Abstract: The waste container holding system comprises: a magnetic grid including at least two, spaced, elongate magnetizable metal bar units fixed to or in a ground surface, each elongate magnetizable metal bar unit comprising at least one elongate metal bar having a length of at least two feet and at least two magnets positioned adjacent to each elongate metal bar in each elongate magnetizable metal bar unit and spaced along the length of each elongate metal bar. The elongate metal bar units are spaced from each other when mounted in one of the ground, asphalt or concrete with a desired spacing between the at least two elongate metal bar units. The system also includes a generally flat magnetizable plate fixed at or to a bottom surface of at least one waste container or in the bottom of the container closely adjacent to the bottom surface whereby the at least one waste container is held to the magnetic grid against ambient wind by the magnetic force between the plate and the magnetic grid.

Abstract: The OFDM communications system for wireless networks includes at least one transmitter and at least one receiver. Each transmitter includes a signal source, a transmit modulator that arranges the data into packets and appends a pilot symbol of a repeated pseudo random binary sequence to the start of each packet, a multiplexer, an inverse fast Fourier transform, an up-sampler, a digital low pass filter, a digital to analogue converter, and an RF module. Each receiver includes an RF module, an analogue to digital converter, a digital low pass filter, a down-sampler, a frame detector to search for significant pilot symbol correlations and make initial estimates of at least one signal parameter, a digital phase locked loop to remove estimated frequency- and phase-offsets, a fast Fourier transform operator, a linear phase corrector to remove estimated sub-sample timing errors, a decision block, and a demultiplexer.

Abstract: A mobile display unit (1) for street traders is described, which is particularly recommended to contain, conserve, transport and display goods, i.e. objects or foodstuffs in travelling markets. The mobile unit (1) is formed by a structure composed of a base frame (2a) from which uprights (2b) are detached to which a second frame (2c) is attached that forms the upper surface and a third frame (2d) placed between the other two frames (2a, 2c). The structure accommodates at least one pair of warehouse cases (7, 8) or sliding containers on guides, placed one above the other in the rest mode and side by side in the operative mode.

Abstract: The object of the invention is a power inverter, the bottom of the housing (1) of the power inverter being configured to be stepped, cooling bodies (10, 11) being disposed on the exterior face of the stepped bottom, at least two printed circuit boards (6, 8) that overlap each other and communicate with the respective one of the cooling bodies (10, 11) through semiconductor components being provided.

Abstract: The invention relates to a device for measuring the geometry of a wheel axle of a motor vehicle, said device comprising a hub gripping element (20) for gripping and rotating a hub (50) of the wheel axle, and at least one measuring sensor (58). The invention also relates to a method using said device. The aim of the invention is to create one such device and one such method which enable measuring values to be much more precisely recorded. To this end, the hub gripping element (20) comprises at least one stud (42, 44, 46) that can be screwed into a threaded borehole on the hub (50) or the brake disk (62) in order to fix the wheel axle to the hub gripping element (20).

Abstract: An inverter is devised to avoid high-frequency voltages at input terminals and to allow good efficiency thanks to its simple and cost-optimized circuit layout. This is achieved by a method of converting a direct current voltage, more specifically from a photovoltaic source of direct current voltage, into an alternating current voltage at a frequency through a bridge circuit comprising switching elements (V1-V 4) and free-wheeling elements (D1-D4), said switching elements (V1-V4) being on the one side gated at the frequency and on the other side clocked at a high clock rate, a direct current voltage circuit, an alternating current voltage circuit and a plurality of free-wheeling phases being provided.

Abstract: The present invention relates to a power supply terminal of connecting devices of electrical conduction that includes an insulating terminal block. An earth wire connecting block, zero wire connecting block and two live wire connecting blocks are juxtaposed in said terminal block. Said earth wire connecting block, zero wire connecting block and two live wire connecting blocks respectively have the corresponding wiring input terminal and wiring output terminal.

Abstract: The method of determining, by absorption spectroscopy, the pressure of a gas mixture in a vacuum container located in an environment containing the gas to be measured, and the pressure of the gas is different from that in the vacuum container. A device comprising a laser and a laser detector measures an absorption curve AR(?) of the gas in the beam path between the laser and the detector. The vacuum container is placed into the beam path and the absorption curve AM(?) of the gas is determined in the beam path into which the vacuum container has been placed and the absorption curve AR(?) is made to coincide by compression with the absorption curve AM(?A) outside of the absorption curve of the gas, the extent of compression being determined by a proportionality factor c, the following relation for determining the gas to be measured in the vacuum container being: AG(?)=AM(?)? c·AR(?).

