Abstract: A drink can induction heating apparatus includes a ferrite core having a plurality of projected portions and recesses formed between the adjacent projected portions. When a drink can is set in a position to be heated, each of the projected portions is oriented toward a longitudinal axis of the drink can and a particular portion of a circumferential wall of the drink can. The apparatus further includes a saddle-shaped heating coil which is partly received in the recesses of the ferrite core and covers a region around the foregoing particular portions of the drink can in a non-contact manner, and an inverter for feeding the AC power to the heating coil. The inverter is arranged to produce the AC power at a resonance frequency which corresponds to one of 5 kHz to 15 kHz where equivalent resistance values of an aluminum can and a steel can approximate to each other.

Abstract: In a surgical instrument having at least one jaw part which is attached to at least one handle part by a pulling or pushing element which is movable along its lengthwise axis (A), there is associated with the pulling or pushing element a pin or the like which engages into a recess which is associated with the handle part and the axis (B) of which extends at an angle (w) to the lengthwise axis (A) of the pulling or pushing element.

Abstract: In a process for soldering on large-area plates of aluminum or aluminum alloys on to a workpiece comprising an iron-base alloy, use is made of a soldering paste comprising a flux with about 50% potassium fluoride and about 50% aluminum fluoride, a solder powder with about 80 to 90% aluminum and 20 to 10% silicon and a binder on a polymethacrylate base. In addition the respective proportions of the flux are between 40 and 60% by weight, the solder powder between 60 and 40% by weight and the binder between 0.2 and 2% by weight.

Abstract: A hydraulic actuator consists of a cylinder and a piston whose primary face is acted on by a working fluid and from whose secondary face protrudes a piston rod, the working fluid being furnished by a pressure fluid source. In order to allow for fast shifting at a precise point in time even at lowest ambient temperatures, a secondary circuit leads from the pressure fluid source via a changeover valve through channels in the wall of the cylinder and through the cylinder space to the secondary side of the piston, the changeover valve being selectively operated in order to allow working fluid to act on the primary side of the piston. By this secondary circuit, the actuator is kept at working temperature.

Abstract: A catalyst for use in a process for steam conversion of a heavy hydrocarbon feedstock includes the steps of: providing a heavy hydrocarbon feedstock; providing a catalytically active phase comprising a first metal and a second metal wherein said first metal is a non-noble Group VIII metal and said second metal is an alkali metal; and contacting said feedstock with steam at a pressure of less than or equal to about 300 psig in the presence of said catalytically active phase so as to provide a hydrocarbon product having a reduced boiling point. The catalyst may be supported on a support material or mixed directly with the feedstock and comprises a first metal selected from the group consisting of non-noble Group VIII metals and mixtures thereof and a second metal comprising an alkali metal wherein said catalyst is active to convert said heavy hydrocarbon at a pressure of less than or equal to about 300 psig.

Abstract: A molded part has welding sleeve portions (2) which are each provided with a heating coil (3a, 3b) for joining to tubular parts. A cylindrical sleeve end part (7) can be tensioned by at least one tensioning system against the inserted tubular part, thus providing fixing and holding of the parts before welding and during welding.

Abstract: A new and improved drain valve for use with plastic fluid flow components, such as pipes, conduits, fittings, joints and the like is provided. The drain valves include a thermoplastic housing which is directly attached by welding or heat-fusion bonding to a plastic line component or is molded in during the molding step for making the line component. Valving members are assembled to the plastic housing to provide for selective drainage of the plastic line components as desired. The new and improved drain valves permit incorporation of drain valves into plastic conduits and fluid flow systems in a sealed and secure manner substantially in the absence of secondary sealing members.

Abstract: A catalyst for use in a process for steam conversion of a heavy hydrocarbon feedstock includes the steps of: providing a heavy hydrocarbon feedstock; providing a catalytically active phase comprising a first metal and a second metal wherein said first metal is a non-noble Group VIII metal and said second metal is an alkali metal; and contacting said feedstock with steam at a pressure of less than or equal to about 300 psig in the presence of said catalytically active phase so as to provide a hydrocarbon product having a reduced boiling point. The catalyst may be supported on a support material or mixed directly with the feedstock and comprises a first metal selected from the group consisting of non-noble Group VIII metals and mixtures thereof and a second metal comprising an alkali metal wherein said catalyst is active to convert said heavy hydrocarbon at a pressure of less than or equal to about 300 psig.

Abstract: A multi-layer preform for forming multi-layer containers includes an extruded upper portion having a first thickness which is adapted to form an upper portion of a container. The preform also includes an extruded intermediate portion having a second thickness thicker than the first thickness. The intermediate portion is connected with the upper portion and is adapted to form an intermediate body portion of the container. The preform also includes an extruded base portion having a third thickness thicker than the second thickness. The base portion is connected with the intermediate portion and is adapted form a base portion of the container. The portions of the preform are preferably formed from an inner layer and a barrier layer wherein the layers are co-extruded for forming the preform and an outer injection molded layer. In one embodiment, the inner layer includes a lip which overlaps the top edge of the barrier and outer layers. A multi-layer container is then formable from blow molding the preform.

