opening coiled body which is marked as a second cup body middle piece; and the opening coiled body is pressed in the axial direction of a cup body, and a containing cavity in the opening coiled body is eliminated. According to the basic principle of the cup body processing method, the container opening is internally turned and pressed flatly so as to eliminate the opening containing cavity, so that dirt cannot be accumulated in the container opening.

Disclosed is a bedroll protector configured to store and transport a bedroll. The bedroll protector comprises an elongated substantially rectangular bag body with an openable flap or sheet for receiving a bedroll. The protector may be placed on the ground in an unrolled configuration to receive and insulate a user's bedroll from damp and dirty ground conditions. In one embodiment, the bedroll protector comprises waterproof material. In another embodiment, the protector comprises waterproof material on the side that engages the ground and water-resistant breathable material on the protector's opposite side. Upon receiving a bedroll, the bedroll protector may also be rolled up and secured in such position by accompanying straps to enable storage and transportation of the bedroll.

A hollow molded article is obtained by molding a thermoplastic polyester composition comprising a blend of reinforcing fiber glass, polybutylene terephthalate with a melting point of 210 to 230° C. and polyethylene terephthalate with a melting point of 240 to 260° C., wherein at least 10% of the outer surface of the article has a continuous glossy region with a gloss of at least 75 gloss units, as measured at 60 degrees in accordance with ASTM D523 and wherein the gloss varies from the average less than 10 gloss units in the glossy region. A gas-assisted injection molding process is also disclosed for making such hollow molded articles, which articles can have various uses, including handles for appliances or the like.

The invention discloses an automatic feeding hopper turnover mechanism of a plastic container forming machine. The automatic feeding hopper turnover mechanism is characterized by comprising a frame consisting of transverse strips, vertical strips and oblique strips, wherein the frame is connected with a lifting and turnover mechanism; the lifting and turnover mechanism comprises a box rack consisting of transverse rods, vertical rods and oblique rods; rotating components are arranged between the vertical rods and the vertical strips, and the box rack is rotationally matched with the frame through the rotating components; a cylinder support is arranged at the front ends of the transverse strips of the frame, the cylinder support is connected with a cylinder, a piston rod of the cylinder isconnected with the front end of a rotating rack, and the rear end of the rotating rack is connected with the vertical rods of the box rack; and the box rack is in contact with a blank holding box. When the machine works, the blank holding box filled with plastic bottle blanks is artificially placed on the box rack, the cylinder is started, the piston rod of the cylinder upwards jacks and pushes the rotating rack, the rotating rack drives the box rack to incline to one side through the rotating components between the connected vertical rods and vertical strips, and the plastic bottle blanks inthe blank holding box are automatically poured into a storage barrel; and the machine is simple and convenient to use and high in speed, and reduces the labor intensity of personnel.

Optimizing an "improper" combination, a combination consisting of an even plate or shell and a conceptually irregular set of reinforcing stiffeners, enables to attain said combination's hitherto unknown unique synergetic attribute, the attribute of total disappearance of local buckling phenomena of said combination when compressing thereof up to destruction of structural material(s) thereof, and therefore enables to utilize strength potentialities of the material per se utterly, just us utterly as when stretching thereof, and besides irrespective of plates/shells shape and size, irrespective of structural materials' kind, volume and weight, and irrespective of operational temperatures and type of external load distribution, etc. Accordingly, given equal other conditions, cardinal weight reduction or bearing capacity's raise of thin-walled structure's bearing skin is attainable that can be utilized for any aerospace thin-walled structure, very extensively in naval engineering, and in civil engineering sometimes also; besides a reduction of expenditures, more efficient utilization of energy resources and hence enhancement of the environment of mankind is provided too. I call said synergic attribute "Superstability".

The invention relates to a metal packaging tin forming machining machine and machining method. The metal packaging tin forming machining machine comprises a working bottom plate, an intermittent driving device, a blanking device, a mounting plate and mounting bases, the working bottom plate is provided with the intermittent driving device, the blanking device is arranged above the intermittent driving device, and the blanking device is mounted on the mounting plate. The mounting bases are symmetrically connected to the left and right ends of the mounting plate. The following problems can be solved that when a traditional metal packaging tin is subjected to forming machining, only a metal plate with the fixed length can be cut, when metal tins with different diameters need to be manufactured, equipment needs to be replaced for machining, the working time is wasted, the machining efficiency of the whole device is reduced, and after blanking is completed, and when a blanking knife moves upwards, the metal coiled material is easily brought out, the tensioning degree of the metal coiled material is damaged, the whole working process is possibly interfered, and the blanking position is changed.

