Abstract: Eddy currents are generated in an object constructed of a conductive material by transmitting an electromagnetic signal to the object and detecting electromagnetic signals generated by eddy currents induced in the object, and an electromagnetic signal V(t) is described by a product of two factors F and G(t), wherein F is a function of the geometry and electrical and magnetic properties of the material and G(t) is a function of geometry of the material, the electrical and magnetic properties of the material, the thickness perpendicular to the surface of the material, and time.

Abstract: A drum charging system (100) is disclosed, for alleviating ergonomic concerns and chemical exposure hazards associated with the manual addition of solid materials from drums into processing equipment. The drum charging system (100) is adapted to be utilized with drum containers (102) having solid materials contained within a material bag (104). The system (100) comprises a ventilation sleeve (110) and a drum manipulator (200). The ventilation sleeve (110) captures dust which may be generated during the addition of solid materials from the drum (102) and material bag (104) into a reaction vessel (106). The drum manipulator (200) is adapted to be portable and facilitates manipulation of drums during charging functions.

Abstract: An air gun pellet with a head including two distinct structural features, providing overall improved performance. The first feature is a multiple section rim or cup on the head which enlarges or mushrooms upon impact. The second feature is a central driving point contained within the cup on the head. The combination of these features provides a synergistic effect resulting in a pellet having improved penetration, shock wave and tissue destruction.

Abstract: A conveyor mat for conveying products in a conveying direction between at least two divert wheels. The conveyor mat comprises a number of rows of side-by-side modules succeeding each other in the conveying direction and extending transversely to the conveying direction. Incorporated into the conveyor mat are a number of guide modules which have their bottom side provided with guide members for cooperation with a guide provided on a conveying track. According to the invention, the guide modules are incorporated into the conveyor mat so as to be substantially equally spaced from one of the lateral edges thereof, such that the guide members together constitute one narrow, slotted guide track extending in conveying direction. In an advantageous manner, the guide modules can be incorporated adjacent a lateral edge of the conveyor mat or in or adjacent the center of the conveyor mat.

Abstract: A bracket for a machine frame, such as a core molding machine frame, having horizontal and vertical members includes first and second legs adapted for attachment to the machine frame members. The first and second legs are formed from a plate material and extend perpendicular to each other. The bracket is welded around its periphery to the machine frame. A free end of at least one of the first and second legs has a tapered portion, and one or more openings may be provided in the bracket. An outer periphery of the tapered portion and an inner periphery of the openings are welded to the machine frame for further extending the total weld length and reducing stress concentration in the weld joints.

Abstract: A module for a modular conveyor mat is provided with front hinge loops and rear hinge loops and the front hinge loops of one module are adapted to be joined to rear hinge loops of an adjacent module by a hinge pin extending transversely to the conveying direction, a recess in the module accommodates a retaining member having a closing part rotatable between a first position for retaining the hinge pin and a second position for releasing the hinge pin.

Abstract: A heat exchanger tube is composed of a metal outer tube having an inner profile and a metal inner tube having an outer profile, wherein the profiles are in an undercut engagement with each other so that the inner and outer tubes are in rigid abutment and at least one longitudinal channel, formed between the outer tube and the inner tube is provided for leak detection and the heat exchanger tube may be manufactured by designing the profile so that the inner and outer tubes may be screwed or slid into one another to provide a rigidly abutting configuration.

Abstract: A conveyor mat for conveying products in a conveying direction between at least two divert wheels. The conveyor mat comprises a number of plastic modules succeeding each other in conveying direction and extending transversely to the conveying direction, which modules, in conveying direction, each have their front and rear sides provided with hinge loops. The hinge loops of modules that succeed each other in conveying direction cooperate and are coupled by means of hinge pins extending transversely to the conveying direction. The top faces of the modules together constitute a conveying face. The modules are each provided with through openings extending substantially transversely to the conveying face, and with a substantially flat top face in which at least one groove, extending in conveying direction, is provided. The modules are coupled so that the conveying face comprises a substantially straight slot extending in conveying direction over the length of the conveyor mat.

Abstract: A pointer assembly (12) is disclosed, which is mounted to a conventional gauge assembly (14). The assembly includes a pointer (20) having an elongated tapered body (70), with the body (70) having a proximal end (76) and a distal end (78). Illumination from a light source (36) is provided to a light pipe (34) which transmits the collected light from the source (36) upwardly toward a base (22) at a point forward of a gauge shaft (30). The transmitted light is redirected by a beveled surface (100) toward the rear where the light is once again redirected by a second beveled surface (104) thereof The light then travels upwardly into the proximal end (76) of the pointer (20), where it is redirected toward the distal end (78) of the pointer (20) by a third beveled surface (90). A liner (96) is provided which is mounted to the underside of the pointer (20). Light rays encountering the liner are reflected upwardly through the top surface of the pointer body (70).

Abstract: A plurality of sensing coils are formed by spiral coil electrical conductor sections deposited on a flexible substrate which is formed into a cylindrical form about a central axis. The conductor sections are spaced apart by a distance equivalent to one-quarter of the circumferencial length of the cylindrical form, to define four separate coils spaced apart by 90 degrees. Coil sections are deposited in the register on opposite sides of the substrate and interconnected through the substrate. The coil pattern may be repeated in adjacent areas of the substrate to form a multi-layered coil when a number of turns of the substrate are wound around the central axis.