Abstract: The present invention relates to a modular fluid distribution block having particular utility in a cooling system for the mold of an injection molding machine. The fluid distribution block of the present invention is characterized by a housing having a plurality of ports in fluid communication with each other and a plurality of feet. The feet have three orthogonally arranged bores machined therein to allow the fluid distribution block to be connected to another fluid distribution block, a plate for closing off a port and/or a fitting for allowing the fluid distribution block to be connected to another component such as a flexible hose. The fluid distribution block is preferably formed from a corrosive resistant material to avoid the problem of scaling. The manner in which the fluid distribution block is incorporated into a system for providing a mold with cooling fluid is also described.

Abstract: A catalyst for production of high octane number gasoline having low aromatic content from a hydrocarbon feedstock containing n-paraffins includes a zeolite composition containing chromium in an amount of between about 0.1% to about 1.0% by weight of the catalyst, said chromium being located at acidic sites of said zeolite composition whereby aromatic forming reactions are inhibited. The catalyst is provided according to a process including sequential impregnation so as to position chromium at the acidic sites as desired.

Abstract: Connection of two longitudinal sections (10, 22) that are at an angle to each other, each longitudinal section (10, 22) having two connecting sides (12) and two wall sides (14), where at least one connecting side (12) of each section (10, 22) exhibits a groove (24) that is undercut on both sides and on both sides of the undercut groove (24) an integral longitudinal flange (30). The first longitudinal section (10) exhibits a transversely cut section face, the end face (16) of the first longitudinal section (10) which is secured at an angle to a connecting side (12) of the second longitudinal section (22). The first longitudinal section (10) exhibits a recess (18) at its end (16) in which a connecting element (60), introduced into the groove-like recess (34) between the longitudinal flanges (30) in the second longitudinal section (22), engages--as a result of which the connecting element (60) forms a mechanical joint by virtue of fit with the end recess (10).

Abstract: A method for producing a container, such as for example a can or tube, for the accommodation of a filling material, wherein after production of the container, its interior is primed and wherein a coating is applied on the primer with a layer thickness of 30-70 um. A plastic, preferably made of a polyolefin or the like, is used as the coating.

Abstract: A corner connector (3) joins together two orthogonally disposed sections (1, 2) with C-shaped connecting means. The sections (1,2) have two flanges (11) with a strut (12) on each projecting inwards. The corner connector (3) comprises two angular pieces (4), at least two wedging pieces (5), at least two bolts (6) and at least two clamping pieces (7). The angular pieces (4) have on each flange a wedging surface (22) that press against the nose (14) of the struts (12), and a wedging surface (28) on the side opposite the flange. The wedging piece (5) is drawn by bolt (6) over the wedging surface (28) between the flanges (20), causing the flanges (20) to be tensed against the section. The clamping pieces (7) engage on the projections (13) on the struts (12). The wedging pieces (5) tensed against the clamping pieces (7) do not cause the flanges (11) to be spread apart. This arrangement results in a joint exhibiting high bend strength and high tensile strength in particular by means of friction.

Abstract: Heat exchanger for cooling semi-conductor elements or such equipment, in particular high capacity cooling unit of extruded aluminum or another light weight metal, featuring cooling fins that are connected to a base plate, are spaced apart from each other and are each in the form of a hollow section with two parallel fin walls connected by transverse struts, where the cooling fin is secured in a groove or like recess in the base plate. A free groove is provided beside each occupied groove in the base plate 14 of the heat exchanger and accommodates a counter-lying cooling fin of a second heat exchanger into the base plate of which the cooling fins of the first heat exchanger engage.

Abstract: The present invention relates to an articular joint replacement system. The system has first and second components. Each component has a tapered head piece for covering the end of a bone and for acting as an articular surface, an integrally formed screw stem having a length sufficient to extend into the medullary canal, and inwardly angled bone grips affixed to the underside of the head piece to allow solid fixation to the bone by compression press fit. The head piece of the first component is provided with a shaped exterior surface which complements the shaped exterior surface of the head piece of the second component and which allows motion in three planes.

Abstract: A redistributing device for use with melt flow exhibiting boundary layer flow and centralized flow comprises a body including a melt flow inlet end and a plurality of melt flow outlets. A first flow diverter is included for distributing at least the boundary layer flow among the plurality of the melt flow outlets. A second flow diverter is included for distributing at least the centralized flow among the plurality of melt flow outlets.

Abstract: The invention relates to a system for training helicopter pilots, more particularly to a system to be used as a highly efficient means for complementing present methods for training pilots. The object of the invention is avoiding the stress to which the trainee is subjected during the first flights and providing understanding of the helicopter behavior easily and without risk. The invention proposes a system basically comprised by a structure and a conventional helicopter permitting simulating stationary or translational actual flight without separating from the ground. The structure comprises a shiftable base having a support for free rotation of a frame from which the helicopter is suspended, so that it may raise and lower within set limits and also that it may be tilted to the sides in a restricted way. This giving the possibility of practicing various maneuvers, also considerably reducing the training cost.

Abstract: A low density, antimigratory cement composition includes cement, water and between about 0.5 to about 2.5 gallons per sack of cement of an additive wherein the additive is a copolymer of an impermeability agent and a gelling agent wherein said impermeability agent is a vinyl acetate-containing material and wherein said gelling agent is a vinyl ester which is compatible with said impermeability agent, whereby said cement composition in slurry form is thixotropic and resistant to gas migration.