The invention particularly relates to a circular end cover edge spinning device and provides the circular end cover edge spinning device to solve the technical problems existing in the current large-caliber end cover skirt edge bending operation process. The circular end cover edge spinning device comprises a rack. The rack is provided with a material containing port. The circular end cover edge spinning device is characterized by further comprising a driving pressing head, a pressing wheel and a bending pressing head; the driving pressing head and the pressing wheel press a circular end cover and drive the circular end cover to rotate, in the rotation process, force is applied to the edge of the circular end cover through ascending of the bending pressing head, and then the edge of the circular end cover is bent into a 90-degree vertical skirt edge. The circular end cover edge spinning device has the beneficial effects that the structure is reasonable, operation is easy and convenient, the requirement for skirt edge bending of end covers different in caliber can be met, the machining efficiency is greatly improved, and the product machining quality is guaranteed.

The invention discloses a bottle body blowing machine capable of online detecting whether gas leakage exists in a bottle body or not. The bottle body blowing machine comprises a machine table, a front die and a rear die. A die cavity is formed in the front die and the rear die. The bottle body blowing machine further comprises a gas leakage detection device used for detecting whether gas leakage exists in the plastic bottle body molded in the die cavity or not. The gas leakage detection device comprises a gas flow channel arranged on the front die or the rear die and communicated with the die cavity. The gas flow channel is connected with a flexible gas pipe. The machine body is provided with a gas detection device which can detect gas in a gas pipe. The gas detection device comprises a support arranged on the machine table. A gas cylinder connected with the gas pipe is arranged on the support. A piston rod of the gas cylinder is connected with a lifting block capable of moving vertically along the piston rod. The support is further provided with a detection switch which can detect the lifting block moving along with the piston rod when the piston rod of the gas cylinder stretches, and the detection switch is electrically connected an alarm arranged on the machine table through a controller of the bottle body blowing machine. The bottle body blowing machine is simple in structure and can online detect whether gas leakage exists in the bottle body molded in the bottle body blowing machine or not.

An insulating label comprising at least a layer a) of shrinkable and/or stretchable material and a further layer b) of insulating material; the layer a) exceeding at least one of the edges (4) of the layer b) in a longitudinal direction of the label (1), characterized in that the layers are mutually bound prior to application of the label (1) on a container.

The invention discloses a manufacturing process for longilineal and cylindrical parts, which relates to the technical field of processing of machinery parts. The processing technology comprises the following steps of: blanking firstly and processing an outer circle to form a semi-finished product; connecting a core rod at the lower end of a punching machine; fixing a mould with a cylindrical groove on a punching machine seat opposite to the core rod; vertically placing the semi-finished product into the mould with the cylindrical groove; placing a steel ball at the upper end of the center of the semi-finished product; and starting the punching machine to extrude the steel ball by the core rod to penetrate through the lower end of the semi-finished product. The traditional bore hole is replaced by the punching machine in the processing technology provided by the invention; each operator can finish about 3000 parts every working day, so that the processing technology has the advantages of high speed, high efficiency, lower production cost, low product error and high precision.

The invention discloses a cold spinning device used for a steel seamless gas cylinder. The cold spinning device comprises a core rod stretching in a cylinder blank to machine the inner surface, a connecting assembly connected to the end of the core rod, and a spinning wheel assembly located outside the cylinder blank. The spinning wheel assembly comprises a spinning wheel support, a spinning shaft rotationally arranged on the spinning wheel support in a matched manner, and spinning wheels arranged on the spinning shaft in a sleeving manner and abutting against the outer surface of the cylinder blank. One end of the spinning shaft stretches in a spinning wheel box body fixed to the spinning wheel support, and the other end of the spinning shaft stretches in an outer supporting sleeve fixed to the spinning wheel support. The end, in the outer supporting sleeve, of the spinning shaft is further sleeved with a supporting lining. Double rows of 6314 bearings are arranged between the supporting lining and the outer supporting sleeve. The part, stretching in the spinning wheel box body, of the spinning shaft is divided into a first shaft section, a second shaft section and a third shaft section, wherein the shaft diameter of the first shaft section, the shaft diameter of the second shaft section and the shaft diameter of the third shaft section are gradually decreased, the first shaft section is sleeved with a non-standard bearing, the second shaft section is sleeved with a thrust roller bearing and the third shaft section is sleeved with a tapered roller bearing. The connecting assembly comprises a connecting piece installed on a drive device and a butt joint located between the connecting piece and the core rod.

A can end includes a center panel, an annular portion disposed about the center panel, a chuck wall disposed about the annular portion, a curl extending radially outwardly from the chuck wall, the annular portion including a subsurface step.