Abstract: A water quality detecting device for an aquarium includes a casing, a transparent cover and a seat. Two pairs of circular recesses are respectively defined in opposite ends of the upper and lower faces of the casing. A close water guiding groove is defined in the upper and lower faces and opposite side faces of the casing connecting the circular recesses. A positioning slot is defined in the center of the rear face of the casing close the bottom edge. The transparent cover includes a covering board, and upper and lower sidewalls extending perpendicularly from the upper and lower edges of the covering board and respectively covering the circular recesses and the water guiding groove. A pair of cylindrical posts is disposed at inner sides of the upper and lower sidewalls close one end thereof for correspondingly extending into one pair of circular recesses.

Abstract: The Object of the invention as a seal for aircraft boarding stairs or for an aircraft boarding bridge, said seal comprising a U-shaped bellows (5) spanning a gangway bottom plate (10), said bellows (5) comprising a flexible frame (3) at its one open end, said flexible frame having a bumper (4) made from an elastically resilient material, whereby the bellows (5) is separable.

Abstract: The subject matter of the present invention is a method of automatically recognizing an electrical system by which both the voltage of an electrical system (2) and the phase angle between phases of the system are monitored so that human technical failure upon connecting a plant (1) to said electrical system (2) be reliably prevented.

Abstract: Low-cost intelligent control and communication devices are arranged to communicate with one another over one or more shared physical media, such as a powerline or a radio frequency band. No network controller is needed, because any device can act as a master, slave, or repeater. Adding more devices makes the system more robust, by virtue of a simple protocol for communication retransmissions and retries.

Abstract: The object of the invention is a protective device for a load carrying apparatus for preventing or reducing an electric arc during separation of the load current carrying plug connectors (2) using a switch (7) that reduces the load current to such an extent that the load current that remains is harmless, with a protective cover (5) for the load current plug connectors (2), said cover being securable to the apparatus and making it more difficult to remove the load current plug connectors (2) as long as it is secured to the apparatus, said protective cover (5) comprising a means that is operably connected to the switch in such a manner that the load current is reduced by the switch (7) when the protective cover is removed from the apparatus, said protective cover (5) comprising electrical contacts (10) for an electrical means and for electrical connection to additional contacts on the apparatus so that the contacts (10) of the protective cover (5) are separated from the additional contacts (11) and the load cur

Abstract: The invention is directed to a corridor connection (1) of a connection having a bellows between two vehicles connected together by a joint (30), e.g., of an articulated bus or a vehicle with a trailer, the corridor connection (1) comprising two overlapping bottom plates (2, 3) that are slidable relative to each other, said joint (30) including a joint carrier part (20) that is disposed on the one vehicle part, the lower bottom plate (2) slidably resting on said joint carrier part (20) and the upper bottom plate (3) resting on said lower bottom plate (2) in the region of said joint carrier part (20).

Abstract: The invention relates to a device for measuring the geometry of a wheel axle of a motor vehicle, said device comprising a clamping chuck (56) which is provided with clamping jaws (32, 34, 36) and is used to receive a hub of a wheel axle, and a drive for rotating the clamping chuck (56). In order to increase the measuring precision, the drive is embodied as an electric drive, especially as a servomotor, and both rotatably drives the clamping chuck (56) and actuates the clamping jaws (32, 34, 36) of the clamping chuck (56) in the radial direction. Furthermore, according to the invention, the clamping jaws are radially displaced by means of a link motion with an eccentric plate or a spiral motion with a spiral of Archimedes in such a way as to obtain an automatic lock.

Abstract: The invention relates to a vertebral body placeholder having a cylindrical inner body (14), which can be telescopically inserted into a coaxially arranged, sleeve-shaped outer body (16). A detent device that works in one direction is arranged between the inner body (14) and the outer body (16). A number of detent projections (22) are arranged in succession in an axial direction and form a row (20) of detent projections. A number of detent notches (26) are arranged in succession in an axial direction while corresponding to the row (20) of detent projections. Said detent notches form a row (24) of detent notches that completely or partially accommodate the row (20) of detent projections. The invention also relates to a method for assembling said vertebral body placeholder. The aim of the invention is to create a vertebral body placeholder whose overall height can be easily and reliably adjusted, particularly, during implantation.