Abstract: A guide support for a tube bending machine comprising a base frame, a bending head, a bending arm, a bending roller, a locking jaw, sliding means for the displacement of the bending head in horizontal and vertical directions with respect to the base frame, at least two guides carried on an element and including recesses arranged in opposite directions with respect to the tube, guiding means for the element on the bending head, the guide element being guided in a horizontal translation motion on a plate securely fastened to the bending head, the guiding means being positioned adjacent a first surface of the element, and the at least two guides being arranged parallel to each other adjacent a second, opposite surface of the element. As a result of the guide support, either clockwise or counterclockwise bending can be effectuated on the same tube bending machine.

Abstract: A fastener has a body and a cage with cam surfaces formed on interengaging components to inhibit relative rotation. In one embodiment a washer is interposed between said surfaces and has oppositely directed faces with cam surfaces formed on them. In a further embodiment, the underside of the cage has serrations formed on it.

Abstract: The present invention provides a method of authenticating a pair of correspondents in a communication system, such as in a mobile phone network by utilizing a blend of public-key cryptography and symmetric cryptography. Each session between the mobile phone and the network consists of public-key based mutual authentication and key exchange followed by symmetric-key secure data exchange.

Abstract: A wireless linear motor comprising: a stationary stator having permanent magnets; a movable stage having coils and a controller with a transceiver for wirelessly communicating with an external data processing system, the controller adapted to energize the coils to position the stage over the stator in response to control signals from the external system; and, a frame having first and second electrically conductive linear guides for slideably mounting the stage over the stator, wherein each linear guide has a stage portion attached to the stage through a first electrical insulator, a frame portion attached to the frame through a second electrical insulator, a plurality of ball bearings disposed between and electrically coupling the stage and frame portions, and a conductor coupling the stage portion to the controller for providing electrical power from an external power supply to the controller through the frame portion of each guide.

Abstract: DC—DC converters have high side and rectifier circuits, and output capacitor. High side circuit connects between input voltage and output voltage, and has primary winding and auxiliary section that operate transformer properly. Auxiliary may have switches or combination of switches and capacitors. High side circuit converts electrical into magnetic energy through transformer primary, which is then transferred to output through rectifier circuit. It also transfers energy directly to output voltage. Converters have high efficiency, fast dynamic response and high current output. Converters can have large duty cycle and large input voltage and output voltage conversion ratio. High side circuit can be half-bridge, full-bridge or forward converter. Rectifier uses inductors on either side of the secondary, and diodes or synchronous rectifiers, to rectify output voltage. Multi-phase interleaved circuits utilize shared switches to reduce size.

Abstract: A material handling system for use in storing and moving goods within multi-level storage warehouses, ocean going vessels and the like wherein storage areas are provided on at least one of the levels and wherein goods are automatically transferred to and from the storage areas and between the various levels by self-propelled load transfer vehicles. The load transfer vehicles move across the surface of the various levels and deliver are also movable within open vertical trunks between the levels to thereby move goods to any desired area.

Abstract: A system for loading, off-loading and/or transferring conventional international shipping containers with respect to transport vehicles which system includes a plurality of powered jacks each of which includes upper and lower container attachment members which are selectively engageable with upper and lower corner lock castings of the containers. Each attachment member is carried by a guide sleeve slideably mounted relative to a vertical standard with an upper guide sleeve being drivingly engaged with a power driven member such that, with the attachment members engaged with the corner locks of the container, the simultaneous activation of four jacks allows the elevation and/or lowering of a shipping container relative to a vehicle.

Abstract: The device object of this patent is composed of:—one box (1) which is U-shaped in its transversal section;—two guiding plates (2) for the magnets (4);—two L-shaped rolled sections (3), which constitute the magnets (4) pole pieces;—various magnets (4) placed parallelly to the ferromagnetic insert (8) to be tested; each magnet (4) is placed parallel to the ferromagnetic insert (8) sliding direction with respect to the device and vice versa;—various measuring coils (5) placed in a housing (6), which is U-shaped in its transversal section;—a covering plate (7) fixed to box (1) in such a way to occupy the device side facing the insert (8) to be tested;—simple gears permitting to direct, in following times, the coils (5) parallelly to the different angles of the ferromagnetic insert (8) layers.

Abstract: A one piece extruded differential side gear comprising internal splines which are used to connect to a drive shaft. The differential side gear includes outer circular gear teeth and defines a rectilinear blind hole in which an end portion of the drive shaft is received. The circular gear teeth and the blind hole are coaxially oriented along an axis of the differential side gear.

Abstract: A logic device for use with data signals having a continuously or semi-continuously varying waveform of substantially fixed frequency. The device provides a logical output from at least one of the data inputs and comprising a first pair of inputs each to receive a data signal having one of a predetermined set of values representing analog, discrete, or digital states. A combiner stage is used to combine the inputs and produce a signal therefrom. A filter stage is utilized to receive the signal and produce a conditioned signal representative of one of a pair of binary states. The conditioned signal is combined with a second control input. The resultant signal is passed to an output.

Abstract: A bending machine that includes a device that is used to drive and support a tube that is to be bent in relation to a bending head which is disposed at one end of a frame of the bending machine. The device includes a mandrel member that is solidly connected to an expandable member that is selectively applied against an inner wall of the tube to be bent and movement means that is used to align the mandrel member relative to a section of the tube to be bent during a bending step and that moves the expandable member to move the tube in translation and/or rotation between bending steps and when the expandable member is expanded to engage the inner wall of the tube.

Abstract: One DC-DC converter includes primary side circuit between high and low side inputs including first primary winding of first transformer, and auxiliary section; and rectifier circuits, with separate secondary windings of first transformer, and in parallel with one another and output and capacitor; an output capacitor between outputs and across rectifier circuit. Auxiliary causes transfer of power from first primary to first secondary winding and operation without saturation. Another converter includes primary side circuit including primary winding of plurality of transformers, and an auxiliary section; a rectifier circuit having secondary winding of the plurality of transformers, the rectifier circuit in parallel with output and capacitor; an output capacitor between outputs and across rectifier circuit. Auxiliary section includes switches for connecting and disconnecting primary windings from input, and for resetting transformers. Alternatively, auxiliary section includes switches and capacitors.

Abstract: Vehicle body restraint systems including buckles for latching and retaining latch plates associated with safety belts wherein the buckles includes latching mechanisms having oppositely oriented release mechanisms which are operative in such a manner that any force applied to one release mechanism which would act to release a latch plate creates an increased force on the opposing release mechanism to retain the latch plate in a locked position. Release of the latch plates can only occur upon the simultaneous activation of the opposing release mechanisms by manual force applied in opposite directions.

Abstract: A small animal litter box which comprises an upper tray with a perforated bottom wall for carrying litter material, and a lower tray for receiving urine and particles dropping from the first tray through the perforated bottom wall thereof. The first tray contains litter material in the form of pellets that are disintegrated into smaller particles when the pellets absorb urine, and the perforated bottom wall has holes dimensioned such that smaller particles from disintegrated pellets pass through the holes while intact pellets are prevented from passing through the holes.

Abstract: A spray bottle having a screw neck to which a manual trigger type spray dispenser having a dependent flexible suction tube can be secured. The bottle is provided with a vertical internal wall to divide it into two interconnecting compartments, and the free end of the suction tube is directed into the smaller of the two. A substantially horizontal internal wall is also provided to form a second wall of the smaller compartment to facilitate retention of liquid therein when the bottle is inverted.