Abstract: A method for expansion control in a closed fluid circulation system with varying temperature, in which system air is drawn from the circulating fluid through the formation of an air head wherein air to be withdrawn is collected and from which air can be blown off, controlled by a valve, to the environment or a receiving space, while further off, measures are taken for taking up, when the temperature varies, an attendant expansion and shrinking of the fluid within the closed system, and measures for enabling adding fluid to the system, which fluid is withdrawn from an external stock of fluid under pressure, and the air head volume is measured and when a predetermined value is exceeded, a fluid valve is opened through which fluid is introduced into the air head until the volume of the air head is substantially equal to the predetermined value and the fluid valve is closed.

Abstract: Body support having an air core (2, 3; 52) and a bellows (6, 7; 56), integrated into a side edge portion (4, 5) from a compliant filling material, and having compliant filling material in an inner space. The body support further comprises passages (13, 14, 15; 63, 64, 65) which connect the bellows (6, 7; 56) with the air core (2, 3; 52) and connect the bellows (6, 7; 56) and the air core (2, 3; 52) with the surroundings, and comprising valves (16, 17; 67, 70) for blocking in a condition of rest air flow from the air core (2, 3; 52). Because the inner space of the bellows (6, 7; 56) in the condition of rest is in open communication with the surroundings, the compressibility of the bellows filled with filling material is well adapted to the compressibility of adjacent side edge portions, which are also filled with filling material, and the maximum load of the bellows is limited.

Abstract: Upper part and return part of a bend segment for a chain conveyor provided with a conveyor chain movable over a track with at least one bend zone, which bend segment consists of at least one substantially U-shaped element made of plastic, which element comprises two legs forming the rails which the chain can move over or in, respectively, as well as a connecting portion connecting the legs of the element with each other, and which chain is provided with links each provided with a substantially rectangular bearing surface and a connection system situated under the bearing surface, wherein at least the portion of the legs of the bend segment that forms the guide for the bearing surfaces and connection systems of the chain links is manufactured from a first, high-grade type of plastic material, and the residual portion, if any, of the legs and the connecting portion are manufactured from at least a second, cheaper type of plastic material, for instance a recycled plastic material.

Abstract: The invention centers around a circuit board assembly having a heat sink with a buss bar integrally formed therein. The heat sink is provided between two parallel, opposed circuit boards. The buss bar is provided between the two circuit boards and is in electrical contact with circuit modules provided on both circuit boards. The buss bar is electrically insulated from both the circuit boards and the heat sink but electrically connected to the circuit modules.

Abstract: A process for determining complement activation due to contact between a biomaterial and a complement system, by incubating in vitro the biomaterial with the complement system and determining the formation of a complement convertase by using a substrate of the complement convertase and detecting substrate cleavage. The biomaterial after said incubation with the complement system may be separated therefrom and formation of a complement convertase may be determined with the separated biomaterial, the separated complement system, or both. The complement convertase may be Factor B convertase, C3 convertase or C5 convertase, and the substrate may be a labeled oligopeptide comprising an amino acid sequence corresponding to the cleavage site of the complement convertase. Suitable labels are dyes, fluorochromes, radioactive atoms or groups, and enzymes. Either classical or alternative pathway complement activation, or both, are determined.

Abstract: There is described a tugboat (1) having three azimuthal propelling units (10, 20, 30), two (10, 20) of which are juxtaposed below the stern (7), symmetrically relative to the main plane of symmetry (2), while the third azimuthal propelling unit (30) is disposed in the main plane of symmetry (2) the stern (6), preferably before the rearmost towing point (8).

Abstract: A driving apparatus for driving a drive shaft, which includes a number of kites and at least one pulling cable, and means for varying the position of the kites, the kites being arranged to follow an ascending path and a descending path, the kites being connected to the at least one pulling cable, which pulling cable engages a driving element which is connected to the drive shaft, and the means for varying the position of the kites are arranged to impose a first position on the kites in the ascending path in which they are subject to an upward force under the influence of the wind, and a second position in the descending path in which the kites, under the influence of the wind, are subject to a lesser upward force than in the ascending path or even are subject to a downward force.

Abstract: A multi-user services module (10) includes a housing portion (12) with a hemispherical configuration. The hemispherical housing portion (12) is integrally molded to a depending cylindrical housing portion (14). The cylindrical housing portion (14) is fitted into an opening in a conference table (19) or the like. Power receptacles (20) and data receptacles (22) are molded and installed in the hemispherical housing portion (12).

Abstract: A mounting system for attaching a junction block to a surface includes a mounting block having a base for connection to one of the sides of a junction block and a mounting portion attached to and extending away from the base for installing the mounting block on the surface. The junction block sides are configured to receive modular electrical receptacles. The mounting system is attached to the side of the junction block that faces the surface. The mounting portion of the mounting block comprises a wall that is integrally formed with the base. The wall includes one or more apertures sized to receive fasteners for mounting the block to the surface. In an alternative embodiment, a mounting bracket is provided for attachment between the surface and the mounting portion of the mounting block. The mounting bracket includes a bracket wall with first and second spaced-apart support brackets and a retaining tab extending from the wall. The retaining tab is positioned between the first and second support brackets.

Abstract: An electrical interconnection assembly for use in a spce-divider wall system including a plurality of modular upright wall panels having vertically extending opposite end edges and a raceway area extending between the opposite edges for supporting electrical conductors and junction blocks, the assembly adapted to be mounted in the raceway and comprising:at least one junction block for receiving electrical receptacles;a plurality of first receptacle connectors formed integral to the junction block for interchangeably receiving electrical outlet receptacles and at least one power cable;the at least one power cable attaching between the junction block and a power source for supplying power to the junction block;the junction block being a two-sided junction block with at least two of the first receptacle connectors being oppositely directed, the junction block further comprising at least one inside second receptacle connector on at least one side of the junction block to accommodate electrical outlet receptacles;